tensorcircuit.templates.graphs¶

Some common graphs and lattices

tensorcircuit.templates.graphs.Even1D(n: int, s: int = 0) → Any[source]¶

class tensorcircuit.templates.graphs.Grid2DCoord(n: int, m: int)[source]¶

Bases: object

Two-dimensional grid lattice

__init__(n: int, m: int)[source]¶

Parameters:

n (int) – number of rows
m (int) – number of cols

all_cols(pbc: bool = False) → Sequence[Tuple[int, int]][source]¶

return all col edge with 1d index encoding

Parameters:: pbc (bool, optional) – whether to include pbc edges (periodic boundary condition), defaults to False
Returns:: list of col edge
Return type:: Sequence[Tuple[int, int]]

all_rows(pbc: bool = False) → Sequence[Tuple[int, int]][source]¶

return all row edge with 1d index encoding

Parameters:: pbc (bool, optional) – whether to include pbc edges (periodic boundary condition), defaults to False
Returns:: list of row edge
Return type:: Sequence[Tuple[int, int]]

lattice_graph(pbc: bool = True) → Any[source]¶

Get the 2D grid lattice in nx.Graph format

Parameters:: pbc (bool, optional) – whether to include pbc edges (periodic boundary condition), defaults to True
Returns:: _description_
Return type:: Graph

one2two(i: int) → Tuple[int, int][source]¶

two2one(x: int, y: int) → int[source]¶

tensorcircuit.templates.graphs.Line1D(n: int, node_weight: Sequence[float] | None = None, edge_weight: Sequence[float] | None = None, pbc: bool = True) → Any[source]¶

1D chain with n sites

Parameters:

n (int) – [description]
pbc (bool, optional) – [description], defaults to True

Returns:

[description]

Return type:

Graph

tensorcircuit.templates.graphs.Odd1D(n: int, *, s: int = 1) → Any¶