Lorenzo, Salvatore ORCID: 0000-0002-0827-5549, Marino, Jamir, Plastina, Francesco, Palma, G. Massimo and Apollaro, Tony J. G. (2017). Quantum Critical Scaling under Periodic Driving. Sci Rep, 7. LONDON: NATURE PUBLISHING GROUP. ISSN 2045-2322

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Abstract

Universality is key to the theory of phase transitions, stating that the equilibrium properties of observables near a phase transition can be classified according to few critical exponents. These exponents rule an universal scaling behaviour that witnesses the irrelevance of the model's microscopic details at criticality. Here we discuss the persistence of such a scaling in a one-dimensional quantum Ising model under sinusoidal modulation in time of its transverse magnetic field. We show that scaling of various quantities (concurrence, entanglement entropy, magnetic and fidelity susceptibility) endures up to a stroboscopic time tbd, proportional to the size of the system. This behaviour is explained by noticing that the low-energy modes, responsible for the scaling properties, are resilient to the absorption of energy. Our results suggest that relevant features of the universality do hold also when the system is brought out-of-equilibrium by a periodic driving.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Lorenzo, SalvatoreUNSPECIFIEDorcid.org/0000-0002-0827-5549UNSPECIFIED
Marino, JamirUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Plastina, FrancescoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Palma, G. MassimoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Apollaro, Tony J. G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-224919
DOI: 10.1038/s41598-017-06025-1
Journal or Publication Title: Sci Rep
Volume: 7
Date: 2017
Publisher: NATURE PUBLISHING GROUP
Place of Publication: LONDON
ISSN: 2045-2322
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
MANY-BODY SYSTEM; DRIVEN; ENTANGLEMENT; TRANSITION; FIDELITY; MODELMultiple languages
Multidisciplinary SciencesMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/22491

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