mindquantum.core.gates.FSim

mindquantum.core.gates.FSim#

class mindquantum.core.gates.FSim(theta: ParameterResolver, phi: ParameterResolver)#

FSim gate represent fermionic simulation gate.

The matrix is:

\[\begin{split}{\rm FSim}(\theta, \phi) = \begin{pmatrix} 1 & 0 & 0 & 0\\ 0 & \cos(\theta) & -i\sin(\theta) & 0\\ 0 & -i\sin(\theta) & \cos(\theta) & 0\\ 0 & 0 & 0 & e^{-i\phi}\\ \end{pmatrix}\end{split}\]
Parameters:

  • theta (Union[numbers.Number, dict, ParameterResolver]) – First parameter for FSim gate.

  • phi (Union[numbers.Number, dict, ParameterResolver]) – Second parameter for FSim gate.

Examples

>>> from mindquantum.core.gates import FSim
>>> fsim = FSim('a', 'b').on([0, 1])
>>> fsim
FSim(θ=a, φ=b|0 1)
get_cpp_obj()#

Construct cpp obj.

hermitian() → FSim#

Get the hermitian gate of FSim.

Examples

>>> from mindquantum.core.gates import FSim
>>> fsim = FSim('a', 'b').on([0, 1])
>>> fsim.hermitian()
FSim(θ=-a, φ=-b|0 1)
matrix(pr: ParameterResolver = None, full=False) → ndarray#

Get the matrix of FSim.

Parameters:

  • pr (Union[ParameterResolver, dict]) – The parameter of fSim gate. Default: None.

  • full (bool) – Whether to get the full matrix of this gate (the gate should be acted on some qubits). Default: False.

property phi: ParameterResolver#

Get phi parameter of FSim gate.

Returns:

ParameterResolver, the phi.

property theta: ParameterResolver#

Get theta parameter of FSim gate.

Returns:

ParameterResolver, the theta.

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