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9 research outcomes, page 1 of 1
  • other research product . Other ORP type . 2010 . Embargo End Date: 27 Aug 2013
    Open Access Greek
    Publisher: National Technological University of Athens

    Η αλλαγή φάσης αφορά μεταβάσεις, μεταξύ των τριών καταστάσεων (στερεής, υγρής και αέριας) ενός θερμοδυναμικού συστήματος από τη μία φάση σε κάποια άλλη. Το ξεχωριστό χαρακτηριστικό του φαινομένου αυτού είναι η παρατήρηση μιας ραγδαίας αλλαγής σε μία ή περισσότερες φυσικ...

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  • other research product . 2014
    Open Access English
    Authors:
    Buchbinder, Ioseph L.; Snegirev, T. V.; Zinoviev, Yu. M.;
    Persistent Identifiers

    We construct the frame-like gauge-invariant Lagrangian formulation for massive fermionic arbitrary spin fields in three-dimensional AdS space. The Lagrangian and complete set of gauge transformations are obtained. We also develop the formalism of gauge-invariant curvatu...

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  • other research product . 2014
    Open Access
    Authors:
    Bamba, Kazuharu; Nojiri, S.; Odintsov, Sergey Dmitrievich;
    Persistent Identifiers

    We reconstruct scalar field theories to realize inflation compatible with the BICEP2 result as well as the Planck. In particular, we examine the chaotic inflation model, natural (or axion) inflation model, and an inflationary model with a hyperbolic inflaton potential. ...

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  • other research product . 2014
    Open Access English
    Authors:
    Moshin, Pavel Yu.; Reshetnyak, Alexander A.;
    Persistent Identifiers

    We introduce the notion of finite BRST–antiBRST transformations, both global and field-dependent, with a doublet λa a=1,2 of anticommuting Grassmann parameters and find explicit Jacobians corresponding to these changes of variables in Yang–Mills theories. It turns out t...

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  • The explicit expressions for the one-loop non-perturbative corrections to the gravitational effective action induced by a scalar field on a stationary gravitational background are obtained both at zero and finite temperatures. The perturbative and non-perturbative contr...

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  • other research product . 2014
    Open Access
    Authors:
    Adorno, T. C.; Gitman, Dmitri M.; Shabad, A. E.;
    Persistent Identifiers

    We show, within QED and other possible nonlinear theories, that a static charge localized in a finite domain of space becomes a magnetic dipole, if it is placed in an external (constant and homogeneous) magnetic field in the vacuum. The magnetic moment is quadratic in t...

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  • other research product . 2014
    Open Access English
    Authors:
    Moshin, Pavel Yu.; Reshetnyak, Alexander A.;
    Persistent Identifiers

    We continue the study of finite BRST–antiBRST transformations for general gauge theories in Lagrangian formalism initiated in [1] , with a doublet λa , a=1,2 , of anticommuting Grassmann parameters, and find an explicit Jacobian corresponding to this change of variables...

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  • other research product . 2014
    Open Access
    Authors:
    Dvornikov, Maxim S.;
    Persistent Identifiers

    We study the system of massive and mixed neutrinos interacting with background matter moving with an acceleration. We start with the derivation of the Dirac equation for a single neutrino in the noninertial frame where matter is at rest. A particular case of matter rota...

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  • other research product . 2014
    Open Access English
    Authors:
    Kaparulin, Dmitry S.; Lyakhovich, Simon L.; Sharapov, Alexey A.;
    Persistent Identifiers

    We observe that a wide class of higher-derivative systems admits a bounded integral of motion that ensures the classical stability of dynamics, while the canonical energy is unbounded. We use the concept of a Lagrange anchor to demonstrate that the bounded integral of m...

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9 research outcomes, page 1 of 1