tlquantum.tt_gates.SO4LR
- class tlquantum.tt_gates.SO4LR(state1, state2, position, theta=None, dtype=torch.complex64, device=None)[source]
Left or right core of the two-qubit SO4 rotations gate.
- Parameters:
- state1int, the first of 4 quantum states to undergo the 2-qubit rotations
- state2int, the second of 4 quantum states to undergo the 2-qubit rotations
- positionint, if 0, then left core, if 1, then right core.
- devicestring, device on which to run the computation.
- Returns:
- if position == 0 –> SO4L
- if position == 1 –> SO4R
Methods
forward()Prepares the left or right qubit of the SO4 two-qubit rotation gate for forward contraction by calling the forward method and preparing the tt-factorized form of matrix representation.
reinitialize
- forward()[source]
Prepares the left or right qubit of the SO4 two-qubit rotation gate for forward contraction by calling the forward method and preparing the tt-factorized form of matrix representation. Update is based on theta (which is typically updated every epoch through backprop via Pytorch Autograd).
- Returns:
- Gate tensor for general forward pass.