Zobrazeno 1 - 10
of 10
pro vyhledávání: '"F. E. P. dos Santos"'
Publikováno v:
New Journal of Physics, Vol 25, Iss 6, p 063015 (2023)
A key aspect of ultracold bosonic quantum gases in deep optical lattice potential wells is the realization of the strongly interacting Mott insulating phase. Many characteristics of this phase are well understood, however little is known about the ef
Externí odkaz:
https://doaj.org/article/93090926a45b45bfb40684e7dcf83bd0
Publikováno v:
New Journal of Physics, Vol 23, Iss 8, p 083007 (2021)
We analyse the distinction between the three different ground states presented by a system of spinless bosons with short-range interactions submitted to a random potential using the disordered Bose–Hubbard model. The criteria for identifying the su
Externí odkaz:
https://doaj.org/article/fd303a30a20e465f84ef78db6879b0c5
Publikováno v:
Physics Letters B, Vol 790, Iss, Pp 354-360 (2019)
Physics Letters
Physics Letters
We have studied a Lorentz-violating scalar electrodynamics in which the gauge and scalar fields interact via a nonminimal covariant derivative containing CPT-odd and CPT-even backgrounds. By considering the complex scalar field describes a charged me
Publikováno v:
Physical Review D. 94
Following a successfully quantization scheme previously developed in Ref. [R. Casana, M. M. Ferreira, Jr., and F. E. P. dos Santos, Phys. Rev. D 90, 105025 (2014).] for a parity-even gauge sector of the SME, we have established the Gupta-Bleuler quan
We have established the Gupta-Bleuler quantization of the photon belonging to the anisotropic parity-even sector of the $CPT$-even and Lorentz-violating (LV) nonbirefringent electrodynamics of the standard model extension. We first present a rule for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::384adfa8ce64b37e61b9552670824e91
http://arxiv.org/abs/1408.4829
http://arxiv.org/abs/1408.4829
We propose a CPT-even and Lorentz-violating dimension-five nonminimal coupling between fermionic and gauge fields, involving the CPT-even and Lorentzviolating gauge tensor of the Standard-Model Extension. This nonminimal coupling modifies the nonrela
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dbcc04c9b6147da2a8792ac68468754
https://doi.org/10.1142/9789814566438_0035
https://doi.org/10.1142/9789814566438_0035
In this letter we show for the first time that the usual CPT-even gauge term of the standard model extension (SME) can be radiatively generated, in a gauge invariant level, in the context of a modified QED endowed with a dimension-five nonminimal cou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb959ab0356f719136ddc2cfd4856f2d
http://arxiv.org/abs/1302.2375
http://arxiv.org/abs/1302.2375
We propose a new \emph{CPT}-even and Lorentz-violating nonminimal coupling between fermions and Abelian gauge fields involving the CPT-even tensor $(K_{F})_{\mu\nu\alpha\beta}$ of the standard model extension. We thus investigate its effects on the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c13e2b9e28b0635013529de00b873c8
In this work, we propose a CPT-even and Lorentz-violating dimension-five nonminimal coupling between fermionic and gauge fields, involving the CTP-even and Lorentz-violating gauge tensor of the SME. This nonminimal coupling modifies the Dirac equatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb962195487542d924dfe7eef2edc566
Autor:
Luciana R. P. Kassab, Luis A. Gómez, Windson G. Hora, A.S.L. Gomes, F. E. P. dos Santos, Cid B. de Araújo
Publikováno v:
Applied Physics Letters. 92:141916
We report measurements of the nonlinear (NL) refractive index n2 of lead-germanium films (LGFs) containing Cu and Cu2O nanoparticles (NPs). The thermally managed eclipse Z-scan technique with 150fs pulses from a laser operating at 800nm was used. The