6 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…
Shortcut-error signatures in coherence-retaining endpoint work quasistatistics
Gabriella G. Damas, G. D. de Moraes Neto
Quantum work statistics differ from classical ones because initial energy coherence matters. The standard two-point measurement (TPM) gives a positive distribution but erases phase…
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…
From ergodicity to Stark many-body localization in spin chains with single-ion anisotropy
M. G. Sousa, Rafael F. P. Costa, G. D. de Moraes Neto +1
The principles of ergodicity and thermalization constitute the foundation of statistical mechanics, positing that a many-body system progressively loses its local information as it…
Persisting quantum effects in the anisotropic Rabi model at thermal equilibrium
He-Guang Xu, V. Montenegro, Gao Xianlong +2
Quantum correlations and nonclassical states are at the heart of emerging quantum technologies. Efforts to produce long-lived states of such quantum resources are a subject of tire…