Expand description
Libket Quantum Programming Library
The Libket library provides a set of tools for quantum programming in Rust. It serves as the runtime library for the Python-embedded quantum programming language Ket.
Note: For more information about the Ket programming language, please visit https://quantumket.org.
Usage
To use this library, add the following line to your Cargo.toml
file:
[dependencies]
libket = "0.3.1"
Additionally, you may need to include the following dependencies for quantum code serialization/deserialization and the KBW quantum computer simulator:
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"
kbw = "0.1.6"
Examples
The following example demonstrates the implementation of Grover’s algorithm using Libket:
use ket::*;
fn main() -> Result<()> {
let n = 4; // Number of qubits
let p = Process::new_ptr(); // Create a new quantum process
let mut qubits = Quant::new(&p, n)?; // Create a quantum register with `n` qubits
h(&qubits)?; // Apply Hadamard gate to all qubits
let steps = (std::f64::consts::PI / 4.0 * f64::sqrt((1 << n) as f64)) as i32; // Calculate the number of steps for the Grover's algorithm
for _ in 0..steps {
ctrl(&qubits.slice(1..), || z(&qubits.at(0)))??; // Apply controlled-Z gate with the first qubit as the target and the rest as controls
around(
&p,
|| {
h(&qubits).unwrap(); // Apply Hadamard gate to all qubits
x(&qubits).unwrap(); // Apply Pauli-X gate to all qubits
},
|| ctrl(&qubits.slice(1..), || z(&qubits.at(0))), // Apply controlled-Z gate with the first qubit as the target and the rest as controls
)???;
}
let _ = measure(&mut qubits)?; // Perform measurement on the qubits
let mut p = p.borrow_mut();
p.prepare_for_execution()?; // Prepare the quantum program for execution
println!("{:#?}", p.blocks()); // Print the blocks of the quantum program
Ok(())
}
The example demonstrates the usage of various Libket functions to implement Grover’s algorithm, including qubit initialization, gate operations, control structures, and measurement.
For more examples, refer to the Libket Git repository https://gitlab.com/quantum-ket/libket.
Re-exports
pub use gates::*;
pub use instruction::*;
pub use object::*;
pub use process::*;
Modules
- FFI Wrapper
- Quantum Gates
- Quantum Types
- Quantum Process