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DO NOT USE THIS TAG just because your question involves math! If your question is on simplification of a mathematical expression, please ask it at math.stackexchange.com. Mathematical physics is the mathematically rigorous study of the foundations of physics, and the application of advanced mathematical methods to problems in physics. Examples include partial differential equations (PDEs), variational calculus, functional analysis, and potential theory.

2
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So just to extend my comment as an answer: Consider a two-body Hamiltonian $h$ defined on $\mathbb{C}^d \otimes \mathbb{C}^d$, it can always be expanded as $h=\sum_p A^{(p)} \otimes B^{(p)}$, where $A …
answered Jun 30 by Zoltan Zimboras
7
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One of your questions was whether there exists a use of the Grassmann number apparatus in statistical physics. The answer is yes. This is not surprising since there are many deep connections between Q …
answered Feb 11 '11 by Zoltan Zimboras