7 papers · 1 filter
Finite-size reliability of homothetic quantum Otto engines
Gabriella G. Damas, Clebson Cruz, Norton G. de Almeida +2
Homothetic quantum Otto engines---where all populated energy gaps are rescaled by a common factor---provide a reference model in which the quasistatic stochastic efficiency is traj…
Collective Mpemba-Type Relaxation in Degenerate Bosonic Modes Coupled to a Common Thermal Reservoir
I. M. de Araújo, H. Sanchez, L. F. Alves da Silva +2
We investigate collective Mpemba-type relaxation in a degenerate family of bosonic modes coupled to a common thermal reservoir. Starting from a fully symmetric M-mode description a…
Visibility-Engineered Multiparameter Sensing in Dispersive Quantum Interferometry: Identifiability, Noise Robustness, and Hardware Emulation
Lucas Ferreira R. de Moura, Daniel Y. Akamatsu, G. D. de Moraes Neto +1
We propose a dispersive interferometric protocol for simultaneously estimating the dimensionless inverse temperature of a thermal two-level ancilla and the dispersive…
Exploring the role of criticality in the quantum Otto cycle fueled by the anisotropic quantum Rabi-Stark model
He-Guang Xu, Jiasen Jin, Norton G. de Almeida +1
Quantum heat machines, encompassing heat engines, refrigerators, heaters, and accelerators, represent the forefront of quantum thermodynamics, offering a novel paradigm for convert…
Entropy production and efficiency enhancement in quantum Otto engines operating at negative temperatures
Aryadine F. de Sousa, Gabriella G. Damas, Norton G. de Almeida
Cyclic classical and quantum thermal machines show higher efficiency when the strokes are carried out quasi-statically. Recent theoretical and experimental work on figures of merit…
Trapped-ion toolbox to simulate quantum Otto heat engines
Rogério Jorge de Assis, Ciro Micheletti Diniz, Norton Gomes de Almeida +1
We present a scheme that utilizes an ion confined within a bi-dimensional trap to simulate a quantum Otto heat engine whose working substance is a two-level system. In this scheme,…