Abstract
AbstractThe algebraic formulation of Wick’s theorem that allows one to present the vacuum or thermal averages of the chronological product of an arbitrary number of field operators as a determinant (permanent) of the matrix is proposed. Each element of the matrix is the average of the chronological product of only two operators. This formulation is extremely convenient for practical calculations in quantum field theory, statistical physics, and quantum chemistry by the standard packages of the well known computer algebra systems.
Subject
Geometry and Topology,Algebra and Number Theory
Reference4 articles.
1. Post - Wick theorems for symbolic manipulation of second - quantized expressions in atomic many - body per turbation theory;Derevianko;At Mol Opt Phys,2010
2. xloops automated Feynman diagram calculation;Brücher;Comput Phys Commun,1998
3. III The automated solution of second quantization equations with applications to the coupled cluster approach;Janssen;Chim Acta,1991
4. Tensor contraction engine : abstraction and automated parallel implementation of configuration - interaction coupled - cluster and many - body perturbation theories;Hirata;Phys Chem A,2003
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