Zobrazeno 1 - 10
of 900
pro vyhledávání: '"Lima W"'
Autor:
Oliveira, P. H. F., Lima, W. P.
With the advent of Albert Einstein's theory of special relativity, Klein and Gordon made the first attempt to elevate time to the status of a coordinate in the Schr\"odinger equation. In this study, we graphically discuss the eigenfunctions and eigen
Externí odkaz:
http://arxiv.org/abs/2411.02690
Autor:
Uchôa, E. S., Lima, W. P., Sena, S. H. R., Chaves, A. J. C., Pereira Jr., J. M., da Costa, D. R.
We investigate the electronic properties of nanoribbons made out of monolayer Lieb, transition, and kagome lattices using the tight-binding model with a generic Hamiltonian. It allows us to map the evolutionary stages of the interconvertibility proce
Externí odkaz:
http://arxiv.org/abs/2408.15764
Autor:
De Lima, W. B., De Fabritiis, P.
Publikováno v:
Phys. Lett. B 833, 137326 (2022)
We present a self-dual parity-invariant $U(1) \times U(1)$ Maxwell-Chern-Simons scalar $\text{QED}_3$. We show that the energy functional admits a Bogomol'nyi-type lower bound, whose saturation gives rise to first order self-duality equations. We per
Externí odkaz:
http://arxiv.org/abs/2207.00831
Autor:
De Lima, W. B., De Fabritiis, P.
Publikováno v:
Mod. Phys. Lett. A 38, 2350174 (2023)
In this work we propose a parity-invariant Maxwell-Chern-Simons $U(1) \times U(1)$ model coupled with two charged scalar fields in $2+1$ dimensions, and show that it admits finite-energy topological vortices. We describe the main features of the mode
Externí odkaz:
http://arxiv.org/abs/2205.10427
Publikováno v:
Eur. Phys. J. B93 (2020) 187
The parity-preserving $U(1)\times U(1)$ massless QED$_3$ is proposed as a pristine graphene-like planar quantum electrodynamics model. The spectrum content, the degrees of freedom, spin, masses and charges of the quasiparticles (electron-polaron, hol
Externí odkaz:
http://arxiv.org/abs/1912.02353
Publikováno v:
Annals of Physics 430 (2021) 168504
The parity-preserving $U_A(1)\times U_a(1)$ massive QED$_3$ is ultraviolet finiteness -- exhibits vanishing $\beta$-functions, associated to the gauge coupling constants (electric and pseudochiral charges) and the Chern-Simons mass parameter, and all
Externí odkaz:
http://arxiv.org/abs/1908.04878
Publikováno v:
Annals of Physics 427 (2021) 168385
We analyze the Schr\"odinger operator in two-dimensions with an attractive potential given by a Bessel-Macdonald function. This operator is derived in the non-relativistic approximation of planar quantum electrodynamics (${\rm QED}_3$) models as a fr
Externí odkaz:
http://arxiv.org/abs/1810.02008
Akademický článek
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Publikováno v:
Phys.Rev.D86:104025,2012
Dense enough compact objects were recently shown to lead to an exponentially fast increase of the vacuum energy density for some free scalar fields properly coupled to the spacetime curvature as a consequence of a tachyonic-like instability. Once the
Externí odkaz:
http://arxiv.org/abs/1204.3654
Akademický článek
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