Symplectic quantization and general constraint structure of a prototypical second-class system

Abstract We discuss a general prototypical constrained Hamiltonian system with a broad application in quantum field theory and similar contexts where dynamics is defined through a functional action obeying a stationarity principle. The prototypical model amounts to a Dirac–Bergmann singular system, whose constraints restrict the actual dynamics to occur within a differential submanifold, as is the case in the major part of field theoretical models with gauge symmetry. We apply the Dirac–Bergmann algorithm in its full generality unraveling a total of 4 m second-class constraints and obtain the corresponding Dirac brackets algebra in phase space. We follow with the Faddeev–Jackiw–Barcelos–Wotzasek approach in which the geometric character of the mentioned submanifold is emphasized by means of an internal metric function encoding its symplectic properties. We consider two straightforward examples, applying our general results to constrained motion along a toroidal geometry and to a Lorentz violating toy model in field theory. Since toroidal geometry has been recently used in cosmological models, we suggest how our results could lead to different proposals for the shape of the universe in cosmology.

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Publication Details

Journal
The European Physical Journal C
Published
2024-12-03
DOI
https://doi.org/10.1140/epjc/s10052-024-13631-7
Citations
2
Primary Topic
Noncommutative and Quantum Gravity Theories
Type
article
Field-Weighted Citation Impact
0.56

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article

Symplectic quantization and general constraint structure of a prototypical second-class system

Ronaldo Thibes, Vipul Kumar Pandey, Ignacio S. Gomez
2 citations
The European Physical Journal C
Noncommutative and Quantum Gravity Theories
0.56
article

Symplectic quantization and general constraint structure of a prototypical second-class system

Ronaldo Thibes, Vipul Kumar Pandey, Ignacio S. Gomez
article en
2 citations

Abstract

Abstract We discuss a general prototypical constrained Hamiltonian system with a broad application in quantum field theory and similar contexts where dynamics is defined through a functional action obeying a stationarity principle. The prototypical model amounts to a Dirac–Bergmann singular system, whose constraints restrict the actual dynamics to occur within a differential submanifold, as is the case in the major part of field theoretical models with gauge symmetry. We apply the Dirac–Bergmann algorithm in its full generality unraveling a total of 4 m second-class constraints and obtain the corresponding Dirac brackets algebra in phase space. We follow with the Faddeev–Jackiw–Barcelos–Wotzasek approach in which the geometric character of the mentioned submanifold is emphasized by means of an internal metric function encoding its symplectic properties. We consider two straightforward examples, applying our general results to constrained motion along a toroidal geometry and to a Lorentz violating toy model in field theory. Since toroidal geometry has been recently used in cosmological models, we suggest how our results could lead to different proposals for the shape of the universe in cosmology.

The European Physical Journal CVol. 84(12)
Chandigarh University (IN), Universidade Estadual de Santa Cruz (BR), Southwest Bahia State University (BR)
Conselho Nacional de Desenvolvimento Científico e Tecnológico, Universidade Estadual de Santa Cruz
Openalex Percentile: Top 33%
Noncommutative and Quantum Gravity Theories
0.56
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