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 or spinful fermion systems.

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