Titlebook: Collective Effects in Quantum Statistics of Radiation and Matter; V. N. Popov,V. S. Yarunin Book 1988 Kluwer Academic Publishers 1988 elec

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Collective Effects in Quantum Statistics of Radiation and Matter

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Interpretation of Experimental Observations,nd then with respect to the “slow” ones (§2). We develop procedures for deriving the effective (hydrodynamical) action functional. Corresponding to this is the hydrodynamical Hamiltonian which is fundamental and is usually postulated in Landau’s theory of superfluidity. Indeed, it was by this means

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Interpretation of Experimental Observations,ttice, leading to a virtually unimpeded movement in the metal.. This effect can be regarded as a condensation of pairs, while the phenomenon of superconductivity can be regarded as a special kind of superfluidity in a Fermi gas. It turns out that fermions can also combine in pairs at a non-zero tota

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Backup Policies for a Database System,ond question, namely, the behaviour of a two-level system in a given external field, has also been considered in the literature [54], [55]. In §2 this question will be considered within the framework of the functional integration method.

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Functional integrals in quantum theory,ere introduced into quantum mechanics by R. Feynman [19] and have been successfully applied in recent years [6,7,20]. The advantage of the functional integral method is that it enables one to formulate the quasi-classical approximation in a natural way and therefore turns out to be ideally suited fo

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Superfluid Bose systems,nd then with respect to the “slow” ones (§2). We develop procedures for deriving the effective (hydrodynamical) action functional. Corresponding to this is the hydrodynamical Hamiltonian which is fundamental and is usually postulated in Landau’s theory of superfluidity. Indeed, it was by this means