4 documents found, page 1 of 1
Heat-kernel expansion at finite temperature
Boschi-Filho, H.; Natividade, C. P.; Farina, C.Made available in DSpace on 2022-04-29T08:41:47Z (GMT). No. of bitstreams: 0 Previous issue date: 1992-01-01; We show how the zero-temperature result for the heat-kernel asymptotic expansion can be generalized to the finite-temperature one. We observe that this general result depends on the interesting ratio, where is the regularization parameter and =1T, so that the zero-temperature limit corresponds to the cu...
Measurements of the Higgs boson production and decay rates and constraints on i...
Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Abeloos, B.; Aben, R.; AbouZeid, O. S.; Abraham, N. L.; Abramowicz, H.; Abreu, H.; Abreu, R.Made available in DSpace on 2018-11-26T17:56:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-07-18; ANPCyT (Argentina); YerPhI (Armenia); ARC (Australia); BMWFW (Austria); FWF (Austria); ANAS (Azerbaijan); SSTC (Belarus); FNRS (Belgium); FWO (Belgium); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Fundação de ...
Active magneto-optical control of spontaneous emission in graphene
Kort-Kamp, W. J. M.; Amorim, B.; Bastos, G.; Pinheiro, Felipe A.; Rosa, F. S. S.; Peres, N. M. R.; Farina, C.We investigate the spontaneous emission rate of a two-level quantum emitter near a graphene-coated substrate under the influence of an external magnetic field or strain induced pseudo-magnetic field. We demonstrate that the application of the magnetic field can substantially increase or decrease the decay rate. We show that a suppression as large as 99$\%$ in the Purcell factor is achieved even for moderate mag...
Dynamical Casimir effect for a massless scalar field between two concentric sph...
Farina, C.