Zobrazeno 1 - 10
of 32
pro vyhledávání: '"De Francia, M."'
Publikováno v:
Phys.Rev. D61 (2000) 085019
We study the effect of a background flux string on the vacuum energy of massive Dirac fermions in 2+1 dimensions confined to a finite spatial region through MIT boundary conditions. We treat two admissible self-adjoint extensions of the Hamiltonian a
Externí odkaz:
http://arxiv.org/abs/hep-th/9910154
We study the problem of a Dirac field in the background of an Aharonov-Bohm flux string. We exclude the origin by imposing spectral boundary conditions at a finite radius then shrinked to zero. Thus, we obtain a behaviour of the eigenfunctions which
Externí odkaz:
http://arxiv.org/abs/hep-th/9811242
Publikováno v:
Phys.Rev.C60:055203,1999
We introduce the chemical potential in a system of two-flavored massless fermions in a chiral 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
Externí odkaz:
http://arxiv.org/abs/hep-th/9811046
Publikováno v:
Int.J.Mod.Phys. A14 (1999) 4749-4762
We study the problem of a Dirac field in the background of an Aharonov-Bohm flux string. We exclude the origin by imposing spectral boundary conditions at a finite radius then shrinked to zero. Thus, we obtain a behaviour of eigenfunctions which is c
Externí odkaz:
http://arxiv.org/abs/hep-th/9809081
Publikováno v:
Phys.Rev. D55 (1997) 2477-2485
We introduce the chemical potential in a system of massless fermions in a bag by impossing 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
Externí odkaz:
http://arxiv.org/abs/hep-th/9608192
Publikováno v:
Phys.Lett. B371 (1996) 285-292
The total energy in the two-phase chiral bag model is studied, including the contribution due to the bag (Casimir energy plus energy of the valence quarks), as well as the one coming from the Skyrmion in the external sector. A consistent determinatio
Externí odkaz:
http://arxiv.org/abs/hep-ph/9507347
Publikováno v:
Phys.Rev.D51:7132-7139,1995
We introduce the chemical potential in a system of two-dimensional massless fermions, confined to a finite region, by imposing twisted boundary conditions in the Euclidean time direction. We explore in this simple model the application of functional
Externí odkaz:
http://arxiv.org/abs/hep-th/9412088
Accurate limits for the violation of the Principle of Equivalence have been found from the comparison of the redshifts of two identical nuclear species in different chemical environments.
Comment: LaTeX, 8 pages, 1 figure (included), LAPLATA-
Comment: LaTeX, 8 pages, 1 figure (included), LAPLATA-
Externí odkaz:
http://arxiv.org/abs/gr-qc/9211005
Autor:
De Francia M
Publikováno v:
Physical Review D. 50:2908-2919
The free energy of scalar, fermionic, and gauge fields confined to spherical regions is calculated. Ultraviolet divergences are isolated through an analytical regularization, and finite-temperature-dependent contributions are studied by means of nume
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a654427cbe2c6788001071ade7bd07d
https://doi.org/10.1103/physrevd.50.2908
https://doi.org/10.1103/physrevd.50.2908
Autor:
De Francia, M., Trabocchi, O.
Publikováno v:
An. (Asoc. Fís. Argent., En línea) 1990;01(02):91-94
Biblioteca Digital (UBA-FCEN)
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
Biblioteca Digital (UBA-FCEN)
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
A través del desarrollo en reflexiones múltiples se calcula la función de Green correspondiente a fermiones libres confinados en una bolsa quiral bidimensional estática, acoplados con un campo externo estático, analizándose completamente el mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::0d8a96d0bb61187419bd423e738ed675