47 citations · 214 across the 19 of their papers we have counts for
19 papers
Influence of the four-fermion interactions in (2+1)D massive electrons system
Luis Fernández, Van Sérgio Alves, M. Gomes +2
The description of the electromagnetic interaction in two-dimensional Dirac materials, such as graphene and transition-metal dichalcogenides, in which electrons move in the plane a…
Dynamical Mass Generation in Pseudo Quantum Electrodynamics with Gross-Neveu Interaction at finite temperature
Luis Fernández, Reginaldo O. Corrêa, Van Sérgio Alves +2
We study the dynamical mass generation in Pseudo Quantum Electrodynamics (PQED) coupled to the Gross-Neveu (GN) interaction, in (2+1) dimensions, at both zero and finite temperatur…
Renormalization of the band gap in 2D materials through the competition between electromagnetic and four-fermion interactions
Luis Fernández, Van Sérgio Alves, Leandro O. Nascimento +3
Recently the renormalization of the band gap , in both WSe and MoS, has been experimentally measured as a function of the carrier concentration . The main result esta…
Superconducting and Pseudogap Transition Temperatures in High-Tc Cuprates and the Dependence on Pressure
E. C. Marino, Reginaldo O. Corrêa, R. Arouca +2
We derive analytic expressions for the critical temperatures of the superconducting (SC) and pseudogap (PG) transitions of the high-Tc cuprates as a function of doping. These are i…
Projected Proca Field Theory: a One-Loop Study
R. F. Ozela, Van Sérgio Alves, E. C. Marino +4
The recent discovery of two-dimensional Dirac materials, such as graphene and transition-metaldichalcogenides, has raised questions about the treatment of hybrid systems, in which…
Bosonic interactions in a nonlocal theory in (2+1) dimensions
Ygor Pará, Van Sérgio Alves, Tommaso Macrì +2
Pseudo-Quantum Electrodynamics (PQED) provides an excellent description of the interaction between charged particles confined to a plane. When we couple pseudo-gauge field with a b…
Bounded particle interactions driven by a nonlocal dual Chern-Simons model
Van Sérgio Alves, E. C. Marino, Leandro O. Nascimento +3
Quantum electrodynamics (QED) of electrons confined in a plane and that yet can undergo interactions mediated by an unconstrained photon has been described by the so-called {\it ps…
The Superconducting and Pseudogap Phase Diagram of High-Tc Cuprates
E. C. Marino, Reginaldo O. C. Junior, Lizardo H. C. M. Nunes +1
We derive analytic expressions for the critical temperatures of the superconducting (SC) and pseudogap (PG) phases of the high-Tc cuprates, which are in excellent agreement with th…
Two-dimensional Yukawa interaction driven by a nonlocal-Proca quantum electrodynamics
Van Sérgio Alves, Tommaso Macrì, Gabriel C. Magalhães +2
We derive two versions of an effective model to describe dynamical effects of the Yukawa interaction among Dirac electrons in the plane. Such short-range interaction is obtained by…
Screening and Topological Order in Thin Superconducting Films
E. C. Marino, D. Niemeyer, Van Sérgio Alves +2
We derive an effective two-dimensional low-energy theory for thin superconducting films coupled to a three-dimensional fluctuating electromagnetic field. Using this theory we discu…
Dynamical Mass Generation in Pseudo Quantum Electrodynamics with Four-Fermion Interactions
Van Sérgio Alves, Reginaldo O. C. Junior, E. C. Marino +1
We describe dynamical symmetry breaking in a system of massless Dirac fermions with both electromagnetic and four-fermion interactions in (2+1) dimensions. The former is described…
Quantum Valley Hall Effect in Massive Dirac Systems Coupled to a Scalar Field
S. H. Kooi, N. Menezes, Van Sérgio Alves +1
We use Pseudo Quantum Electrodynamics to study massive (2+1)D Dirac systems interacting electromagnetically via a U(1) gauge field in (3+1)D. It was recently found in Ref. [1], tha…
Emerging Quantum Hall Effect in Massive Dirac Systems
Leandro O. Nascimento, E. C. Marino, Van Sérgio Alves +1
An interaction-driven nonzero quantum Hall conductivity is shown to occur in time-reversal symmetric massive Dirac materials, in the absence of any external agent. The effect is pr…
Light front Casimir effect at finite temperature
P. L. M. Rodrigues, Silvana Perez, Danilo T. Alves +2
The correct description of the standard Casimir effect for periodic boundary conditions via light front formalism implies in these conditions imposed at fixed Minkowski times [Alme…
Unitarity of theories containing fractional powers of the d'Alembertian operator
E. C. Marino, Leandro O. Nascimento, Van Sérgio Alves +1
We examine the unitarity of a class of generalized Maxwell U(1) gauge theories in (2+1) D containing the pseudodifferential operator , for . We show that on…
Chern-Simons terms in Lifshitz like quantum electrodynamics
Van Sérgio Alves, B. Charneski, M. Gomes +2
In this work the generation of generalized Chern-Simons terms in three dimensional quantum electrodynamics with high spatial derivatives is studied. We analyze the self-energy corr…
Light-front field theories at finite temperature
V. S. Alves, Ashok Das, Silvana Perez
We study the question of generalizing light-front field theories to finite temperature. We show that the naive generalization has serious problems and we identify the source of the…
Screening Length in 2+1-dimensional Abelian Chern-Simons Theories
V. S. Alves, Ashok Das, Silvana Perez
In this paper, we systematically study the question of screening length in Abelian Chern-Simons theories. In the Abelian Higgs theory, where there are two massive poles in the gaug…
Parity Violating Bosonic Loops at Finite Temperature
V. S. Alves, Ashok Das, Gerald V. Dunne +1
The finite temperature parity-violating contributions to the polarization tensor are computed at one loop in a system without fermions. The system studied is a Maxwell-Chern-Simons…