Advanced Rust quantum computer simulator.
Quantum is a quantum computer simulator written with the following design goals in mind:
1) Utility: we can simulate a 5-qubit register, enough to run interesting algorithms.
2) Efficiency: we implement all important operations from scratch using primitives
3) Educational Value: the documentation is a prose description of how to implement a quantum computer in Rust.
4) Correctness: it's entirely written in safe Rust with well-defined states.
A good place to start reading the theory behind this is the Wikipedia article, and you can follow the documentation for our implementations of gates, kets, common operations, and quantum registers.
```toml
[dependencies] quantum2 = "0.1.3" ```
```rust // main.rs
use computer::QuantumComputer; use algorithms::deutsch; use gates;
fn main() { // Let's do something simple of a 3-qubit system. let mut c1 = QuantumComputer::new(3); c1.initialize(5); c1.apply(gates::identity(3)); c1.collapse(); assert_eq!(5, c1.value());
// Now let's perform a coin flip using the Hadamard transform.
let mut c2 = QuantumComputer::new(1);
c2.initialize(0);
c2.apply(gates::hadamard(1));
c2.collapse();
let result = if 1 == c2.value() { "heads" } else { "tails" };
println!("coin flip: {}", result);
// Finally let's determine whether f: {0, 1} -> {0, 1} is constant
// or balanced using Deutsch's algorithm.
// (see http://physics.stackexchange.com/q/3400)
let mut c3 = QuantumComputer::new(2);
c3.initialize(1);
c3.apply(gates::hadamard(2));
c3.apply(deutsch::deutsch_gate(f));
c3.apply(gates::hadamard(2));
c3.collapse();
let result = if 1 == c3.value() { "constant" } else { "balanced" };
println!("f is: {}", result);
} ```
We provide the following quantum gates:
rust test