Struct FTCore 

pub struct FTCore { /* private fields */ }

Convenience wrapper for forward/backward Fourier transform.

Caches the forward MPO so that repeated calls to FTCore::forward() and FTCore::backward() avoid redundant MPO construction.

Examples

use tensor4all_quanticstransform::{FTCore, FourierOptions};

let ft = FTCore::new(4, FourierOptions::default()).unwrap();
assert_eq!(ft.r(), 4);

let fwd_op = ft.forward().unwrap();
assert_eq!(fwd_op.mpo.node_count(), 4);

let bwd_op = ft.backward().unwrap();
assert_eq!(bwd_op.mpo.node_count(), 4);

Implementations

impl FTCore

pub fn new(r: usize, options: FourierOptions) -> Result<Self>

Create a new FTCore for r bits.

pub fn forward(&self) -> Result<LinearOperator<TensorDynLen, usize>>

Get the forward Fourier transform operator.

pub fn backward(&self) -> Result<LinearOperator<TensorDynLen, usize>>

Get the backward (inverse) Fourier transform operator.

pub fn r(&self) -> usize

Get the number of bits.

Trait Implementations

impl Clone for FTCore

fn clone(&self) -> FTCore

Returns a duplicate of the value.

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

Performs copy-assignment from source.