rlx_scalar.m

Computes a scalar-relaxation superoperator using Redfield theory for cases where the system has a static background Hamiltonian and a perturbation multiplied by a scalar stochastic function, such as scalar hyperfine relaxation; the function is called by the Spinach relaxation theory module and may also be invoked directly.

Syntax

    R=rlx_scalar(spin_system,H0,H1,tau_c_array)

Parameters

    H0 - background Hamiltonian

    H1 - the stochastically modulated interaction operator
         multiplied by its root mean square modulation depth

    tau_c - the correlation time of the stochastic modulation

Outputs

    R  - relaxation superoperator as a negative definite matrix

Notes

If H1(t) has a non-zero average value, it must be subtracted out and put into H0.

See also

relaxation.m, expmint.m, lindbladian.m, rlx_t1_t2.m, adelim.m, blinv.m, blprod.m, corrfun.m, magpump.m, ngce.m, rlx_split.m, sec2kite.m, spden.m, Kernel_utilities

Version 2.1, authors: Ilya Kuprov