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pro vyhledávání: '"Falomir, Horacio"'
In this article we study two-dimensional Dirac Hamiltonians with non-commutativity both in coordinates and momenta from an algebraic perspective. In order to do so, we consider the graded Lie algebra $\mathfrak{sl}(2|1)$ generated by Hermitian biline
Externí odkaz:
http://arxiv.org/abs/2205.00898
Publikováno v:
Phys. Rev. B 103, 235431 (2021)
We studied theoretically the effect of a low concentration of adsorbed polar molecules on the optical conductivity of graphene, within the Kubo linear response approximation. Our analysis is based on a continuum model approximation that includes up t
Externí odkaz:
http://arxiv.org/abs/2103.09618
To motivate our discussion, we consider a 1+1 dimensional scalar field interacting with a static Coulomb-type background, so that the spectrum of quantum fluctuations is given by a second-order differential operator on a single coordinate r with a si
Externí odkaz:
http://arxiv.org/abs/2004.04004
In this article, we investigate the temperature and chemical potential dependence of the optical conductivity of graphene, within a field theoretical representation in the continuum approximation, arising from an underlying tight-binding atomistic mo
Externí odkaz:
http://arxiv.org/abs/1907.02017
Publikováno v:
Phys. Rev. B 98, 195430 (2018)
Motivated by experiments confirming that the optical transparency of graphene is defined through the fine structure constant and that it could be fully explained within the relativistic Dirac fermions in 2D picture, in this article we investigate how
Externí odkaz:
http://arxiv.org/abs/1712.10303
Publikováno v:
Annals Phys.325:2653-2667,2010
The quantum nonrelativistic spin-1/2 planar systems in the presence of a perpendicular magnetic field are known to possess the N=2 supersymmetry. We consider such a system in the field of a magnetic vortex, and find that there are just two self-adjoi
Externí odkaz:
http://arxiv.org/abs/1003.1434
Publikováno v:
J.Phys.A43:075202,2010
A hidden supersymmetry is revealed in the spinless Aharonov-Bohm problem. The intrinsic supersymmetric structure is shown to be intimately related with the scale symmetry. As a result, a bosonized superconformal symmetry is identified in the system.
Externí odkaz:
http://arxiv.org/abs/0906.4055
We discuss the contribution of axion-like excitations (ALE) to the vacuum birrefringence in the limit $m_A \gtrsim \omega$, where $m_A$ is the mass of the excitation and $\omega$ the energy of test photons interacting with an external (intense) magne
Externí odkaz:
http://arxiv.org/abs/0803.4491
Autor:
Falomir, Horacio Alberto, Saravi, Ricardo Enrique Gamboa, Muschietti, Mar\'{\I}a Amelia, Santangelo, Eve Mariel, Solomin, Jorge Eduardo
A formula relating quotients of determinants of elliptic differential operators sharing their principal symbol, with local boundary conditions, to the corresponding Green function is given.
Comment: standard LaTeX, 14 pages
Comment: standard LaTeX, 14 pages
Externí odkaz:
http://arxiv.org/abs/hep-th/9608102
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