relaxation.m

Relaxation superoperator.

Syntax

R=relaxation(spin_system,euler_angles)

Arguments

euler_angles - three Euler angles (ZYZ active convention

                   in radians) specifying system orientation
                   relative to the input orientation; requi-
                   by those theories that support relaxation
                   rate anisotropy. It has no effect on tho-
                   se theories (e.g. Redfield) that do not.

Outputs

R - relaxation superoperator

Notes

1. A variety of relaxation theories are supported, see the relaxation theory parameters section of the online manual.
2. Spinach context functions include kinetics superoperators into the total Liovillian automatically.
3. The function has been written for minimal memory footprint and performs aggressive memory recycling. Relaxation superoperator dimensions in excess of 1,000,000 are in practice feasible.

See also

equilibrium.m, thermalize.m, hamiltonian.m, lindbladian.m, kinetics.m, magpump.m

Version 2.2, authors: Ilya Kuprov, Luke Edwards, Alexander Karabanov, Walter Kockenberger