Anderson localization of composite particles

Suzuki, Fumika; Lemeshko, Mikhail; Zurek, Wojciech H.; Krems, Roman V.

Anderson localization of composite particles

Suzuki F, Lemeshko M, Zurek WH, Krems RV. 2021. Anderson localization of composite particles. Physical Review Letters. 127(16), 160602.

Download (ext.)

https://arxiv.org/abs/2011.06279

DOI

10.1103/physrevlett.127.160602

Journal Article | Published | English

Scopus indexed

Author

Suzuki, Fumika^ISTA ; Lemeshko, Mikhail^ISTA ; Zurek, Wojciech H.; Krems, Roman V.

Department

Lemeshko Group

Grant

ISTplus - Postdoctoral Fellowships
Angulon: physics and applications of a new quasiparticle

Abstract

We investigate the effect of coupling between translational and internal degrees of freedom of composite quantum particles on their localization in a random potential. We show that entanglement between the two degrees of freedom weakens localization due to the upper bound imposed on the inverse participation ratio by purity of a quantum state. We perform numerical calculations for a two-particle system bound by a harmonic force in a 1D disordered lattice and a rigid rotor in a 2D disordered lattice. We illustrate that the coupling has a dramatic effect on localization properties, even with a small number of internal states participating in quantum dynamics.

Keywords

General Physics and Astronomy

Publishing Year

2021

Date Published

2021-10-12

Journal Title

Physical Review Letters

Acknowledgement

We acknowledge helpful discussions with W. G. Unruh and A. Rodriguez. F. S. is supported by European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant No. 754411. M. L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). W. H. Z. is supported by Department of Energy under the Los Alamos National Laboratory LDRD Program as well as by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division, Condensed Matter Theory Program. R. V. K. is supported by NSERC of Canada.

Volume

127

Issue

Article Number

160602

ISSN

0031-9007

eISSN

1079-7114

IST-REx-ID

10134

Cite this

Suzuki F, Lemeshko M, Zurek WH, Krems RV. Anderson localization of composite particles. Physical Review Letters. 2021;127(16). doi:10.1103/physrevlett.127.160602

Suzuki, F., Lemeshko, M., Zurek, W. H., & Krems, R. V. (2021). Anderson localization of composite particles. Physical Review Letters. American Physical Society . https://doi.org/10.1103/physrevlett.127.160602

Suzuki, Fumika, Mikhail Lemeshko, Wojciech H. Zurek, and Roman V. Krems. “Anderson Localization of Composite Particles.” Physical Review Letters. American Physical Society , 2021. https://doi.org/10.1103/physrevlett.127.160602.

F. Suzuki, M. Lemeshko, W. H. Zurek, and R. V. Krems, “Anderson localization of composite particles,” Physical Review Letters, vol. 127, no. 16. American Physical Society , 2021.

Suzuki F, Lemeshko M, Zurek WH, Krems RV. 2021. Anderson localization of composite particles. Physical Review Letters. 127(16), 160602.

Suzuki, Fumika, et al. “Anderson Localization of Composite Particles.” Physical Review Letters, vol. 127, no. 16, 160602, American Physical Society , 2021, doi:10.1103/physrevlett.127.160602.

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