Re: Commutators with boson operators
- To: mathgroup at smc.vnet.net
- Subject: [mg97826] Re: [mg97769] Commutators with boson operators
- From: Filippo Miatto <miatto at gmail.com>
- Date: Sun, 22 Mar 2009 05:51:53 -0500 (EST)
- References: <200903211016.FAA14634@smc.vnet.net>
For the creation and annihilation operators you could use their matrix form, you can find it in The Quantum Theory of Fields Vol. 1 by Weinberg On Mar 21, 2009, at 11:16 AM, Volodymyr wrote: > Hello, > 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! >
- References:
- Commutators with boson operators
- From: Volodymyr <ktpist@ukr.net>
- Commutators with boson operators