DressedPathway#
- class DressedPathway(leaf, vib_mode, T)[source]#
Bases:
Pathway
,NDResonance
Excitation pathway specialized to a vibrational mode.
- Parameters:
leaf (
rotsim2d.pathways.KetBra
) – Leaf ofrotsim2d.pathways.KetBra
excitation tree.vib_mode (
molspecutils.molecule.VibrationalMode
) – Object implementingmolspecutils.molecule.VibrationalMode
interface.T (
float
) – Temperature in Kelvin.
Attributes
base_params_dict
Vibrational mode associated with this pathway.
Temperature in Kelvin.
The const factor of
Pathway
multiplied by the fractional population of the initial state of the pathway in thermal equilibrium,molspecutils.molecule.VibrationalMode.equilibrium_pop()
, and by the four-fold reduced matrix element, \(\langle \nu_i J_i\|T^{(0)}(\tilde{\mu})\|\nu_i J_i\rangle\):leaf
The leaf used to construct this pathway.
coherences
Coherences created by light-matter interactions.
transitions
Time-ordered transitions between states for the pathway.
js
Arguments for the G-factor.
light_inds
Ordering of polarization vectors in four-fold dipole-operator.
tw_coherence
Whether the molecule is in coherent state after second interaction.
peak
Pair of strings representing coherences created by first and third interaction (2D peak label).
abstract_peak
Same as peak but using P-, Q-, R-branch notation instead of absolute J numbers.
Methods
__init__
(leaf, vib_mode, T)amplitude
([tw, angles])Amplitude of the pathway, given by the product of isotropic coefficient of the initial density matrix, \(\langle T^{(0)}_0(\eta_i J_i)^\dagger\rangle=(2J_i+1)^{-1/2}\),
const
andPathway.geometric_factor()
.from_kb_list
(kb_list, vib_mode, T)Make a list of DressedPathway's from KetBra list.
from_kb_tree
(kb_tree, vib_mode, T)Make a list of DressedPathway's from KetBra tree.
from_params_dict
(params)Make a list of DressedPathway's from dict of parameters.
gamma
(i)Pressure-broadening coefficient of i coherence.
nu
(i)Frequency of i-th coherence.
pprint
([abstract, angles, print])Pretty print this pathway.
pump_fraction
(E12)Fraction of initial population excited by pump pulses.