Difference between revisions of "Stevens.m"

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{{DISPLAYTITLE:stevens.m}} __NOTOC__
 
{{DISPLAYTITLE:stevens.m}} __NOTOC__
 +
 
Extended Stevens operators.
 
Extended Stevens operators.
  
 
==Syntax==
 
==Syntax==
  
    S=stevens(mult,k,q)
+
S=stevens(mult,k,q)
  
 
==Arguments==
 
==Arguments==
  
  mult - multiplicity of the spin in question
+
mult - multiplicity of the spin in question
 
   
 
   
 
   k    - Stevens operator rank, a non-negative
 
   k    - Stevens operator rank, a non-negative
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==Outputs==
 
==Outputs==
  
  S    - Stevens operator matrix
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S    - Stevens operator matrix
 +
 
 +
Note: for historical reasons, the definition of Stevens operators
 +
      is irregular and must rely on explicitly stockpiled coeffi-
 +
      cients. Only ranks smaller or equal to 12 are available.
 +
 
 +
ilya.kuprov@weizmann.ac.il
 +
e.suturina@soton.ac.uk
  
 
==Notes==
 
==Notes==
 +
 
For historical reasons, the definition of Stevens operators is irregular and must rely on explicitly stockpiled coefficients. Only ranks smaller or equal to 12 are available.
 
For historical reasons, the definition of Stevens operators is irregular and must rely on explicitly stockpiled coefficients. Only ranks smaller or equal to 12 are available.
  
 
==See also==
 
==See also==
 +
 
[[stev2sph.m]], [[irr_sph_ten.m]], [[pauli.m]], [[clebsch_gordan.m]]
 
[[stev2sph.m]], [[irr_sph_ten.m]], [[pauli.m]], [[clebsch_gordan.m]]
  

Revision as of 15:06, 5 April 2026


Extended Stevens operators.

Syntax

S=stevens(mult,k,q)

Arguments

mult - multiplicity of the spin in question

  k    - Stevens operator rank, a non-negative
         integer

  q    - Stevens operator projection, an
         integer between -k and k

Outputs

S - Stevens operator matrix

Note: for historical reasons, the definition of Stevens operators
      is irregular and must rely on explicitly stockpiled coeffi-
      cients. Only ranks smaller or equal to 12 are available.
ilya.kuprov@weizmann.ac.il
e.suturina@soton.ac.uk

Notes

For historical reasons, the definition of Stevens operators is irregular and must rely on explicitly stockpiled coefficients. Only ranks smaller or equal to 12 are available.

See also

stev2sph.m, irr_sph_ten.m, pauli.m, clebsch_gordan.m

SU(2), SO(3), and other groups


Version 2.8, authors: Ilya Kuprov, Elizaveta Suturina