45 citations
- Universidade Federal de GoiásBR17 papers
- Universidade PaulistaBR8 papers
- Fermi National Accelerator LaboratoryUS4 papers
- IIT Research InstituteUS4 papers
- Syracuse UniversityUS4 papers
- Universidade de BrasíliaBR4 papers
- Universidade Federal da ParaíbaBR4 papers
- Argonne National LaboratoryUS3 papers
- California Institute of TechnologyUS3 papers
- Charles UniversityCZ3 papers
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- Dubna State UniversityRU3 papers
12 papers · 1 filter
Quantum Otto Thermal Machines Powered by Kerr Nonlinearity
Udson C. Mendes, José S. Sales, Norton G. de Almeida
We study the effect of Kerr nonlinearity in quantum thermal machines having a Kerr-nonlinear oscillator as working substance and operating under the ideal quantum Otto cycle. We fi…
Universal two-level quantum Otto machine under a squeezed reservoir
Rogério J. de Assis, José S. Sales, Jefferson A. R. da Cunha +1
We study an Otto heat machine whose working substance is a single two-level system interacting with a cold thermal reservoir and with a squeezed hot thermal reservoir. By adjusting…
Two-level quantum Otto heat engine operating with unit efficiency far from the quasi-static regime under a squeezed reservoir
Rogério J. de Assis, J. S. Sales, Udson C. Mendes +1
Recent theoretical and experimental studies in quantum heat engines show that, in the quasi-static regime, it is possible to have higher efficiency than the limit imposed by Carnot…
Unambiguous discrimination of nonorthogonal quantum states in cavity QED
R. J. de Assis, J. S. Sales, N. G. de Almeida
We propose an oversimplified scheme to unambiguously discriminate nonorthogonal quantum field states inside high-Q cavities. Our scheme, which is based on positive operator-valued…
Dispersive Jaynes-Cummings Hamiltonian describing a two-level atom interacting with a two-level single mode field
C. J. S. Ferreira, C. Valverde, B. Baseia
We investigate the time evolution of statistical properties of a single mode radiation field after its interaction with a two-level atom. The entire system is described by a disper…
On the paradoxical evolution of the number of photons in a new model of interpolating Hamiltonians
C. Valverde, B. Baseia
We introduce a new Hamiltonian model which interpolates between the Jaynes-Cummings model and other types of such Hamiltonians. It works with two interpolating parameters, rather t…