sites

sites contains the basic information of the system, including spatial positions and the particle type.

Note

Currently Quantax only supports spin-1/2 systems, spinless fermion systems, and spin-1/2 fermion systems. See PARTICLE_TYPE.

Warning

Unlike other NQS packages, in Quantax the spatial geometry and hilbert space information provided by Sites is a global constant. There should only be one Sites defined in the beginning of a program and kept fixed for the whole program.

Main classes

Sites	A collection of multiple spins or fermions that make up the quantum system.
Lattice	A special kind of Sites with periodic structure in real space.

Common lattices

Grid(extent[, boundary, particle_type, ...])	Grid lattice with basis vectors orthogonal to each other and only 1 site in each unit cell.
Chain(L[, boundary, particle_type, ...])	1D chain lattice.
Square(L[, boundary, particle_type, ...])	2D square lattice.
Cube(L[, boundary, particle_type, ...])	3D cube lattice.
Pyrochlore(extent[, boundary, ...])	Pyrochlore lattice with 4 atoms per unit cell.
Triangular(extent[, boundary, ...])	2D triangular lattice.
TriangularB(extent[, boundary, ...])	2D triangular lattice type B.