def create_laser(s_name, l):
if s_name != 'PCS':
s = lasers[s_name](l, n_max)
else:
s = laser.PCS(l, n_max, rs=(0.4, 0.4))
# s = laser.PCS(l, n_max, rs=(0.2, 0.9))
return s
def __create_laser(self, name, l, rs=False):
"""
Setup the entangled laser source for detection
"""
laser = None
if name == 'TMSS':
laser = l2m.TMSS(l, self.n_max)
elif name == 'PS':
laser = l2m.PS(l, self.n_max)
elif name == 'PA':
laser = l2m.PA(l, self.n_max)
elif name == 'PSA':
laser = l2m.PSA(l, self.n_max)
elif name == 'PAS':
laser = l2m.PAS(l, self.n_max)
elif name == "PCS":
laser = l2m.PCS(l, self.n_max, rs)
return laser
def create_laser(s_name, l):
if s_name != 'PCS':
s = lasers[s_name](l, n_max)
else:
res = minimize(etgl_asym,
np.array([0.2, 0.85]),
args=(l, n_max),
method='L-BFGS-B',
bounds=[(0, 1), (0, 1)])
res2 = minimize(etgl_asym,
np.array([0.3, 0.3]),
args=(l, n_max),
method='L-BFGS-B',
bounds=[(0, 1), (0, 1)])
if res2.fun < res.fun:
res = res2
ra, rb = res.x[0], res.x[1]
if (-1e-6 < ra < 1e-6) and (-1e-6 < rb < 1e-6):
ra, rb = 1, 1
s = laser.PCS(l, n_max, rs=(ra, rb))
return s
def etgl_asym(r, l, n_max):
state = laser.PCS(l, n_max, (r[0], r[1]))
return -state.entanglement
def etgl_sym(r, l, n_max):
# print(r)
state = laser.PCS(l, n_max, (r[0], r[0]))
return -state.entanglement
def create_laser(l, rs):
s = laser.PCS(l, n_max, rs=rs)
# s = laser.PCS(l, n_max, rs=(0.2, 0.9))
return s