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SixJSymbol

SixJSymbol
gives the values of the Racah 6- symbol.
MORE INFORMATION
  • The 6- symbols vanish except when certain triples of the satisfy triangle inequalities.
  • The parameters of SixJSymbol can be integers, half-integers or symbolic expressions.
EXAMPLESCLOSE ALL
Basic Examples   (2)
Use symbolic arguments to obtain exact symbolic answers:
In[1]:=
Click for copyable input
Out[1]=
 
Use symbolic arguments to obtain exact symbolic answers:
In[1]:=
Click for copyable input
Out[1]=
Scope   (2)
SixJSymbol works with integer and half-integer arguments:
TraditionalForm formatting:
Applications   (2)
Plot 6- symbol coefficients as a function of and :
Confirm the Wigner formula for the asymptotic value of SixJSymbol:
Properties & Relations   (2)
Generate a 6-j symbol from a generating function:
Express through Clebsch-Gordan coefficients:
Possible Issues   (1)
A message is issued and the result 0 returned for unphysical cases:
New in 2
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