mapping_variables.f90 File Reference

Modules
module	mapping_variables
	This module contains the necessary functions and subroutines to use the Meyer-Miller mapping model which maps \(|\alpha\rangle \rightarrow \hat{a}_\alpha^\dagger = \frac{1}{\sqrt{2}}(\hat{x}_\alpha - i\hat{p}_\alpha) \).

Functions/Subroutines
subroutine	mapping_variables::initialize_pldm_map
	Allocate the mapping variable arrays for PLDM calculation. More...
subroutine	mapping_variables::finalize_pldm_map
	Deallocate the mapping variable arrays for PLDM calculation. More...
subroutine	mapping_variables::initialize_twa_map
	Allocate the mapping variable arrays for TWA or SQC calculation. More...
subroutine	mapping_variables::finalize_twa_map
	Deallocate the mapping variable arrays for TWA or SQC calculation. More...
subroutine	mapping_variables::sample_pldm_map (x_init, p_init, xt_init, pt_init)
	Sample the initial distribution of mapping variables for PLDM from gaussian distributions. More...
subroutine	mapping_variables::pldm_map_hop (c_f, c_b, x, p, xt, pt, islice)
	Subroutine that takes the current density matrix and uses it for coefficients in a linear combination of new initial Hermite polynomials. More...
subroutine	mapping_variables::sample_twa_map (x_init, p_init)
	Sample the initial distribution of mapping variables for truncated wigner approximation in action-angle variables. More...
complex(dp) function, dimension(nstate, nstate)	mapping_variables::pldm_redmat (x, p, xt, pt)
	Calculate the reduced density matrix using PLDM with the mapping variables from the product of "Hermite polynomials". More...
complex(dp) function, dimension(nstate, nstate)	mapping_variables::twa_redmat (x, p)
	Calculate the reduced density matrix using TWA with the mapping variables. More...
subroutine	mapping_variables::verlet_mapping_variables (x, p, H, dt)
	propagates x and p mapping variables using the Hamiltonian by integrating Hamilton's equations with the Verlet integrator. More...

Variables
real(dp), dimension(:), allocatable	mapping_variables::x_map
real(dp), dimension(:), allocatable	mapping_variables::p_map
real(dp), dimension(:), allocatable	mapping_variables::xt_map
real(dp), dimension(:), allocatable	mapping_variables::pt_map
complex(dp)	mapping_variables::prod
complex(dp)	mapping_variables::weight_f
complex(dp)	mapping_variables::weight_b