Difference between revisions of "Centrans.m"

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     A = centrans(mult,type)
 
     A = centrans(mult,type)
  
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==Arguments==
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==Parameters==
  
 
     mult    - multiplicity of the spin (even positive integer)
 
     mult    - multiplicity of the spin (even positive integer)
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==See also==
 
==See also==
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[[Kernel_functions#Elementary_operators|Elementary operators]]
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[[bos2ist.m]], [[boson_mono.m]], [[boson_ortho.m]], [[ct2ist.m]], [[enlev2bm.m]], [[enlev2ist.m]], [[hamiltonian.m]], [[kinetics.m]], [[lindbladian.m]], [[oper2bm.m]], [[oper2ist.m]], [[operator.m]], [[orientation.m]], [[propagator.m]], [[relaxation.m]], [[sin_tran.m]], [[weyl.m]], [[Kernel_functions]]
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''Version 2.11, authors: [[Ilya Kuprov]]''
 
''Version 2.11, authors: [[Ilya Kuprov]]''

Latest revision as of 19:35, 6 June 2026

Central transition operator for half-integer spins expressed in the Pauli basis.

Syntax

    A = centrans(mult,type)

Parameters

    mult     - multiplicity of the spin (even positive integer)

    type     - operator type: 'x' for Sx, 'y' for Sy,
                'z' for Sz, '+' for raising, '-' for lowering

Outputs

    A        - sparse matrix of the central transition operator

Examples

A central transition raising operator for a spin-3/2 system:

    A = centrans(4,'+');

Notes

The operator is returned as a complex sparse matrix.

See also

bos2ist.m, boson_mono.m, boson_ortho.m, ct2ist.m, enlev2bm.m, enlev2ist.m, hamiltonian.m, kinetics.m, lindbladian.m, oper2bm.m, oper2ist.m, operator.m, orientation.m, propagator.m, relaxation.m, sin_tran.m, weyl.m, Kernel_functions

Version 2.11, authors: Ilya Kuprov