Zobrazeno 1 - 10
of 1 795
pro vyhledávání: '"Neto, G"'
Quantum heat machines, encompassing heat engines, refrigerators, heaters, and accelerators, represent the forefront of quantum thermodynamics, offering a novel paradigm for converting heat energy into useful mechanical work. Leveraging quantum mechan
Externí odkaz:
http://arxiv.org/abs/2407.09027
This study investigates phase-driven symmetry breaking leading to superradiance phase transitions in cascaded non-Hermitian quantum Rabi cavities. Non-Hermiticity is introduced via the phase coupling $\varphi$ between the atom and the optical field.
Externí odkaz:
http://arxiv.org/abs/2406.16576
We apply quantum cosmology to investigate the early moments of a Friedmann-Lema\^itre-Robertson-Walker (FLRW) cosmological model, using Ho\v{r}ava-Lifshitz (HL) as the gravitational theory. The matter content of the model is a dust perfect fluid. We
Externí odkaz:
http://arxiv.org/abs/2403.05667
Autor:
Oliveira-Neto, G., Abreu, T. M.
In the present work, we study the dynamical evolution of an homogeneous and anisotropic, noncommutative (NC) Bianchi I (BI) model coupled to a radiation perfect fluid. Our first motivation is determining if the present model tends to an homogeneous a
Externí odkaz:
http://arxiv.org/abs/2403.03347
Autor:
Burgos, M. González, Sousa-Neto, G.
Publikováno v:
J. Differential Equations 269 (2020) 4286-4331
In this paper, we present some controllability results for linear and nonlinear phase-field systems of Caginalp type considered in a bounded interval of $\mathbb R$ when the scalar control force acts on the temperature equation of the system by means
Externí odkaz:
http://arxiv.org/abs/2401.17067
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 evolves. Nevertheless, these principles can be disrupted when thermal
Externí odkaz:
http://arxiv.org/abs/2401.03111
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 tireless pursuit. Among several platforms useful for quantum technology, t
Externí odkaz:
http://arxiv.org/abs/2309.02123
In the present work, we study the birth of a homogeneous and isotropic Friedmann Lemaitre Robertson Walker (FLRW) cosmological model, considering Horava Lifshitz (HL) as the gravitational theory. The matter content of the model is a radiation perfect
Externí odkaz:
http://arxiv.org/abs/2308.07478
In this paper we study a quantum Otto thermal machine where the working substance is composed of N identical qubits coupled to a single mode of a bosonic field, where the atoms and the field interact with a reservoir, as described by the so-called op
Externí odkaz:
http://arxiv.org/abs/2308.06664
Within the framework of investigating the link between central super massive black holes in the core of galaxies and the galaxies themselves, we detected a variable X-ray source in the center of CGCG 077-102 NED02, member of the CGCG 077-102 galaxy p
Externí odkaz:
http://arxiv.org/abs/2307.10772