5 papers
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…
Coherence-Preserving Fluctuation Diagnostics for an Engineered Population-Inverted Qubit Otto Engine
Gabriella G. Damas, Norton G. de Almeida, Gao Xianlong +1
Finite-time quantum thermal machines require diagnostics beyond average work and efficiency, because microscopic engines operate in regimes where fluctuations, incomplete thermaliz…
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,…
Engineered Kerr Nonlinearities for Precise Quantum Control of Fock States
Gabriella G. Damas, Ciro Micheletti Diniz, Norton G. de Almeida +2
We present a practical design framework for high-fidelity quantum control in coupled Kerr-nonlinear oscillators, directly addressing the challenge of spectral crowding. We show tha…
Probing the Limits of Dispersive Quantum Thermometry with a Nonlinear Mach-Zehnder-Based Quantum Simulator
Daniel Y. Akamatsu, Lucas Ferreira R. de Moura, Gabriella G. Damas +3
Temperature estimation, known as thermometry, is a critical sensing task for physical systems operating in the quantum regime. Indeed, thermal fluctuations can significantly degrad…