Struct quantum2::other::qubit::NonEntangledQubit

pub struct NonEntangledQubit { /* fields omitted */ }

Represents a single (pure, not entangled) qubit state of the form a|0> + b|1>.

The qubit is the linear superposition of the computational basis of |0>_ and _|1>.

We encode the complex coeffients as tuples of their real and imaginary parts, each represented as a 64-bit floating points. This gives high accuracy, while allowing word-size arithmetic on 64-bit systems.

The theoretical state should always satisfy the equations:

• a = a_re + i * a_im
• b = b_re + i * b_im
• 1 = |a|^2+ |b|^2

This representation of that state should approximately satisfy them, subject to floating point imprecision.

Methods

impl NonEntangledQubit

pub fn new(a_re: f64, a_im: f64, b_re: f64, b_im: f64) -> NonEntangledQubit

Safely construct a qubit, given the real and imaginary parts of both coefficients.

This function validates that the given state is possible.

pub fn validate(&self) -> bool

Validate that this qubit's state is possible.

In our imperfect floating point model, this means computing |a|^2+ |b|^2 and comparing it to 1 with some leeway.

That leeway is arbitrarily chosen as 10 units of least precision.

Trait Implementations

impl Clone for NonEntangledQubit

fn clone(&self) -> NonEntangledQubit

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for NonEntangledQubit

impl Debug for NonEntangledQubit

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.