Bosons outperform fermions: The thermodynamic advantage of symmetry

NM Myers, S Deffner - Physical Review E, 2020 - APS
We examine a quantum Otto engine with a harmonic working medium consisting of two
particles to explore the use of wave function symmetry as an accessible resource. It is shown …

Magic angle twisted bilayer graphene as a highly efficient quantum Otto engine

A Singh, C Benjamin - Physical Review B, 2021 - APS
At a discrete set of magic angles, twisted bilayer graphene has been shown to host
extraordinarily flat bands, correlated insulating states, unconventional superconductivity …

Quasistatic and quantum-adiabatic Otto engine for a two-dimensional material: The case of a graphene quantum dot

FJ Peña, D Zambrano, O Negrete, G De Chiara… - Physical Review E, 2020 - APS
In this work, we study the performance of a quasistatic and quantum-adiabatic magnetic Otto
cycles with a working substance composed of a single graphene quantum dot modeled by …

Magnetostrain-driven quantum engine on a graphene flake

FJ Pena, E Munoz - Physical Review E, 2015 - APS
We propose an alternative conceptual design for a graphene-based quantum engine, driven
by a superposition of mechanical strain and an external magnetic field. Engineering of strain …

Enhanced Efficiency at Maximum Power in a Fock–Darwin Model Quantum Dot Engine

FJ Peña, NM Myers, D Órdenes, F Albarrán-Arriagada… - Entropy, 2023 - mdpi.com
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 …

Relativistic quantum heat engine from uncertainty relation standpoint

P Chattopadhyay, G Paul - Scientific reports, 2019 - nature.com
Established heat engines in quantum regime can be modeled with various quantum systems
as working substances. For example, in the non-relativistic case, we can model the heat …

Strained-graphene-based highly efficient quantum heat engine operating at maximum power

A Mani, C Benjamin - Physical Review E, 2017 - APS
A strained graphene monolayer is shown to operate as a highly efficient quantum heat
engine delivering maximum power. The efficiency and power of the proposed device …

Magnetic Otto engine for an electron in a quantum dot: Classical and quantum approach

FJ Peña, O Negrete, G Alvarado Barrios, D Zambrano… - Entropy, 2019 - mdpi.com
We studied the performance of classical and quantum magnetic Otto cycle with a working
substance composed of a single quantum dot using the Fock–Darwin model with the …

Four-level refrigerator driven by photons

J Wang, Y Lai, Z Ye, J He, Y Ma, Q Liao - Physical Review E, 2015 - APS
We propose a quantum absorption refrigerator driven by photons. The model uses a four-
level system as its working substance and couples simultaneously to hot, cold, and solar …

Magnetocaloric effect in non-interactive electron systems:“The Landau Problem” and Its extension to quantum dots

OA Negrete, FJ Peña, JM Florez, P Vargas - Entropy, 2018 - mdpi.com
In this work, we report the magnetocaloric effect (MCE) in two systems of non-interactive
particles: the first corresponds to the Landau problem case and the second the case of an …