Difference between revisions of "Rydmr.m"

From Spinach Documentation Wiki
Jump to: navigation, search
(Update function See also links and function index membership)
 
(8 intermediate revisions by 2 users not shown)
Line 1: Line 1:
Singlet-singlet RYDMR experiment with exponential recombination function (http://dx.doi.org/10.1080/00268979809483134). Syntax:
+
{{DISPLAYTITLE:rydmr.m}} __NOTOC__
 +
Singlet-singlet RYDMR experiment. This is a spin chemistry experiment involving a radical pair. See http://dx.doi.org/10.1080/00268979809483134 for a detailed description. This function uses the full kinetics superoperator and computes the singlet yield of a radical pair recombination reaction.
  
              A=rydmr(spin_system,parameters,H,R,K)
+
==Syntax==
  
where H is the Hamiltonian commutation superoperator in zero external field, R is the relaxation superoperator and K is the chemical kinetics superoperator. The following parameters are required:
+
    A=rydmr(spin_system,parameters,H,R,K)
  
parameters.fields    -  row vector of field values, Tesla
+
==Parameters==
  
parameters.rates      -   row vector of singlet recombination
+
    parameters.tol    - BICG solver tolerance,
                           rate constants, Hz
+
                           1e-2 is generally good
  
parameters.electrons  -  numbers identifying the two electrons
+
==Outputs==
                          in the isotope list, e.g. [1 2]
+
 
 +
    A - fractional singlet yield
 +
 
 +
==Examples==
 +
See examples/spin_chemistry directory.
 +
 
 +
==Notes==
 +
# This function runs much faster on Tesla GPUs: add 'gpu' to sys.enable cell array.
 +
# For a simplified (and much faster) exponential recombination kinetics model, see [[rydmr_exp.m]] function.
 +
 
 +
==See also==
 +
[[rydmr_exp.m]], [[zerofield.m]], [[zulf_abrupt.m]], [[Built-in_experiments]]
 +
 
 +
''Version 2.2, authors: [[Hannah Hogben]], [[Peter Hore]], [[Ilya Kuprov]]''

Latest revision as of 19:41, 6 June 2026

Singlet-singlet RYDMR experiment. This is a spin chemistry experiment involving a radical pair. See http://dx.doi.org/10.1080/00268979809483134 for a detailed description. This function uses the full kinetics superoperator and computes the singlet yield of a radical pair recombination reaction.

Syntax

    A=rydmr(spin_system,parameters,H,R,K)

Parameters

    parameters.tol     -  BICG solver tolerance,
                          1e-2 is generally good

Outputs

    A - fractional singlet yield

Examples

See examples/spin_chemistry directory.

Notes

  1. This function runs much faster on Tesla GPUs: add 'gpu' to sys.enable cell array.
  2. For a simplified (and much faster) exponential recombination kinetics model, see rydmr_exp.m function.

See also

rydmr_exp.m, zerofield.m, zulf_abrupt.m, Built-in_experiments

Version 2.2, authors: Hannah Hogben, Peter Hore, Ilya Kuprov