Anderson complexes: Bound states of atoms due to Anderson localization

Paweł Matus, Krzysztof Giergiel, and Krzysztof Sacha
Phys. Rev. A 103, 023320 – Published 17 February 2021

Abstract

Atoms can form molecules if they attract each other. Here, we show that atoms are also able to form bound states not due to the attractive interaction but because of destructive interference. If the interaction potential changes in a disordered way with a change of the distance between two atoms, Anderson localization can lead to the formation of exponentially localized bound states. While disordered interaction potentials do not exist in nature, we show that they can be created in the laboratory by means of random modulation in time of the strength of the original interaction potential between atoms and objects that we dub Anderson complexes can be realized.

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  • Received 11 September 2020
  • Revised 1 February 2021
  • Accepted 2 February 2021

DOI:https://doi.org/10.1103/PhysRevA.103.023320

©2021 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Paweł Matus, Krzysztof Giergiel, and Krzysztof Sacha

  • Instytut Fizyki Teoretycznej, Uniwersytet Jagielloński, ulica Profesora Stanisława Łojasiewicza 11, PL-30-348 Kraków, Poland

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Issue

Vol. 103, Iss. 2 — February 2021

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