69 citations · 321 across the 16 of their papers we have counts for
16 papers
Bound-State Spectra of a Lifshitz-Type Dirac Equation in (2+1) Dimensions
Lucas K. R. Queiroz, Van Sérgio Alves, Nilberto Bezerra +2
We investigate a Dirac-type equation in dimensions modified by Lifshitz spatial derivatives with dynamical exponent , focusing on the spectral properties of bound-stat…
Enhanced Efficiency at Maximum Power in a Fock-Darwin Model Quantum Dot Engine
Francisco J. Peña, Nathan M. Myers, Daniel Órdenes +2
We study the performance of an endoreversible magnetic Otto cycle with a working substance composed of a single quantum dot described using the well-known Fock-Darwin model. We fin…
Multilayer Graphene as an Endoreversible Otto Engine
Nathan M Myers, Francisco J. Peña, Natalia Cortés +1
Graphene is perhaps the most prominent "Dirac material," a class of systems whose electronic structure gives rise to charge carriers that behave as relativistic fermions. In multil…
Boosting engine performance with Bose-Einstein condensation
Nathan M. Myers, Francisco J. Peña, Oscar Negrete +3
At low-temperatures a gas of bosons will undergo a phase transition into a quantum state of matter known as a Bose-Einstein condensate (BEC), in which a large fraction of the parti…
Proximity-induced spin-polarized magnetocaloric effect in transition metal dichalcogenides
Natalia Cortés, Francisco J. Peña, Oscar Negrete +1
We explore proximity-induced magnetocaloric effect (MCE) on transition metal dichalcogenides, focusing on a two-dimensional (2D) MoTe monolayer deposited on a ferromagnetic sem…
Seebeck and Nernst effects in topological insulator: the case of strained HgTe
Francisco J. Peña, Oscar Negrete, Ning Ma +3
We theoretically study the thermoelectric transport properties of strained HgTe in the topological insulator phase. We developed a model for the system using a Dirac Hamiltonian in…
Light-matter quantum Otto engine in finite time
G. Alvarado Barrios, F. Albarrán-Arriagada, F. J. Peña +2
We study a quantum Otto engine at finite time, where the working substance is composed of a two-level system interacting with a harmonic oscillator, described by the quantum Rabi m…
Gate-tunable direct and inverse electrocaloric effect in trilayer graphene
Natalia Cortés, Oscar Negrete, Francisco J. Peña +1
The electrocaloric (EC) effect is the reversible change in temperature and/or entropy of a material when it is subjected to an adiabatic electric field change. Our tight-binding ca…
Otto Engine: Classical and Quantum Approach
Francisco J. Peña, Oscar Negrete, Natalia Cortés +1
In this paper, we analyze the total work extracted and the efficiency of the magnetic Otto cycle in its classic and quantum versions. As a general result, we found that the work an…
Quantum and classical Otto engine for a 2-D material: the case of a graphene quantum dot
Francisco J. Peña, D. Zambrano, O. Negrete +3
In this work, we study the performance of classical and quantum magnetic Otto cycles with a working substance composed of a single graphene quantum dot modeled by the continuum app…
Isoenergetic cycle for the quantum Rabi model
G. Alvarado Barrios, Francisco J. Peña, F. Albarrán-Arriagada +2
The isoenergetic cycle is a purely mechanical cycle comprised of adabatic and isoenergetic processes. In the latter the system interacts with an energy bath keeping constant the ex…
Spin-Seebeck effect and spin polarization in a multiple quantum dot molecule
J. P. Ramos-Andrade, F. J. Peña, A. González +2
In this work, we study the conductance and the thermoelectric properties of a quantum dot embedded between two metallic leads with a side-coupled triple quantum dot molecule under…
Optimization of a relativistic quantum mechanical engine
Francisco J. Peña, Michel Ferré, Pedro Orellana René G. Rojas +1
We present an optimal analysis for a quantum mechanical engine working between two energy baths within the framework of relativistic quantum mechanics, adopting a first-order corre…
Magneto-strain-driven quantum engine on a graphene flake
Francisco J. Peña, Enrique Muñoz
We propose a novel conceptual design for a graphene-based quantum engine, driven by a superposition of mechanical strain and an external magnetic field. Engineering of strain in a…
Magnetically driven quantum heat engine
Enrique Muñoz, Francisco J. Peña
We studied the efficiency of two different schemes for a magnetically driven quantum heat engine, by considering as the working substance a single nonrelativistic particle trapped…
Quantum heat engine in the relativistic limit: The case of a Dirac particle
E. Muñoz, F. J. Peña
We studied the efficiency of two different schemes for a quantum heat engine, by considering a single Dirac particle trapped in an infinite one-dimensional potential well as the "w…