Commutators with boson operators
- To: mathgroup at smc.vnet.net
- Subject: [mg97769] Commutators with boson operators
- From: Volodymyr <ktpist at ukr.net>
- Date: Sat, 21 Mar 2009 05:16:41 -0500 (EST)
I need some help.
I want to write code that Mathematica would calculate commutators [A,B], [A,[B,C]] and so on...,
where A,B,C,D,... are functions like
A = a+ b*creat + c*annih + d*creat**annih + e*annih**creat + f*creat^2+g*annih^2+...
where a,b,c,d,... are usual complex numbers;
and annih & creat are boson noncommutative operators
that satisfy commutation relation:
[annih, creat] = 1.
Thank you in advance!
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