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  The quantum transverse-field Ising chain in circuit quantum electrodynamics: effects of disorder on the nonequilibrium dynamics

Viehmann, O., von Delft, J., & Marquardt, F. (2013). The quantum transverse-field Ising chain in circuit quantum electrodynamics: effects of disorder on the nonequilibrium dynamics. New Journal of Physics, 15: 035013. doi:10.1088/1367-2630/15/3/035013.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0001-D56A-8 Version Permalink: https://hdl.handle.net/21.11116/0000-0004-738A-F
Genre: Journal Article

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 Creators:
Viehmann, Oliver1, Author
von Delft, Jan1, Author
Marquardt, Florian2, 3, Author           
Affiliations:
1external, ou_persistent22              
2Marquardt Group, Associated Groups, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364694              
3University of Erlangen Nuremberg, Inst Theoret Phys, D-91058 Erlangen, Germany , ou_persistent22              

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 Abstract: We study several dynamical properties of a recently proposed implementation of the quantum transverse-field Ising chain in the framework of circuit quantum electrodynamics (QED). Particular emphasis is placed on the effects of disorder on the nonequilibrium behavior of the system. We show that small amounts of fabrication-induced disorder in the system parameters do not jeopardize the observation of previously predicted phenomena. Based on a numerical extraction of the mean free path of a wave packet in the system, we also provide a simple quantitative estimate for certain disorder effects on the nonequilibrium dynamics of the circuit QED quantum simulator. We discuss the transition from weak to strong disorder, characterized by the onset of Anderson localization of the system's wave functions, and the qualitatively different dynamics it leads to.

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Language(s): eng - English
 Dates: 2013-03-12
 Publication Status: Issued
 Pages: -
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 Identifiers: DOI: 10.1088/1367-2630/15/3/035013
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Title: New Journal of Physics
  Abbreviation : New J. Phys.
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 15 Sequence Number: 035013 Start / End Page: - Identifier: ISSN: 1367-2630
CoNE: https://pure.mpg.de/cone/journals/resource/954926913666