53 citations · 134 across the 14 of their papers we have counts for
19 papers
Probing quasiperiodic spectral accessibility with a finite-rate quantum Otto cycle
Shujie Cheng, Lucas C. Céleri, Norton G. de Almeida +2
Quasiperiodic systems combine sharply different spectral and localisation regimes with a dense hierarchy of dynamical time scales. We show that a finite-rate quantum Otto cycle can…
Engineering Quantum Interactions: From Effective Models to Validated Physical Predictions
Sinara S. Dourado, Ciro Micheletti Diniz, Gabriel P. L. M. Fernandes +3
Effective models make complex quantum dynamics tractable by retaining only the states, processes, and timescales relevant to a given physical question. Their predictive power, howe…
Preparation-controlled relaxation in an overdamped RLC circuit: A pedagogical route to the spectral Mpemba effect
Matheus H. dos Santos, Cler T. Garcez, Jeveson C. da Silva +2
Can a system with more stored energy cool faster than one with less? An overdamped resistor--inductor--capacitor (RLC) circuit offers a classical, experimentally accessible spectra…
Occupation-selective photon-pair interactions in a flux-pumped SQUID resonator
L. N. Ferreira, D. Z. Rossatto, A. S. M. de Castro +1
Flux-pumped Josephson circuits provide a versatile platform for parametric photon generation and multimode bosonic control. We identify an occupation-conditioned pair interaction t…
Collective thermalization, work reliability, and resource bounds in a population-inverted Dicke Otto engine
Cler T. Garcez, Gabriella G. Damas, Norton G. de Almeida +1
Population inversion and collective relaxation can both enhance the performance of a quantum heat engine, but through distinct mechanisms. We study a quantum Otto engine whose work…
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…
Dissipative optomechanical preparation of non-Gaussian mechanical entanglement
Gentil Dias de Moraes Neto, Victor Montenegro
Entanglement had played a crucial role in developing frontier technologies as a critical resource, for instance, in quantum teleportation and quantum sensing schemes. Notably, than…
Quantum state transfer in optomechanical arrays
G. D. de Moraes Neto, F. M. Andrade, V. Montenegro +1
Quantum state transfer between distant nodes is at the heart of quantum processing and quantum networking. Stimulated by this, we propose a scheme where one can highly achieve quan…
Upper-bounded and sliced Jaynes- and anti-Jaynes-Cummings Hamiltonians and Liouvillians in cavity quantum electrodynamics
W. Rosado, G. D. de Moraes Neto, F. O. Prado +1
In this paper, we present a protocol to engineer upper-bounded and sliced Jaynes-Cummings and anti-Jaynes-Cummings Hamiltonians in cavity quantum electrodynamics. In the upper-boun…
Steady entanglements in bosonic dissipative networks
G. D. de Moraes Neto, W. Rosado, F. O. Prado +1
In this letter we propose a scheme for the preparation of steady entanglements in bosonic dissipative networks. We describe its implementation in a system of coupled cavities inter…
Slicing the Fock space for state production and protection
R. F. Rossetti, G. D. de Moraes Neto, F. O. Prado +2
In this letter we present a protocol to engineer interactions confined to subspaces of the Fock space in trapped ions: we show how to engineer upper-, lower-bounded and sliced Jayn…
An exact master equation for the system-reservoir dynamics under the strong coupling regime and non-Markovian dynamics
T. B. Batalhão, G. D. de Moraes Neto, M. A. de Ponte +1
In this paper we present a method to derive an exact master equation for a bosonic system coupled to a set of other bosonic systems, which plays the role of the reservoir, under th…
Steady Fock states via atomic reservoir
F. O. Prado, W. Rosado, G. D. de Moraes Neto +1
In this letter we present a strategy that combines the action of cavity damping mechanisms with that of an engineered atomic reservoir to drive an initial thermal distribution to a…
Quantum atomic lithography via cross-cavity optical Stern-Gerlach setup
C. E. Máximo, T. B. Batalhão, R. Bachelard +3
We present a fully quantum scheme to perform 2D atomic lithography based on a cross-cavity optical Stern-Gerlach setup: an array of two mutually orthogonal cavities crossed by an a…