Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Pais, Pablo"'
Publikováno v:
Universe 2023, 9(12), 516
The concept of torsion in geometry, although known for a long time, has not gained considerable attention by the physics community until relatively recently, due to its diverse and potentially important applications to a plethora of contexts of physi
Externí odkaz:
http://arxiv.org/abs/2310.13150
Publikováno v:
J. High Energ. Phys. 12 (2023) 190
By incorporating two gauge connections, transgression forms provide a generalization of Chern-Simons actions that are genuinely gauge-invariant on bounded manifolds. In this work, we show that, when defined on a manifold with a boundary, the Hamilton
Externí odkaz:
http://arxiv.org/abs/2309.16760
Publikováno v:
Phys. Lett. B 852 (2024) 138630
It was recently shown that taking into account the granular structure of graphene lattice, the Dirac-like dynamics of its quasiparticles resists beyond the lowest energy approximation. This can be described in terms of new phase-space variables, $(\v
Externí odkaz:
http://arxiv.org/abs/2306.17196
Publikováno v:
Phys. Rev. D 108 (2023) 114027
A remarkable exact mapping, valid for low-enough energy scales and close to a sharp boundary distribution of hadronic matter, from the $(3+1)$-dimensional Skyrme model to the sine-Gordon theory in $(1+1)$ dimensions in the attractive regime is explic
Externí odkaz:
http://arxiv.org/abs/2304.09137
Autor:
Iorio, Alfredo, Pais, Pablo
Assuming that, with some care, dislocations could be meaningfully described by torsion, we propose here a scenario based on a previously unexplored role of time in the low-energy Dirac field theory description of two-space-dimensional Dirac materials
Externí odkaz:
http://arxiv.org/abs/2302.02491
We discuss here how, when higher-order effects in the parameter $\frac{\ell}{\hbar} |\vec{p}|$, related to the lattice spacing $\ell$, are considered, pristine graphene, and other Dirac materials, can be used as tabletop systems where generalized com
Externí odkaz:
http://arxiv.org/abs/2302.00677
Publikováno v:
Phys. Rev. D 106 (2022) 116011
We show that graphene, in its simplest form and settings, is a practical table-top realization of the analog of exotic quantum gravity scenarios, which are speculated to lead to certain generalized Heisenberg algebras. In particular, we identify thre
Externí odkaz:
http://arxiv.org/abs/2208.02237
Publikováno v:
J. High Energ. Phys. 2022, 95 (2022)
We employ path integral methods to calculate the Casimir energy and force densities in a chiral extension of QED. Manifestly gauge invariant perfect electromagnetic boundary conditions, a natural generalization of perfect electric and perfect magneti
Externí odkaz:
http://arxiv.org/abs/2207.09175
Publikováno v:
Universe 8 (2022) 9, 455
Analogs of fundamental physical phenomena can be used in two ways. One way consists in reproducing specific aspects of classical or quantum gravity, of quantum fields in curved space or of other high-energy scenarios, on lower-energy corresponding sy
Externí odkaz:
http://arxiv.org/abs/2207.04097
Autor:
Iorio, Alfredo, Pais, Pablo
We propose a scenario where the effects of dislocations, in bidimensional Dirac materials at low energies, can be described within a Dirac field theory by a vertex proportional to the totally antisymmetric component of the torsion generated by such d
Externí odkaz:
http://arxiv.org/abs/2012.09910