Browsing by Author "Falomir, H"

Now showing 1 - 4 of 4
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    Finite density and temperature in hybrid bag models
    (1999) De Francia, M; Falomir, H; Loewe, M
    We introduce the chemical potential in a system of two-flavored massless fermions in a chiral bag, with an external Skyrmion, by imposing boundary conditions in the Euclidean time direction. We express the fermionic mean number in terms of a functional trace involving the Green function of the boundary value problem, which is studied analytically. Numerical evaluations for the fermionic number are presented. [S0556-2813(99)04310-1].
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    Massless fermions in a bag at finite density and temperature
    (1997) DeFrancia, M; Falomir, H; Loewe, M
    We introduce the chemical potential in a system of massless fermions in a bag by imposing boundary conditions in the Euclidean time direction. We express the fermionic mean number in terms of a functional trace involving the Green's function of the boundary value problem, which we study analytically. Numerical evaluations are made, and an application to a simple hadron model is discussed.
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    Optical conductivity in an effective model for graphene: finite temperature corrections
    (2020) Falomir, H; Munoz, E; Loewe Lobo, Marcelo Patricio; Zamora Jofré, Renato Andrés
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    Testing spatial noncommutativity via the Aharonov-Bohm effect -: art. no. 045018
    (2002) Falomir, H; Gamboa, J; Loewe, M; Méndez, F; Rojas, JC
    The possibility of detecting noncommutative space relics is analyzed using the Aharonov-Bohm effect. We show that, if space is noncommutative, the holonomy receives nontrivial kinematical corrections that will produce a diffraction pattern even when the magnetic flux is quantized. The scattering problem is also formulated, and the differential cross section is calculated. Our results can be extrapolated to high energy physics and the bound thetasimilar to[10 TeV](-2) is found. If this bound holds, then noncommutative effects could be explored in scattering experiments measuring differential cross sections for small angles. The bound state Aharonov-Bohm effect is also discussed.