def __init__(self, L=100.0, W=1.0, eta=0.0, N=2.5, theta=0.0, **base_kwargs):
"""Exceptional Point (EP) waveguide class.
Copies methods and variables from the Base class and adds new
parameters.
Additional parameters:
----------------------
L, W: float
Waveguide length/width
N: float
Number of open modes
eta: float
Dissipation coefficient
theta: float
Phase difference between upper and lower boundary
"""
Base.__init__(self, T=L, **base_kwargs)
self.L = L
self.W = W
self.N = N
self.eta = eta
self.theta = theta
self.k = lambda n: np.sqrt(N**2 - n**2)*np.pi/W
self.kF = N*np.pi/W
def __init__(self, R=0.05, gamma=2.0, **kwargs):
"""Exceptional Points (EP) optomechanics class.
Copies methods and variables from Base class.
Additional parameters:
----------------------
R: float
Trajectory radius around the EP.
gamma: float
Relative loss between states |1> and |2>.
"""
Base.__init__(self, **kwargs)
self.R = R
self.gamma = gamma
self.x_EP = 0.0
self.y_EP = gamma/2.
def __init__(self, **kwargs):
"""Copy methods and variables from Base class."""
Base.__init__(self, **kwargs)
