From 913c837f4e30734f47372ab563d6cc3ee89f0f17 Mon Sep 17 00:00:00 2001 From: Blaise Thompson Date: Thu, 10 Aug 2017 18:47:11 -0500 Subject: initial commit --- .../src/H0.py | 171 +++++++++++++++++++++ 1 file changed, 171 insertions(+) create mode 100644 figures/instrument/scatter/2016.05.02 16-33-15 current delay space/src/H0.py (limited to 'figures/instrument/scatter/2016.05.02 16-33-15 current delay space/src/H0.py') diff --git a/figures/instrument/scatter/2016.05.02 16-33-15 current delay space/src/H0.py b/figures/instrument/scatter/2016.05.02 16-33-15 current delay space/src/H0.py new file mode 100644 index 0000000..e040203 --- /dev/null +++ b/figures/instrument/scatter/2016.05.02 16-33-15 current delay space/src/H0.py @@ -0,0 +1,171 @@ +""" +@author: Dan + +each instance of running this depends on a few initial conditions that have to +be specified: + out_group + rho_0 + wa_central + a_coupling + gamma + dipoles + +so create a class where all these can describe the specific instance +""" + +from NISE.lib.misc import * + +def gen_w_0(wa_central, a_coupling): + # convert nice system parameters into system vector indeces + w_ag = wa_central + w_2aa = w_ag - a_coupling + w_2ag = 2*w_ag - a_coupling + w_gg = 0. + w_aa = w_gg + return np.array( [w_gg, w_ag, -w_ag, w_aa, w_2ag, w_ag, w_2aa] ) + +def gen_Gamma_0(tau_ag, tau_aa, tau_2ag, tau_2aa): + # same as gen_w_0, but for dephasing/relaxation times + tau = np.array( [np.inf, tau_ag, tau_ag, + tau_aa, tau_2ag, + tau_ag, tau_2aa ] ) + Gamma = 1/tau + return Gamma + +class Omega: + # record the propagator module used to evolve this hamiltonian + propagator = 'rk' + # phase cycling is not valuable in this hamiltonian + pc = False + # all attributes should have good initial guesses for parameters + dm_vector = ['gg1','ag','ga','aa','2ag','ag2','2aa'] + #out_group = [[6,7]]#,[7]] + out_group = [[5],[6]] # use this to separate alpha/gamma from beta for now + #--------------------------Oscillator Properties-------------------------- + rho_0 = np.zeros((len(dm_vector)), dtype=np.complex64) + rho_0[0] = 1. + # 1S exciton central position + wa_central = 7000. + # exciton-exciton coupling + a_coupling = 0. # cm-1 + # dephasing times, fs + tau_ag = 50. + tau_aa = np.inf #1./2000. + tau_2aa = tau_ag + tau_2ag = tau_ag + # transition dipoles (a.u.) + mu_ag = 1.0 + mu_2aa = 1.0 * mu_ag # HO approx (1.414) vs. uncorr. electron approx. (1.) + # TOs sets which time-ordered pathways to include (1-6 for TrEE) + # defaults to include all time-orderings included + TOs = range(7)[1:] + #--------------------------Recorded attributes-------------------------- + out_vars = ['dm_vector', 'out_group', 'rho_0', 'mu_ag', 'mu_2aa', + 'tau_ag', 'tau_aa', 'tau_2aa', 'tau_2ag', + 'wa_central', 'a_coupling', 'pc', 'propagator', + 'TOs'] + #--------------------------Methods-------------------------- + def __init__(self, **kwargs): + # inherit all class attributes unless kwargs has them; then use those + # values. if kwargs is not an Omega attribute, it gets ignored + # careful: don't redefine instance methods as class methods! + for key, value in kwargs.items(): + if key in Omega.__dict__.keys(): + setattr(self, key, value) + else: + print 'did not recognize attribute {0}. No assignment made'.format(key) + # with this set, initialize parameter vectors + self.w_0 = gen_w_0(self.wa_central, self.a_coupling) + self.Gamma = gen_Gamma_0(self.tau_ag, self.tau_aa, self.tau_2ag, + self.tau_2aa) + + def o(self, efields, t, wl): + # combine the two pulse permutations to produce one output array + E1, E2, E3 = efields[0:3] + + out1 = self._gen_matrix(E1, E2, E3, t, wl, w1first = True) + out2 = self._gen_matrix(E1, E2, E3, t, wl, w1first = False) + + return np.array([out1, out2], dtype=np.complex64) + + def _gen_matrix(self, E1, E2, E3, t, wl, w1first = True): + """ + creates the coupling array given the input e-fields values for a specific time, t + w1first selects whether w1 or w2p is the first interacting positive field + + Currently neglecting pathways where w2 and w3 require different frequencies + (all TRIVE space, or DOVE on diagonal) + + Matrix formulated such that dephasing/relaxation is accounted for + outside of the matrix + """ + wag = wl[1] + w2aa = wl[6] + + mu_ag = self.mu_ag + mu_2aa = self.mu_2aa + + if w1first==True: + first = E1 + second = E3 + else: + first = E3 + second = E1 + + O = np.zeros((len(t), len(wl), len(wl)), dtype=np.complex64) + # from gg1 + O[:,1,0] = mu_ag * first * rotor(-wag*t) + if w1first and 3 in self.TOs: + O[:,2,0] = -mu_ag * E2 * rotor(wag*t) + if not w1first and 5 in self.TOs: + O[:,2,0] = -mu_ag * E2 * rotor(wag*t) + # from ag1 + # to DQC + if w1first and 2 in self.TOs: + O[:,4,1] = mu_2aa * second * rotor(-w2aa*t) + if not w1first and 4 in self.TOs: + O[:,4,1] = mu_2aa * second * rotor(-w2aa*t) + # to pop + if w1first and 1 in self.TOs: + O[:,3,1] = -mu_ag * E2 * rotor(wag*t) + if not w1first and 6 in self.TOs: + O[:,3,1] = -mu_ag * E2 * rotor(wag*t) + # from ga + O[:,3,2] = mu_ag * first * rotor(-wag*t) + # from gg-aa + O[:,5,3] = -mu_ag * second * rotor(-wag*t) * mu_ag + # because of alpha and gamma pathways, count twice + O[:,5,3] -= mu_ag * second * rotor(-wag*t) * mu_ag + O[:,6,3] = mu_2aa * second * rotor(-w2aa*t) * mu_2aa + # from 2ag + O[:,6,4] = mu_ag * E2 * rotor(wag*t) * mu_2aa + O[:,5,4] = -mu_2aa * E2 * rotor(w2aa*t) * mu_ag + + # make complex according to Liouville Equation + O *= complex(0,0.5) + + # include coherence decay rates: + for i in range(O.shape[-1]): + O[:,i,i] = -self.Gamma[i] + + return O + + def ws(self, inhom_object): + """ + creates the correspondence of oscillator energies to the state vector + contains instructions for how energies change as subsets are changed + """ + z = inhom_object.zeta + + wg = 0.0 + 0*z + wa = z + self.wa_central + w2a = 2*wa - self.a_coupling + + w_ag = wa - wg + w_aa = wa - wa + w_gg = wg - wg + w_2ag = w2a - wg + w_2aa = w2a - wa + #array aggregates all frequencies to match state vectors + w = np.array( [w_gg, w_ag, -w_ag, w_aa, w_2ag, w_ag, w_2aa] ) + return w -- cgit v1.2.3