Information content in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>F</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>R</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math>brane models with nonconstant curvature

Correa, R. A. C.; Moraes, P. H. R. S.; Dutra, A. de Souza; Rocha, Roldão da

doi:10.1103/physrevd.92.126005

Cited by 21 publications

(41 citation statements)

References 34 publications

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“…This incoherentsecular situation was nicely explored in Ref. 47 , where different mechanisms responsible for irreversibility in QARs were classified: internal dissipation, which corresponds to the competition between cooling pathways that are optimized at different parameters, and heat leaks, a direct heat exchange between the work and cold baths.…”

Section: B Four-level Qar With Coherencesmentioning

confidence: 99%

“…[43][44][45] . Recent studies on QARs looked at physical realizations 46 , the impact of internal leaks and dissipation 47 , and the roles of topology 48 , internal couplings 28 , and strong system-bath coupling effects 49 . Other questions of interest include the cooling performance of the QAR at maximum power 42,50,51 , and the behavior of its current fluctuations 52 .…”

Section: Introductionmentioning

confidence: 99%

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Coherence and decoherence in quantum absorption refrigerators

Kilgour

Segal

2018

Phys. Rev. E

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Absorption refrigerators transfer thermal energy from a cold reservoir to a hot reservoir using input energy from a third, so-called work reservoir. We examine the operation of quantum absorption refrigerators when coherences between eigenstates survive in the steady state limit. In our model, the working medium comprises a discrete, four-level system. Several studies on related setups have demonstrated the performance-enhancing potential of steady-state eigenbasis quantum coherences. By contrast, in our model such coherences generally quench the cooling current in the refrigerator, while minimally affecting the coefficient of performance (cooling efficiency). We rationalize the behavior of the four-level refrigerator by studying three-level model systems for energy transport and refrigeration. Our calculations further illuminate the shortcomings of secular quantum master equations and the necessity of employing dynamical equations of motion that retain couplings between population and coherences.

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Section: B Four-level Qar With Coherencesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Coherence and decoherence in quantum absorption refrigerators

Kilgour

Segal

2018

Phys. Rev. E

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“…Finally, in braneworld scenarios it was shown that CE can be employed to demonstrate a high organizational degree in the structure of the system configuration for large values of a parameter of the sine-Gordon model [47]. The entropic information-measure in the context of f (R) braneworlds with non-constant curvature has also been studied [48].…”

Section: Introductionmentioning

confidence: 99%

Configurational entropy in $$f\,(R,T\,)$$ f ( R , T ) brane models

Correa

Moraes

2016

Eur. Phys. J. C

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In this work we investigate generalized theories of gravity in the so-called configurational entropy (CE) context. We show, by means of this information-theoretical measure, that a stricter bound on the parameter of f (R, T ) brane models arises from the CE. We find that these bounds are characterized by a valley region in the CE profile, where the entropy is minimal. We argue that the CE measure can play a new role and might be an important additional approach to selecting parameters in modified theories of gravitation.

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“…The energy density is indeed suitable for defining the correspondent conditional entropy because it encodes more enhanced elements of the physical system. Of course, it is much more evident for spatially localized structures, as those described by lumps and kinks, and by an infinite set of one dimensional (non)topological defects [21][22][23][24][25][26][27][28][29]. For the energy density Fourier decomposed into components weighted by the modes k n , the normalized structure factor is constructed upon the collective coordinates as [3,4,11]…”

Section: Configurational Entropy In the Elementary Contextmentioning

confidence: 99%

Cosmological comoving behavior of the configurational entropy

Bernardini

Rocha

2019

Physics Letters B

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It has been shown that a functional dependence of the configurational entropy (CE) density exhibits a cosmological comoving behavior related to the scale parameter, a, of the FRW flat universe. Such a circumstantial comoving behavior shows that the CE evolves with a −3 for fermionic and bosonic radiation and with a −3/2 for non-relativistic fermionic matter. The results are discussed in the domain of matter and radiation, as well as in a simplified context of the ΛCDM cosmology. Our results suggest that the CE can work as a theoretical driver for particle and nuclear interactions in the context of large scale cosmic events.

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Information content inF(R)brane models with nonconstant curvature

Cited by 21 publications

References 34 publications

Coherence and decoherence in quantum absorption refrigerators

Coherence and decoherence in quantum absorption refrigerators

Configurational entropy in $$f\,(R,T\,)$$ f ( R , T ) brane models

Cosmological comoving behavior of the configurational entropy

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