Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Daniel Gutiérrez Ruiz"'
Publikováno v:
Universe, Vol 7, Iss 4, p 109 (2021)
Dirac’s formalism for constrained systems is applied to the analysis of time-dependent Hamiltonians in the extended phase space. We show that the Lewis invariant is a reparametrization invariant, and we calculate the Feynman propagator using the ex
Externí odkaz:
https://doaj.org/article/b2b80bf063f34ce0b6595a31839d998b
Publikováno v:
Physical Review B. 105
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5635dff2f1551064a6ee804135679c2
https://doi.org/10.1103/physrevb.105.214106
https://doi.org/10.1103/physrevb.105.214106
Autor:
Jorge G. Hirsch, Diego Gonzalez, Jorge Chávez-Carlos, J. David Vergara, Daniel Gutiérrez-Ruiz
We study the quantum metric tensor and its scalar curvature for a particular version of the Lipkin-Meshkov-Glick model. We build the classical Hamiltonian using Bloch coherent states and find its stationary points. They exhibit the presence of a grou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9225491f9ee753ddcaf1dd6f85485224
Publikováno v:
The European Physical Journal Plus. 136
The aim of this paper is to present a new approach to construct constants of motion associated with scaling symmetries of dynamical systems. Scaling maps could be symmetries of the equations of motion but not of its associated Lagrangian action. We h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c07a17d33814d77cbb8f6a79f4538b4c
https://doi.org/10.1140/epjp/s13360-020-00987-4
https://doi.org/10.1140/epjp/s13360-020-00987-4
We study the classical analog of the quantum metric tensor and its scalar curvature for two well-known quantum physics models. First, we analyze the geometry of the parameter space for the Dicke model with the aid of the classical and quantum metrics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a7d7e286619dfcba0d16274f0457456
The local geometry of the parameter space of a quantum system is described by the quantum metric tensor and the Berry curvature, which are two fundamental objects that play a crucial role in understanding geometrical aspects of condensed matter physi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99746e8524d0bb9fb51da5f7ce5b6ba9
http://arxiv.org/abs/1909.05925
http://arxiv.org/abs/1909.05925
Publikováno v:
Universe
Volume 7
Issue 4
Universe, Vol 7, Iss 109, p 109 (2021)
Volume 7
Issue 4
Universe, Vol 7, Iss 109, p 109 (2021)
Dirac’s formalism for constrained systems is applied to the analysis of time-dependent Hamiltonians in the extended phase space. We show that the Lewis invariant is a reparametrization invariant, and we calculate the Feynman propagator using the ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fee32c75b9c244ec1d9fb4dc8661429f
https://doi.org/10.3390/universe7040109
https://doi.org/10.3390/universe7040109
Publikováno v:
Physical review. E. 99(3-1)
We present a classical analog of the quantum metric tensor, which is defined for classical integrable systems that undergo an adiabatic evolution governed by slowly varying parameters. This classical metric measures the distance, on the parameter spa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c95d1e9d36e7b9eac2dc8d9024334d52
https://pubmed.ncbi.nlm.nih.gov/30999496
https://pubmed.ncbi.nlm.nih.gov/30999496
Autor:
Javier Alvarez-Jimenez, Daniel Gutiérrez-Ruiz, Ignacio Cortese, J. Antonio García, J. David Vergara
Starting from ${\cal N}=4$ SYM and using an appropriate Higgs mechanism we reconsider the construction of a scalar field theory non-minimally coupled to a Coulomb potential with a relativistic SO(4) symmetry and check for scalar field consistency con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9696782e7db0f5accc4566d575b1782b
Publikováno v:
Journal of Physics: Conference Series. 1194:012057
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50ec08f457b844d4ab9d42d59a437350
https://doi.org/10.1088/1742-6596/1194/1/012057
https://doi.org/10.1088/1742-6596/1194/1/012057