def phi_operator(self) -> ndarray:
"""
Returns
-------
Returns the phi operator in the LC harmonic oscillator basis
"""
dimension = self.hilbertdim()
return (op.creation(dimension) +
op.annihilation(dimension)) * self.phi_osc() / math.sqrt(2)
def n_operator(self) -> ndarray:
"""
Returns
-------
Returns the :math:`n = - i d/d\\phi` operator in the LC harmonic oscillator basis
"""
dimension = self.hilbertdim()
return 1j * (op.creation(dimension) - op.annihilation(dimension)) / (
self.phi_osc() * math.sqrt(2))
def creation_operator(self):
"""Returns the creation operator"""
return op.creation(self.truncated_dim)
