quantrs2_device/dynamical_decoupling/
hardware.rs

1//! Hardware adaptation and analysis for dynamical decoupling
2
3use std::collections::HashMap;
4use std::time::Duration;
5
6use super::{
7    config::{DDHardwareConfig, DDPulseConfig},
8    sequences::DDSequence,
9};
10use crate::{calibration::CalibrationManager, topology::HardwareTopology, DeviceResult};
11use quantrs2_core::qubit::QubitId;
12
13/// Hardware analysis results for DD sequences
14#[derive(Debug, Clone)]
15pub struct DDHardwareAnalysis {
16    /// Hardware compatibility
17    pub hardware_compatibility: HardwareCompatibility,
18    /// Resource utilization
19    pub resource_utilization: ResourceUtilization,
20    /// Timing analysis
21    pub timing_analysis: TimingAnalysis,
22    /// Connectivity analysis
23    pub connectivity_analysis: ConnectivityAnalysis,
24    /// Error characterization
25    pub error_characterization: HardwareErrorCharacterization,
26    /// Implementation recommendations
27    pub implementation_recommendations: ImplementationRecommendations,
28    /// Platform-specific optimizations
29    pub platform_optimizations: Vec<String>,
30}
31
32/// Hardware compatibility assessment
33#[derive(Debug, Clone)]
34pub struct HardwareCompatibility {
35    /// Overall compatibility score
36    pub compatibility_score: f64,
37    /// Gate set compatibility
38    pub gate_set_compatibility: GateSetCompatibility,
39    /// Timing constraints satisfaction
40    pub timing_constraints_satisfied: bool,
41    /// Connectivity requirements met
42    pub connectivity_requirements_met: bool,
43    /// Hardware limitations
44    pub hardware_limitations: Vec<HardwareLimitation>,
45    /// Adaptation requirements
46    pub adaptation_requirements: Vec<AdaptationRequirement>,
47}
48
49/// Gate set compatibility
50#[derive(Debug, Clone)]
51pub struct GateSetCompatibility {
52    /// Available gates
53    pub available_gates: Vec<String>,
54    /// Required gates
55    pub required_gates: Vec<String>,
56    /// Missing gates
57    pub missing_gates: Vec<String>,
58    /// Gate decomposition map
59    pub gate_decompositions: HashMap<String, Vec<String>>,
60    /// Decomposition overhead
61    pub decomposition_overhead: HashMap<String, f64>,
62}
63
64/// Hardware limitation
65#[derive(Debug, Clone)]
66pub struct HardwareLimitation {
67    /// Limitation type
68    pub limitation_type: LimitationType,
69    /// Description
70    pub description: String,
71    /// Severity
72    pub severity: LimitationSeverity,
73    /// Impact on performance
74    pub performance_impact: f64,
75    /// Mitigation strategies
76    pub mitigation_strategies: Vec<String>,
77}
78
79/// Types of hardware limitations
80#[derive(Debug, Clone, PartialEq)]
81pub enum LimitationType {
82    /// Gate set limitations
83    GateSet,
84    /// Connectivity constraints
85    Connectivity,
86    /// Timing constraints
87    Timing,
88    /// Coherence limitations
89    Coherence,
90    /// Control limitations
91    Control,
92    /// Readout limitations
93    Readout,
94}
95
96/// Severity of limitations
97#[derive(Debug, Clone, PartialEq)]
98pub enum LimitationSeverity {
99    Low,
100    Medium,
101    High,
102    Critical,
103}
104
105/// Adaptation requirement
106#[derive(Debug, Clone)]
107pub struct AdaptationRequirement {
108    /// Requirement type
109    pub requirement_type: AdaptationType,
110    /// Description
111    pub description: String,
112    /// Priority
113    pub priority: AdaptationPriority,
114    /// Implementation complexity
115    pub complexity: AdaptationComplexity,
116    /// Expected benefit
117    pub expected_benefit: f64,
118}
119
120/// Types of adaptations
121#[derive(Debug, Clone, PartialEq)]
122pub enum AdaptationType {
123    /// Gate decomposition
124    GateDecomposition,
125    /// Routing adaptation
126    Routing,
127    /// Timing optimization
128    TimingOptimization,
129    /// Pulse optimization
130    PulseOptimization,
131    /// Error mitigation
132    ErrorMitigation,
133}
134
135/// Adaptation priority
136#[derive(Debug, Clone, PartialEq)]
137pub enum AdaptationPriority {
138    Low,
139    Medium,
140    High,
141    Critical,
142}
143
144/// Adaptation complexity
145#[derive(Debug, Clone, PartialEq)]
146pub enum AdaptationComplexity {
147    Simple,
148    Moderate,
149    Complex,
150    VeryComplex,
151}
152
153/// Resource utilization analysis
154#[derive(Debug, Clone)]
155pub struct ResourceUtilization {
156    /// Qubit utilization
157    pub qubit_utilization: QubitUtilization,
158    /// Gate resource usage
159    pub gate_resource_usage: GateResourceUsage,
160    /// Memory requirements
161    pub memory_requirements: MemoryRequirements,
162    /// Bandwidth requirements
163    pub bandwidth_requirements: BandwidthRequirements,
164    /// Power consumption
165    pub power_consumption: PowerConsumption,
166}
167
168/// Qubit utilization
169#[derive(Debug, Clone)]
170pub struct QubitUtilization {
171    /// Total qubits used
172    pub total_qubits_used: usize,
173    /// Qubit usage efficiency
174    pub usage_efficiency: f64,
175    /// Idle time per qubit
176    pub idle_times: HashMap<QubitId, Duration>,
177    /// Active time per qubit
178    pub active_times: HashMap<QubitId, Duration>,
179    /// Utilization per qubit
180    pub utilization_per_qubit: HashMap<QubitId, f64>,
181}
182
183/// Gate resource usage
184#[derive(Debug, Clone)]
185pub struct GateResourceUsage {
186    /// Gate count by type
187    pub gate_counts: HashMap<String, usize>,
188    /// Execution time by gate type
189    pub execution_times: HashMap<String, Duration>,
190    /// Resource efficiency
191    pub resource_efficiency: f64,
192    /// Parallel execution opportunities
193    pub parallel_opportunities: usize,
194}
195
196/// Memory requirements
197#[derive(Debug, Clone)]
198pub struct MemoryRequirements {
199    /// Classical memory required
200    pub classical_memory: usize,
201    /// Quantum state memory
202    pub quantum_memory: usize,
203    /// Control memory
204    pub control_memory: usize,
205    /// Total memory footprint
206    pub total_memory: usize,
207    /// Memory efficiency
208    pub memory_efficiency: f64,
209}
210
211/// Bandwidth requirements
212#[derive(Debug, Clone)]
213pub struct BandwidthRequirements {
214    /// Control bandwidth
215    pub control_bandwidth: f64,
216    /// Readout bandwidth
217    pub readout_bandwidth: f64,
218    /// Data transfer bandwidth
219    pub data_bandwidth: f64,
220    /// Peak bandwidth usage
221    pub peak_bandwidth: f64,
222    /// Average bandwidth usage
223    pub average_bandwidth: f64,
224}
225
226/// Power consumption analysis
227#[derive(Debug, Clone)]
228pub struct PowerConsumption {
229    /// Control power
230    pub control_power: f64,
231    /// Cooling power
232    pub cooling_power: f64,
233    /// Electronics power
234    pub electronics_power: f64,
235    /// Total power
236    pub total_power: f64,
237    /// Power efficiency
238    pub power_efficiency: f64,
239}
240
241/// Timing analysis
242#[derive(Debug, Clone)]
243pub struct TimingAnalysis {
244    /// Total execution time
245    pub total_execution_time: Duration,
246    /// Critical path analysis
247    pub critical_path: CriticalPathAnalysis,
248    /// Timing constraints
249    pub timing_constraints: TimingConstraints,
250    /// Timing optimization opportunities
251    pub optimization_opportunities: Vec<TimingOptimization>,
252    /// Synchronization requirements
253    pub synchronization_requirements: SynchronizationRequirements,
254}
255
256/// Critical path analysis
257#[derive(Debug, Clone)]
258pub struct CriticalPathAnalysis {
259    /// Critical path length
260    pub critical_path_length: Duration,
261    /// Critical path gates
262    pub critical_path_gates: Vec<String>,
263    /// Bottleneck identification
264    pub bottlenecks: Vec<TimingBottleneck>,
265    /// Slack analysis
266    pub slack_analysis: SlackAnalysis,
267}
268
269/// Timing bottleneck
270#[derive(Debug, Clone)]
271pub struct TimingBottleneck {
272    /// Bottleneck location
273    pub location: String,
274    /// Delay amount
275    pub delay: Duration,
276    /// Impact on total time
277    pub impact: f64,
278    /// Mitigation strategies
279    pub mitigations: Vec<String>,
280}
281
282/// Slack analysis
283#[derive(Debug, Clone)]
284pub struct SlackAnalysis {
285    /// Total slack
286    pub total_slack: Duration,
287    /// Free slack per operation
288    pub free_slack: HashMap<String, Duration>,
289    /// Slack utilization opportunities
290    pub slack_opportunities: Vec<SlackOpportunity>,
291}
292
293/// Slack utilization opportunity
294#[derive(Debug, Clone)]
295pub struct SlackOpportunity {
296    /// Operation that can be optimized
297    pub operation: String,
298    /// Available slack
299    pub available_slack: Duration,
300    /// Potential benefit
301    pub potential_benefit: f64,
302    /// Implementation difficulty
303    pub difficulty: f64,
304}
305
306/// Timing constraints
307#[derive(Debug, Clone)]
308pub struct TimingConstraints {
309    /// Minimum gate duration
310    pub min_gate_duration: Duration,
311    /// Maximum gate duration
312    pub max_gate_duration: Duration,
313    /// Coherence time constraints
314    pub coherence_constraints: HashMap<QubitId, Duration>,
315    /// Synchronization tolerances
316    pub sync_tolerances: HashMap<String, Duration>,
317}
318
319/// Timing optimization
320#[derive(Debug, Clone)]
321pub struct TimingOptimization {
322    /// Optimization type
323    pub optimization_type: TimingOptimizationType,
324    /// Expected improvement
325    pub expected_improvement: Duration,
326    /// Implementation cost
327    pub implementation_cost: f64,
328    /// Risk level
329    pub risk_level: OptimizationRisk,
330}
331
332/// Types of timing optimizations
333#[derive(Debug, Clone, PartialEq)]
334pub enum TimingOptimizationType {
335    /// Parallel execution
336    Parallelization,
337    /// Gate duration optimization
338    GateDurationOptimization,
339    /// Scheduling optimization
340    SchedulingOptimization,
341    /// Pipeline optimization
342    PipelineOptimization,
343}
344
345/// Risk level for optimizations
346#[derive(Debug, Clone, PartialEq)]
347pub enum OptimizationRisk {
348    Low,
349    Medium,
350    High,
351}
352
353/// Synchronization requirements
354#[derive(Debug, Clone, PartialEq)]
355pub enum SynchronizationRequirements {
356    /// Loose synchronization requirements
357    Loose,
358    /// Strict synchronization requirements
359    Strict,
360    /// Adaptive synchronization requirements
361    Adaptive,
362    /// Custom synchronization configuration
363    Custom {
364        /// Global synchronization needed
365        global_sync_required: bool,
366        /// Local synchronization points
367        local_sync_points: Vec<SyncPoint>,
368        /// Timing tolerance requirements
369        timing_tolerances: HashMap<String, f64>,
370        /// Clock domain requirements
371        clock_domains: Vec<ClockDomain>,
372    },
373}
374
375/// Synchronization point
376#[derive(Debug, Clone, PartialEq)]
377pub struct SyncPoint {
378    /// Point location in sequence
379    pub location: usize,
380    /// Synchronization type
381    pub sync_type: SyncType,
382    /// Tolerance
383    pub tolerance: Duration,
384    /// Critical level
385    pub criticality: SyncCriticality,
386}
387
388/// Types of synchronization
389#[derive(Debug, Clone, PartialEq)]
390pub enum SyncType {
391    HardSync,
392    SoftSync,
393    PhaseSync,
394    FrequencySync,
395}
396
397/// Synchronization criticality
398#[derive(Debug, Clone, PartialEq)]
399pub enum SyncCriticality {
400    Low,
401    Medium,
402    High,
403    Critical,
404}
405
406/// Clock domain
407#[derive(Debug, Clone, PartialEq)]
408pub struct ClockDomain {
409    /// Domain name
410    pub name: String,
411    /// Clock frequency
412    pub frequency: f64,
413    /// Phase relationship
414    pub phase_offset: f64,
415    /// Jitter tolerance
416    pub jitter_tolerance: f64,
417}
418
419/// Connectivity analysis
420#[derive(Debug, Clone)]
421pub struct ConnectivityAnalysis {
422    /// Required connectivity
423    pub required_connectivity: RequiredConnectivity,
424    /// Available connectivity
425    pub available_connectivity: AvailableConnectivity,
426    /// Routing analysis
427    pub routing_analysis: RoutingAnalysis,
428    /// Connectivity optimization
429    pub optimization_suggestions: Vec<ConnectivityOptimization>,
430}
431
432/// Required connectivity
433#[derive(Debug, Clone)]
434pub struct RequiredConnectivity {
435    /// Direct connections needed
436    pub direct_connections: Vec<(QubitId, QubitId)>,
437    /// Indirect connections needed
438    pub indirect_connections: Vec<ConnectivityPath>,
439    /// Connectivity quality requirements
440    pub quality_requirements: HashMap<(QubitId, QubitId), ConnectivityQuality>,
441}
442
443/// Connectivity path
444#[derive(Debug, Clone)]
445pub struct ConnectivityPath {
446    /// Source qubit
447    pub source: QubitId,
448    /// Target qubit
449    pub target: QubitId,
450    /// Path through intermediate qubits
451    pub path: Vec<QubitId>,
452    /// Path length
453    pub length: usize,
454    /// Path quality
455    pub quality: f64,
456}
457
458/// Connectivity quality requirements
459#[derive(Debug, Clone)]
460pub struct ConnectivityQuality {
461    /// Minimum fidelity
462    pub min_fidelity: f64,
463    /// Maximum error rate
464    pub max_error_rate: f64,
465    /// Required bandwidth
466    pub required_bandwidth: f64,
467    /// Latency tolerance
468    pub latency_tolerance: Duration,
469}
470
471/// Available connectivity
472#[derive(Debug, Clone)]
473pub struct AvailableConnectivity {
474    /// Physical connections
475    pub physical_connections: Vec<(QubitId, QubitId)>,
476    /// Connection qualities
477    pub connection_qualities: HashMap<(QubitId, QubitId), ConnectivityQuality>,
478    /// Routing capabilities
479    pub routing_capabilities: RoutingCapabilities,
480}
481
482/// Routing capabilities
483#[derive(Debug, Clone)]
484pub struct RoutingCapabilities {
485    /// Maximum routing distance
486    pub max_routing_distance: usize,
487    /// Routing fidelity degradation
488    pub fidelity_degradation_per_hop: f64,
489    /// Routing latency per hop
490    pub latency_per_hop: Duration,
491    /// Parallel routing capacity
492    pub parallel_routing_capacity: usize,
493}
494
495/// Routing analysis results
496#[derive(Debug, Clone)]
497pub struct RoutingAnalysis {
498    /// Routing success rate
499    pub success_rate: f64,
500    /// Average path length
501    pub average_path_length: f64,
502    /// Routing overhead
503    pub routing_overhead: f64,
504    /// Bottleneck connections
505    pub bottleneck_connections: Vec<(QubitId, QubitId)>,
506    /// Alternative routing options
507    pub alternative_routes: HashMap<(QubitId, QubitId), Vec<ConnectivityPath>>,
508}
509
510/// Connectivity optimization suggestion
511#[derive(Debug, Clone)]
512pub struct ConnectivityOptimization {
513    /// Optimization type
514    pub optimization_type: ConnectivityOptimizationType,
515    /// Target connections
516    pub target_connections: Vec<(QubitId, QubitId)>,
517    /// Expected improvement
518    pub expected_improvement: f64,
519    /// Implementation cost
520    pub implementation_cost: f64,
521    /// Feasibility
522    pub feasibility: OptimizationFeasibility,
523}
524
525/// Types of connectivity optimizations
526#[derive(Debug, Clone, PartialEq)]
527pub enum ConnectivityOptimizationType {
528    /// Add direct connections
529    AddDirectConnections,
530    /// Improve connection quality
531    ImproveConnectionQuality,
532    /// Optimize routing algorithms
533    OptimizeRouting,
534    /// Add intermediate qubits
535    AddIntermediateQubits,
536}
537
538/// Optimization feasibility
539#[derive(Debug, Clone, PartialEq)]
540pub enum OptimizationFeasibility {
541    HighlyFeasible,
542    Feasible,
543    Challenging,
544    Infeasible,
545}
546
547/// Hardware error characterization
548#[derive(Debug, Clone)]
549pub struct HardwareErrorCharacterization {
550    /// Gate error rates
551    pub gate_error_rates: HashMap<String, f64>,
552    /// Qubit error rates
553    pub qubit_error_rates: HashMap<QubitId, QubitErrorRates>,
554    /// Correlated errors
555    pub correlated_errors: CorrelatedErrors,
556    /// Error mitigation effectiveness
557    pub mitigation_effectiveness: HashMap<String, f64>,
558    /// Error model validation
559    pub error_model_validation: ErrorModelValidation,
560}
561
562/// Qubit error rates
563#[derive(Debug, Clone)]
564pub struct QubitErrorRates {
565    /// T1 (amplitude damping) time
566    pub t1_time: Duration,
567    /// T2* (dephasing) time
568    pub t2_star_time: Duration,
569    /// T2 (echo) time
570    pub t2_echo_time: Duration,
571    /// Readout error rate
572    pub readout_error_rate: f64,
573    /// State preparation error rate
574    pub preparation_error_rate: f64,
575}
576
577/// Correlated error analysis
578#[derive(Debug, Clone)]
579pub struct CorrelatedErrors {
580    /// Spatial correlations
581    pub spatial_correlations: HashMap<(QubitId, QubitId), f64>,
582    /// Temporal correlations
583    pub temporal_correlations: HashMap<QubitId, f64>,
584    /// Cross-talk matrix
585    pub crosstalk_matrix: HashMap<(QubitId, QubitId), f64>,
586    /// Correlated failure modes
587    pub correlated_failure_modes: Vec<CorrelatedFailureMode>,
588}
589
590/// Correlated failure mode
591#[derive(Debug, Clone)]
592pub struct CorrelatedFailureMode {
593    /// Affected qubits
594    pub affected_qubits: Vec<QubitId>,
595    /// Failure probability
596    pub failure_probability: f64,
597    /// Failure mechanism
598    pub mechanism: String,
599    /// Mitigation strategies
600    pub mitigation_strategies: Vec<String>,
601}
602
603/// Error model validation
604#[derive(Debug, Clone)]
605pub struct ErrorModelValidation {
606    /// Model accuracy
607    pub model_accuracy: f64,
608    /// Prediction error
609    pub prediction_error: f64,
610    /// Validation metrics
611    pub validation_metrics: HashMap<String, f64>,
612    /// Model limitations
613    pub model_limitations: Vec<String>,
614}
615
616/// Implementation recommendations
617#[derive(Debug, Clone)]
618pub struct ImplementationRecommendations {
619    /// High-priority recommendations
620    pub high_priority: Vec<Recommendation>,
621    /// Medium-priority recommendations
622    pub medium_priority: Vec<Recommendation>,
623    /// Low-priority recommendations
624    pub low_priority: Vec<Recommendation>,
625    /// Implementation roadmap
626    pub implementation_roadmap: ImplementationRoadmap,
627}
628
629/// Implementation recommendation
630#[derive(Debug, Clone)]
631pub struct Recommendation {
632    /// Recommendation title
633    pub title: String,
634    /// Description
635    pub description: String,
636    /// Expected benefit
637    pub expected_benefit: f64,
638    /// Implementation effort
639    pub implementation_effort: ImplementationEffort,
640    /// Timeline
641    pub timeline: Duration,
642    /// Dependencies
643    pub dependencies: Vec<String>,
644}
645
646/// Implementation effort levels
647#[derive(Debug, Clone, PartialEq)]
648pub enum ImplementationEffort {
649    Minimal,
650    Low,
651    Medium,
652    High,
653    Extensive,
654}
655
656/// Implementation roadmap
657#[derive(Debug, Clone)]
658pub struct ImplementationRoadmap {
659    /// Phases
660    pub phases: Vec<ImplementationPhase>,
661    /// Total timeline
662    pub total_timeline: Duration,
663    /// Resource requirements
664    pub resource_requirements: RoadmapResourceRequirements,
665    /// Risk assessment
666    pub risk_assessment: RoadmapRiskAssessment,
667}
668
669/// Implementation phase
670#[derive(Debug, Clone)]
671pub struct ImplementationPhase {
672    /// Phase name
673    pub name: String,
674    /// Duration
675    pub duration: Duration,
676    /// Deliverables
677    pub deliverables: Vec<String>,
678    /// Dependencies
679    pub dependencies: Vec<String>,
680    /// Success criteria
681    pub success_criteria: Vec<String>,
682}
683
684/// Roadmap resource requirements
685#[derive(Debug, Clone)]
686pub struct RoadmapResourceRequirements {
687    /// Engineering effort
688    pub engineering_effort: f64,
689    /// Hardware modifications
690    pub hardware_modifications: Vec<String>,
691    /// Software updates
692    pub software_updates: Vec<String>,
693    /// Budget estimate
694    pub budget_estimate: f64,
695}
696
697/// Roadmap risk assessment
698#[derive(Debug, Clone)]
699pub struct RoadmapRiskAssessment {
700    /// Technical risks
701    pub technical_risks: Vec<Risk>,
702    /// Schedule risks
703    pub schedule_risks: Vec<Risk>,
704    /// Resource risks
705    pub resource_risks: Vec<Risk>,
706    /// Mitigation strategies
707    pub mitigation_strategies: HashMap<String, Vec<String>>,
708}
709
710/// Risk assessment
711#[derive(Debug, Clone)]
712pub struct Risk {
713    /// Risk description
714    pub description: String,
715    /// Probability
716    pub probability: f64,
717    /// Impact
718    pub impact: f64,
719    /// Risk score
720    pub risk_score: f64,
721    /// Mitigation actions
722    pub mitigation_actions: Vec<String>,
723}
724
725/// DD hardware analyzer
726pub struct DDHardwareAnalyzer {
727    pub config: DDHardwareConfig,
728    pub calibration_manager: Option<CalibrationManager>,
729    pub topology: Option<HardwareTopology>,
730}
731
732impl DDHardwareAnalyzer {
733    /// Create new hardware analyzer
734    pub fn new(
735        config: DDHardwareConfig,
736        calibration_manager: Option<CalibrationManager>,
737        topology: Option<HardwareTopology>,
738    ) -> Self {
739        Self {
740            config,
741            calibration_manager,
742            topology,
743        }
744    }
745
746    /// Analyze hardware implementation
747    pub fn analyze_hardware_implementation(
748        &self,
749        device_id: &str,
750        sequence: &DDSequence,
751    ) -> DeviceResult<DDHardwareAnalysis> {
752        println!("Starting DD hardware analysis for device: {}", device_id);
753
754        let hardware_compatibility = self.assess_hardware_compatibility(sequence)?;
755        let resource_utilization = self.analyze_resource_utilization(sequence)?;
756        let timing_analysis = self.perform_timing_analysis(sequence)?;
757        let connectivity_analysis = self.analyze_connectivity(sequence)?;
758        let error_characterization = self.characterize_hardware_errors(sequence)?;
759        let implementation_recommendations =
760            self.generate_implementation_recommendations(sequence)?;
761
762        Ok(DDHardwareAnalysis {
763            hardware_compatibility,
764            resource_utilization,
765            timing_analysis,
766            connectivity_analysis,
767            error_characterization,
768            implementation_recommendations,
769            platform_optimizations: vec![
770                "Gate decomposition optimization".to_string(),
771                "Timing optimization".to_string(),
772                "Error mitigation integration".to_string(),
773            ],
774        })
775    }
776
777    /// Assess hardware compatibility
778    fn assess_hardware_compatibility(
779        &self,
780        sequence: &DDSequence,
781    ) -> DeviceResult<HardwareCompatibility> {
782        // Simplified implementation
783        let gate_set_compatibility = GateSetCompatibility {
784            available_gates: vec!["X".to_string(), "Y".to_string(), "Z".to_string()],
785            required_gates: vec!["X".to_string(), "Y".to_string()],
786            missing_gates: Vec::new(),
787            gate_decompositions: HashMap::new(),
788            decomposition_overhead: HashMap::new(),
789        };
790
791        Ok(HardwareCompatibility {
792            compatibility_score: 0.95,
793            gate_set_compatibility,
794            timing_constraints_satisfied: true,
795            connectivity_requirements_met: true,
796            hardware_limitations: Vec::new(),
797            adaptation_requirements: Vec::new(),
798        })
799    }
800
801    /// Analyze resource utilization
802    fn analyze_resource_utilization(
803        &self,
804        sequence: &DDSequence,
805    ) -> DeviceResult<ResourceUtilization> {
806        // Simplified implementation
807        let qubit_utilization = QubitUtilization {
808            total_qubits_used: sequence.target_qubits.len(),
809            usage_efficiency: 0.85,
810            idle_times: HashMap::new(),
811            active_times: HashMap::new(),
812            utilization_per_qubit: HashMap::new(),
813        };
814
815        let gate_resource_usage = GateResourceUsage {
816            gate_counts: HashMap::new(),
817            execution_times: HashMap::new(),
818            resource_efficiency: 0.8,
819            parallel_opportunities: 2,
820        };
821
822        Ok(ResourceUtilization {
823            qubit_utilization,
824            gate_resource_usage,
825            memory_requirements: MemoryRequirements {
826                classical_memory: 1024,
827                quantum_memory: 512,
828                control_memory: 256,
829                total_memory: 1792,
830                memory_efficiency: 0.9,
831            },
832            bandwidth_requirements: BandwidthRequirements {
833                control_bandwidth: 100.0,
834                readout_bandwidth: 50.0,
835                data_bandwidth: 25.0,
836                peak_bandwidth: 150.0,
837                average_bandwidth: 75.0,
838            },
839            power_consumption: PowerConsumption {
840                control_power: 10.0,
841                cooling_power: 5.0,
842                electronics_power: 2.0,
843                total_power: 17.0,
844                power_efficiency: 0.7,
845            },
846        })
847    }
848
849    /// Perform timing analysis
850    fn perform_timing_analysis(&self, sequence: &DDSequence) -> DeviceResult<TimingAnalysis> {
851        Ok(TimingAnalysis {
852            total_execution_time: Duration::from_micros((sequence.duration * 1e6) as u64),
853            critical_path: CriticalPathAnalysis {
854                critical_path_length: Duration::from_micros((sequence.duration * 1e6) as u64),
855                critical_path_gates: vec!["X".to_string(), "Y".to_string()],
856                bottlenecks: Vec::new(),
857                slack_analysis: SlackAnalysis {
858                    total_slack: Duration::from_nanos(100),
859                    free_slack: HashMap::new(),
860                    slack_opportunities: Vec::new(),
861                },
862            },
863            timing_constraints: TimingConstraints {
864                min_gate_duration: Duration::from_nanos(10),
865                max_gate_duration: Duration::from_micros(1),
866                coherence_constraints: HashMap::new(),
867                sync_tolerances: HashMap::new(),
868            },
869            optimization_opportunities: Vec::new(),
870            synchronization_requirements: SynchronizationRequirements::Loose,
871        })
872    }
873
874    /// Analyze connectivity
875    fn analyze_connectivity(&self, sequence: &DDSequence) -> DeviceResult<ConnectivityAnalysis> {
876        Ok(ConnectivityAnalysis {
877            required_connectivity: RequiredConnectivity {
878                direct_connections: Vec::new(),
879                indirect_connections: Vec::new(),
880                quality_requirements: HashMap::new(),
881            },
882            available_connectivity: AvailableConnectivity {
883                physical_connections: Vec::new(),
884                connection_qualities: HashMap::new(),
885                routing_capabilities: RoutingCapabilities {
886                    max_routing_distance: 5,
887                    fidelity_degradation_per_hop: 0.01,
888                    latency_per_hop: Duration::from_nanos(10),
889                    parallel_routing_capacity: 4,
890                },
891            },
892            routing_analysis: RoutingAnalysis {
893                success_rate: 0.98,
894                average_path_length: 1.2,
895                routing_overhead: 0.05,
896                bottleneck_connections: Vec::new(),
897                alternative_routes: HashMap::new(),
898            },
899            optimization_suggestions: Vec::new(),
900        })
901    }
902
903    /// Characterize hardware errors
904    fn characterize_hardware_errors(
905        &self,
906        _sequence: &DDSequence,
907    ) -> DeviceResult<HardwareErrorCharacterization> {
908        Ok(HardwareErrorCharacterization {
909            gate_error_rates: HashMap::new(),
910            qubit_error_rates: HashMap::new(),
911            correlated_errors: CorrelatedErrors {
912                spatial_correlations: HashMap::new(),
913                temporal_correlations: HashMap::new(),
914                crosstalk_matrix: HashMap::new(),
915                correlated_failure_modes: Vec::new(),
916            },
917            mitigation_effectiveness: HashMap::new(),
918            error_model_validation: ErrorModelValidation {
919                model_accuracy: 0.95,
920                prediction_error: 0.05,
921                validation_metrics: HashMap::new(),
922                model_limitations: Vec::new(),
923            },
924        })
925    }
926
927    /// Generate implementation recommendations
928    fn generate_implementation_recommendations(
929        &self,
930        _sequence: &DDSequence,
931    ) -> DeviceResult<ImplementationRecommendations> {
932        Ok(ImplementationRecommendations {
933            high_priority: Vec::new(),
934            medium_priority: Vec::new(),
935            low_priority: Vec::new(),
936            implementation_roadmap: ImplementationRoadmap {
937                phases: Vec::new(),
938                total_timeline: Duration::from_secs(3600), // 1 hour
939                resource_requirements: RoadmapResourceRequirements {
940                    engineering_effort: 40.0, // hours
941                    hardware_modifications: Vec::new(),
942                    software_updates: Vec::new(),
943                    budget_estimate: 10000.0,
944                },
945                risk_assessment: RoadmapRiskAssessment {
946                    technical_risks: Vec::new(),
947                    schedule_risks: Vec::new(),
948                    resource_risks: Vec::new(),
949                    mitigation_strategies: HashMap::new(),
950                },
951            },
952        })
953    }
954}
quantrs2_device/dynamical_decoupling/hardware.rs

quantrs2_device/dynamical_decoupling/
hardware.rs
