symmetry

symmetry specifies the symmetry sector of the studied system. It can be used to reduce the cost of exact diagonalization or project wave functions into certain symmetry sectors.

Main class

Symmetry

Symmetry of the system.

Common symmetries

Identity()	Identity (no symmetry).
SpinInverse([eigval])	Spin inverse symmetry for both spin-1/2 and spinful fermion systems.
ParticleHole([eigval])	Particle-hole symmetry for fermion systems.
Translation(vectors[, sector])	Translation symmetry.
TransND([sector])	N-dimensional translation symmetry with unit lattice vectors.
LinearTransform(matrix[, center, sector, ...])	The symmetry generated by a linear transformation to the lattice.
Flip([axis, center, sector])	Flip the lattice in a spatial dimension.
Rotation(angle[, axes, center, sector, ...])	Rotation symmetry.
C4v([center, repr])	C4v symmetry group.
D6([center, repr])	D6 symmetry group.