Difference between revisions of "Rlx scalar.m"

From Spinach Documentation Wiki
Jump to: navigation, search
m (Move Description section into pre-Syntax prose)
m (Polish opening prose above Syntax section)
Line 1: Line 1:
 
{{DISPLAYTITLE:rlx_scalar.m}} __NOTOC__
 
{{DISPLAYTITLE:rlx_scalar.m}} __NOTOC__
Scalar relaxation superoperator using Redfield theory.
+
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.
 
 
Computes Redfield superoperator in situations when the system has a static background Hamiltonian and a perturbation with a scalar stochastic function in front of it. Scalar hyperfine relaxation is a common example. This function is called by Spinach relaxation theory module, but may also be invoked directly.
 
  
 
==Syntax==
 
==Syntax==

Revision as of 19:16, 5 June 2026

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

Version 2.1, authors: Ilya Kuprov