Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Santos, Jonas F."'
Gaussian quantum channels are relevant operations in continuous variable systems. In general, given an arbitrary state, the action on it is well-known provided that the quantum channels are completely characterized. In this work, we consider the inve
Externí odkaz:
http://arxiv.org/abs/2409.09675
Autor:
da Silva, Pedro P., Vieira, Carlos H. S., Santos, Jonas F. G., Marinho, Lucas S., Sampaio, Marcos, da Paz, Irismar G.
We explore the effects of Markovian bath coupling and initial position-momentum correlations on the coherence and purity of Gaussian quantum states. Our analysis focuses on the roles these factors play in the dynamics of quantum coherence, coherence
Externí odkaz:
http://arxiv.org/abs/2404.15473
Quantum thermal machines are powerful platforms for investigating how quantum effects impact the energy flow between different systems. Here, we investigate a two-stroke cycle in which spin-squeezing effects are intrinsically switched on during the e
Externí odkaz:
http://arxiv.org/abs/2402.00852
Autor:
Santos, Jonas F. G.
Publikováno v:
Eur. Phys. J. Plus 139, 909 (2024)
High control in the preparation and manipulation of states is an experimental and theoretical important task in many quantum protocols. Shortcuts to adiabaticity methods allow to obtain desirable states of a adiabatic dynamics but in short time scale
Externí odkaz:
http://arxiv.org/abs/2310.09576
Autor:
Vieira, Carlos H. S., de Oliveira, Jefferson L. D., Santos, Jonas F. G., Dieguez, Pedro R., Serra, Roberto M.
Publikováno v:
J. Magn. Reson. Open 16-17, 100105 (2023)
Quantum thermodynamics seeks to extend non-equilibrium stochastic thermodynamics to small quantum systems where non-classical features are essential to its description. Such a research area has recently provided meaningful theoretical and experimenta
Externí odkaz:
http://arxiv.org/abs/2303.08917
Publikováno v:
Physica A Volume 632, Part 2, 15 December 2023, 129342
Measurement-based quantum thermal machines are fascinating models of thermodynamic cycles where measurement protocols play an important role in the performance and functioning of the cycle. Despite theoretical advances, interesting experimental imple
Externí odkaz:
http://arxiv.org/abs/2302.01181
We study the effect of the intermode coupling in the generation of coherence when two bosonic modes are bilinearly coupled. We consider the case for which the two modes are weakly coupled and the rotating-wave approximation (RWA) applies and the case
Externí odkaz:
http://arxiv.org/abs/2208.10649
The recent advances in the study of thermodynamics of microscopic processes have driven the search for new developments in energy converters utilizing quantum effects. We here propose a universal framework to describe the thermodynamics of a quantum
Externí odkaz:
http://arxiv.org/abs/2108.07995
The thermodynamic properties of quantum heat engines are stochastic owing to the presence of thermal and quantum fluctuations. We here experimentally investigate the efficiency and nonequilibrium entropy production statistics of a spin-1/2 quantum Ot
Externí odkaz:
http://arxiv.org/abs/2104.13427
Autor:
Santos, Jonas F. G., Luiz, Fabricio S.
We present results concerning aspects of quantum thermodynamics under the background of non-Hermitian quantum mechanics for the dynamics of a quantum harmonic oscillator. Since a better control over the parameters in quantum thermodynamics processes
Externí odkaz:
http://arxiv.org/abs/2103.12678