Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/242852
Type: Artigo
Title: Shortcuts to adiabaticity from linear response theory
Author: Acconcia, Thiago V.
Bonança, Marcus V. S.
Deffner, Sebastian
Abstract: Ashortcut to adiabaticity is a finite-time process that produces the same final state as would result from infinitely slow driving. We show that such shortcuts can be found for weak perturbations from linear response theory. With the help of phenomenological response functions, a simple expression for the excess work is found-quantifying the nonequilibrium excitations. For two specific examples, i.e., the quantum parametric oscillator and the spin 1/2 in a time-dependent magnetic field, we show that finite-time zeros of the excess work indicate the existence of shortcuts. Finally, we propose a degenerate family of protocols, which facilitates shortcuts to adiabaticity for specific and very short driving times.
Ashortcut to adiabaticity is a finite-time process that produces the same final state as would result from infinitely slow driving. We show that such shortcuts can be found for weak perturbations from linear response theory. With the help of phenomenological response functions, a simple expression for the excess work is found-quantifying the nonequilibrium excitations. For two specific examples, i.e., the quantum parametric oscillator and the spin 1/2 in a time-dependent magnetic field, we show that finite-time zeros of the excess work indicate the existence of shortcuts. Finally, we propose a degenerate family of protocols, which facilitates shortcuts to adiabaticity for specific and very short driving times.
Subject: Campos magnéticos, Termodinâmica, Mecânica estatística de não-equilíbrio
Country: Estados Unidos
Editor: American Physical Society
Citation: Shortcuts To Adiabaticity From Linear Response Theory. Amer Physical Soc, v. 92, p. OCT-2015.
Rights: aberto
Identifier DOI: 10.1103/PhysRevE.92.042148
Address: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.92.042148
Date Issue: 2015
Appears in Collections:IFGW - Artigos e Outros Documentos

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