sf.physics.gaussian.mz_symplectic

mrmustard.physics.gaussian.mz_symplectic(phi_a, phi_b, internal=False)

Symplectic matrix of a Mach-Zehnder gate.

It supports two conventions:

• if internal=True, both phases act inside the interferometer:

  phi_a on the upper arm, phi_b on the lower arm;

• if internal = False (default), both phases act on the upper arm:

  phi_a before the first BS, phi_b after the first BS.

Parameters:

• phi_a (float) – first phase

• phi_b (float) – second phase

• internal (bool) – whether phases are in the internal arms (default is False)

Returns:

symplectic (orthogonal) matrix of a Mach-Zehnder interferometer

Return type:

Matrix

code/api/mrmustard.physics.gaussian.mz_symplectic

 

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