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Quantum thermodynam...
Quantum thermodynamics at impurity quantum phase transitions
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Bayat, A. (författare)
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De Chiara, G. (författare)
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Apollaro, T. J. G. (författare)
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Paganelli, S. (författare)
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- Johannesson, Henrik, 1953 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Sodano, P. (författare)
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Bose, S. (författare)
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(creator_code:org_t)
- 2020-03-01
- 2020
- Engelska.
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Ingår i: Springer Proceedings in Physics. - Cham : Springer International Publishing. - 0930-8989. ; 239, s. 361-373
- Relaterad länk:
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https://pureadmin.qu...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The study of quantum thermodynamics, i.e. equilibrium and non-equilibrium thermodynamics of quantum systems, has been applied to various many-body problems, including quantum phase transitions. An important question is whether out-of-equilibrium quantities from this emerging field, such as fluctuations of work, exhibit scaling after a sudden quench. In particular, it is very interesting to explore this problem in impurity models where the lack of an obvious symmetry breaking at criticality makes it very challenging to characterize. Here, by considering a spin emulation of the two impurity Kondo model and performing density matrix renormalization group computations, we establish that the irreversible work produced in a quench exhibits finite-size scaling at quantum criticality. Our approach predicts the equilibrium critical exponents for the crossover length and the order parameter of the model, and, moreover, implies a new exponent for the rescaled irreversible work. © Springer Nature Switzerland AG 2020.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Criticality (nuclear fission)
- Quantum optics
- Statistical mechanics
- Thermodynamics
- Density matrix renormalization group
- Finite size scaling
- Many-body problems
- Non equilibrium thermodynamics
- Out of equilibrium
- Quantum criticality
- Quantum phase transitions
- Quantum thermodynamics
- Phase transitions
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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