Zobrazeno 1 - 10
of 363
pro vyhledávání: '"Gozzi, E."'
In quantum statistical mechanics, Moyal's equation governs the time evolution of Wigner functions and of more general Weyl symbols that represent the density matrix of arbitrary mixed states. A formal solution to Moyal's equation is given by Marinov'
Externí odkaz:
http://arxiv.org/abs/2004.08874
Publikováno v:
Ann.of.Phys.400 (2019) 156-188
In this paper we show that, via an extension of time, some metric structures naturally appear in both classical and quantum mechanics when both are formulated via path integrals. We calculate the various Ricci scalar and curvatures associated to thes
Externí odkaz:
http://arxiv.org/abs/1811.04614
Autor:
Gozzi, E.
Publikováno v:
Phys.Lett. A 382 (2018) 1075
In this paper we derive various identities involving the {\it action} functional which enters the path-integral formulation of quantum mechanics. They provide some kind of generalisations of the Ehrenfest theorem giving correlations between powers of
Externí odkaz:
http://arxiv.org/abs/1702.05516
Autor:
Cattaruzza, E., Gozzi, E.
Publikováno v:
IJMPA vol.31 (2016) 1650163
In this paper we show how to obtain from a scalar superfield its first component via a similarity transformation. We prove that in D=4 the generators of this similarity transformation live in the enveloping algebra of supersymmetry while for D=1 they
Externí odkaz:
http://arxiv.org/abs/1607.06024
Publikováno v:
Phys.Lett.A 378 (2014) 2501-2504
In this paper we show that the energy eigenstates of supersymmetric quantum mechanics (SUSYQM) with non definite "fermion" number are entangled states. They are "physical states" of the model provided that observables with odd number of spin variable
Externí odkaz:
http://arxiv.org/abs/1308.6212
Publikováno v:
Phys. Rev.D 87, 067501 (2013)
In this paper we show how the equations of motion of a superfield, which makes its appearance in a path-integral approach to classical mechanics, can be derived without the need of the least-action principle
Comment: to appear IN PHYS.REV.D (Bri
Comment: to appear IN PHYS.REV.D (Bri
Externí odkaz:
http://arxiv.org/abs/1302.3329
Publikováno v:
In Annals of Physics January 2019 400:156-188
Publikováno v:
Annals Phys.326:876-910,2011
In this paper we study three different functional approaches to classical thermal field theory, which turn out to be the classical counterparts of three well-known different formulations of quantum thermal field theory: the Closed-Time Path (CTP) for
Externí odkaz:
http://arxiv.org/abs/1008.5135
Publikováno v:
AIP Conf.Proc. 844 (2006) 158-176
Classical mechanics, in the operatorial formulation of Koopman and von Neumann, can be written also in a functional form. In this form two Grassmann partners of time make their natural appearance extending in this manner time to a three dimensional s
Externí odkaz:
http://arxiv.org/abs/quant-ph/0601209
Publikováno v:
Annalen Phys. 15 (2006) 177-215
In this paper we present the Koopman-von Neumann (KvN) formulation of classical non-Abelian gauge field theories. In particular we shall explore the functional (or classical path integral) counterpart of the KvN method. In the quantum path integral q
Externí odkaz:
http://arxiv.org/abs/hep-th/0508244