quantrs2_core/circuit_synthesis/
qaoatemplate_traits.rs1use super::functions::AlgorithmTemplate;
12use super::types::{
13 AlgorithmSpecification, GateMetadata, ParameterValue, QAOATemplate, QuantumAlgorithmType,
14 ResourceEstimates, SynthesizedCircuit, SynthesizedGate, TemplateInfo,
15};
16use crate::error::{QuantRS2Error, QuantRS2Result};
17use crate::QubitId;
18use std::collections::HashMap;
19use std::time::Duration;
20
21impl AlgorithmTemplate for QAOATemplate {
22 fn synthesize(&self, spec: &AlgorithmSpecification) -> QuantRS2Result<SynthesizedCircuit> {
23 let num_qubits = spec.parameters.num_qubits;
24 let mut gates = Vec::new();
25 for i in 0..num_qubits {
26 gates.push(SynthesizedGate {
27 name: "H".to_string(),
28 qubits: vec![QubitId::new(i as u32)],
29 parameters: vec![],
30 matrix: None,
31 metadata: GateMetadata {
32 layer: 0,
33 purpose: "Initial superposition".to_string(),
34 hints: vec!["single_qubit".to_string()],
35 hardware_preferences: vec!["any".to_string()],
36 },
37 });
38 }
39 self.create_circuit_from_gates(gates, num_qubits, QuantumAlgorithmType::QAOA)
40 }
41 fn estimate_resources(
42 &self,
43 spec: &AlgorithmSpecification,
44 ) -> QuantRS2Result<ResourceEstimates> {
45 let num_qubits = spec.parameters.num_qubits;
46 let p_layers = spec
47 .parameters
48 .algorithm_specific
49 .get("p_layers")
50 .and_then(|v| {
51 if let ParameterValue::Integer(i) = v {
52 Some(*i as usize)
53 } else {
54 None
55 }
56 })
57 .unwrap_or(1);
58 let gate_count = num_qubits + 2 * p_layers * num_qubits;
59 Ok(ResourceEstimates {
60 gate_count,
61 circuit_depth: 1 + 2 * p_layers,
62 qubit_count: num_qubits,
63 gate_breakdown: HashMap::new(),
64 estimated_execution_time: Duration::from_micros((gate_count * 100) as u64),
65 memory_requirements: 1 << num_qubits,
66 parallelization_factor: 0.7,
67 })
68 }
69 fn get_template_info(&self) -> TemplateInfo {
70 TemplateInfo {
71 name: "QAOA".to_string(),
72 supported_parameters: vec![
73 "num_qubits".to_string(),
74 "p_layers".to_string(),
75 "graph".to_string(),
76 ],
77 required_parameters: vec!["num_qubits".to_string()],
78 complexity_scaling: "O(p*m)".to_string(),
79 hardware_compatibility: vec!["all".to_string()],
80 }
81 }
82 fn validate_specification(&self, spec: &AlgorithmSpecification) -> QuantRS2Result<()> {
83 if spec.parameters.num_qubits == 0 {
84 return Err(QuantRS2Error::InvalidParameter(
85 "num_qubits must be > 0".to_string(),
86 ));
87 }
88 Ok(())
89 }
90}