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2015 | 3 | 1 |
Tytuł artykułu

Another formulation of the Wick’s theorem. Farewell, pairing?

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The 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.
Twórcy
  • Institute of Applied Physics, Academy of Sciences of Moldova, 5 Academy Str., Kishinev, 2028, Republic of
    Moldova
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.doi-10_1515_spma-2015-0015
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