2003
DOI: 10.1088/0305-4470/37/1/013
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p-mechanics as a physical theory: an introduction

Abstract: The paper provides an introduction into p-mechanics, which is a consistent physical theory suitable for a simultaneous description of classical and quantum mechanics. p-Mechanics naturally provides a common ground for several different approaches to quantisation (geometric, Weyl, coherent states, Berezin, deformation, Moyal, etc.) and has a potential for expansions into field and string theories. The backbone of p-mechanics is solely the representation theory of the Heisenberg group.

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Cited by 27 publications
(56 citation statements)
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“…As such, CQG-theory is endowed with a number of key features, since: A) it preserves the background metric tensor g(r) which is identified with a classical field tensor; B) it satisfies the quantum unitarity principle, i.e., the quantum probability is conserved; C) it is constraint-free, in the sense that the quantum Lagrangian variables g ≡ g(r, s) are identified with independent tensor fields; D) it is non-perturbative so that the quantum fluctuations δg(r, s) and δπ(r, s) need not be regarded as asymptotically "small" in some appropriate sense with respect to the background metric tensor g(r). Its foundations (for a detailed discussion see [9]) lie on the preliminary establishment of a variational formulation of GR achieved in the context of a covariant DeDonder-Weyl-type approach to continuum field-Hamiltonian dynamics [12][13][14][15][16][17][18][19] in which the background space-time Q 4 , g is considered prescribed [7,8].…”
Section: Introductionmentioning
confidence: 99%
“…As such, CQG-theory is endowed with a number of key features, since: A) it preserves the background metric tensor g(r) which is identified with a classical field tensor; B) it satisfies the quantum unitarity principle, i.e., the quantum probability is conserved; C) it is constraint-free, in the sense that the quantum Lagrangian variables g ≡ g(r, s) are identified with independent tensor fields; D) it is non-perturbative so that the quantum fluctuations δg(r, s) and δπ(r, s) need not be regarded as asymptotically "small" in some appropriate sense with respect to the background metric tensor g(r). Its foundations (for a detailed discussion see [9]) lie on the preliminary establishment of a variational formulation of GR achieved in the context of a covariant DeDonder-Weyl-type approach to continuum field-Hamiltonian dynamics [12][13][14][15][16][17][18][19] in which the background space-time Q 4 , g is considered prescribed [7,8].…”
Section: Introductionmentioning
confidence: 99%
“…Nevertheless, the mathematical framework to be adopted for the construction of manifestly-covariant classical Lagrangian and Hamiltonian theories is well-established both for particle dynamics [16][17][18][19][20] as well in continuum field theory, where it is known as the DeDonder-Weyl formalism [21][22][23][24][25][26][27][28][29]. This type of formulation has been developed and applied consistently to the case of the gravitational field described by SF-GR only recently in Refs.…”
Section: Introductionmentioning
confidence: 99%
“…Corresponding to the Euler-Lagrange equations of field theory, the canonical field equations then take on a symmetric form with respect to the four independent variables of space-time. This approach is commonly referred to as "multisymplectic" or "polysymplectic field theory", thereby labeling the covariant extension of the symplectic geometry of the conventional Hamiltonian theory [Kanatchikov (1998); Gotay et al (2004); Kastrup (1983); Paufler (2001) ;Forger et al (2003); Echeverría-Enríquez et al (1996); Sardanashvily (1995); Kisil (2004)]. Mathematically, the phase space of multisymplectic Hamiltonian field theory is defined within modern differential geometry in the language of "jet bundles" [Saunders (1989); Günther (1987)].…”
Section: Introductionmentioning
confidence: 99%