Struct VidalMPO 

pub struct VidalMPO<T: TTScalar> { /* private fields */ }

Vidal canonical form of MPO

The Vidal form represents the MPO as: O = Gamma[1] * Lambda[1] * Gamma[2] * Lambda[2] * … * Gamma[L]

where Gamma[i] are tensors and Lambda[i] are diagonal matrices of singular values.

Implementations

impl<T: TTScalar> VidalMPO<T>

pub fn from_mpo(_mpo: MPO<T>) -> Result<Self>

Create a VidalMPO from an MPO

pub fn len(&self) -> usize

Get the number of sites

pub fn is_empty(&self) -> bool

Check if empty

pub fn gamma(&self, i: usize) -> &Tensor4<T>

Get the Gamma tensor at position i

pub fn gamma_mut(&mut self, i: usize) -> &mut Tensor4<T>

Get mutable reference to the Gamma tensor at position i

pub fn gammas(&self) -> &[Tensor4<T>]

Get all Gamma tensors

pub fn lambda(&self, i: usize) -> &[f64]

Get the Lambda vector at bond i (between sites i and i+1)

pub fn lambdas(&self) -> &[Vec<f64>]

Get all Lambda vectors

pub fn link_dims(&self) -> Vec<usize>

Bond dimensions

pub fn site_dims(&self) -> Vec<(usize, usize)>

Site dimensions

pub fn rank(&self) -> usize

Maximum bond dimension

pub fn into_mpo(self) -> Result<MPO<T>>

Convert to basic MPO

Trait Implementations

impl<T: Clone + TTScalar> Clone for VidalMPO<T>

fn clone(&self) -> VidalMPO<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + TTScalar> Debug for VidalMPO<T>

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

Formats the value using the given formatter.