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Zapiski Nauchnykh Seminarov POMI, 1995, Volume 224, Pages 300–309 (Mi znsl4450)  
Effective action and collective bose-excitations in the $t$-$J$-model

V. N. Popov, P. A. Sevastianov

St. Petersburg Department of V. A. Steklov Institute of Mathematics, Russian Academy of Sciences
Full-text PDF (430 kB)
Abstract: The two-dimensional ($2D$) $t$-$T$-model is investigated using the functional integration method. The effective action is obtained, and the spectrum of collective Bose-excitations in the superconductive phase of the system is calculated both in the phase-transition vicinity (Ginsburg–Landau region $|T-T_c|\ll T_c$) and in the low-temperature region $T\ll T_c$. Bibliography: 26 titles.
Received: 01.10.1994
English version:
Journal of Mathematical Sciences (New York), 1998, Volume 88, Issue 2, Pages 306–312
DOI: https://doi.org/10.1007/BF02364992
Bibliographic databases:
Document Type: Article
UDC: 536.7
Language: Russian
Citation: V. N. Popov, P. A. Sevastianov, “Effective action and collective bose-excitations in the $t$-$J$-model”, Questions of quantum field theory and statistical physics. Part 13, Zap. Nauchn. Sem. POMI, 224, POMI, St. Petersburg, 1995, 300–309; J. Math. Sci. (New York), 88:2 (1998), 306–312
Citation in format AMSBIB
\Bibitem{PopSev95}
\by V.~N.~Popov, P.~A.~Sevastianov
\paper Effective action and collective bose-excitations in the $t$-$J$-model
\inbook Questions of quantum field theory and statistical physics. Part~13
\serial Zap. Nauchn. Sem. POMI
\yr 1995
\vol 224
\pages 300--309
\publ POMI
\publaddr St.~Petersburg
\mathnet{http://mi.mathnet.ru/znsl4450}
\mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=1364856}
\zmath{https://zbmath.org/?q=an:0899.60094|0887.60092}
\transl
\jour J. Math. Sci. (New York)
\yr 1998
\vol 88
\issue 2
\pages 306--312
\crossref{https://doi.org/10.1007/BF02364992}
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