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The path integral in quantum mechanics. Functional methods and the Green functions. The Wick rotation and the partition sum. The Berezin integral.
Last update: T_UCJF (22.05.2001)
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Složení ústní zkoušky. Last update: Krtička Milan, doc. Mgr., Ph.D. (10.06.2019)
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J. Novotný, Vybrané partie z teorie kvantovaných polí, internetová skripta, http://www-ucjf.troja.mff.cuni.cz/lecture_notes_cz.php R.P. Feynman, A. Hibbs, Quantum mechanics and path integrals (Mc Graw Hill, New York, 1965 F.A. Berezin, The method of second quantization, Academic Press 1966 J. Glimm, A. Jaffe, Quantum physics. A functional point of view, Springer Verlag, New York, 1981 Last update: T_UCJF (19.03.2015)
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Zkouška bude ústní, požadavky odpovídají odpřednášené části sylabu, ev. doplněné o část zadanou k samostatnému nastudování. Last update: Krtička Milan, doc. Mgr., Ph.D. (10.06.2019)
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1. Path integral in quantum mechanics:
definition of path integral, elementary aplications of path integral, discrete approximation and operator ordering problem, Wiener measure, linear harmonic oscilator, gaussian path integrals, linear harmonic oscilator in external field, generatin functionals and Green functions, connected and one partice irreducible Green functions and effective action, physical meaning of the effective action and adiabatic approximation, Wick rotation and finite temperature quantum theory, methods of evaluation of path integrals, perturbation theory, WKB approximation, fermionic degrees of freedom and Berezin integral, gaussian integrals over anticommuting variables Last update: T_UCJF (22.05.2003)
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