Interaction Induced Delocalization for Two Particles in a Periodic Potential

Julien Vidal; Benoît Douçot; Rémy Mosseri; Patrick Butaud

doi:10.1103/PhysRevLett.85.3906

Interaction Induced Delocalization for Two Particles in a Periodic Potential

Julien Vidal, Benoît Douçot, Rémy Mosseri, and Patrick Butaud

Phys. Rev. Lett. 85, 3906 – Published 30 October 2000

Abstract

We consider two interacting particles evolving in a one-dimensional periodic structure embedded in a magnetic field. We show that the strong localization induced by the magnetic field for particular values of the flux per unit cell is destroyed as soon as the particles interact. We study the spectral and dynamical aspects of this transition.

Received 18 April 2000

DOI:https://doi.org/10.1103/PhysRevLett.85.3906

Authors & Affiliations

Julien Vidal¹, Benoît Douçot², Rémy Mosseri³, and Patrick Butaud⁴

¹Laboratoire de Physique des Solides, CNRS UMR 8502, Université Paris Sud, Bâtiment 510, 91405 Orsay, France
²Laboratoire de Physique Théorique et Hautes Énergies, CNRS UMR 7589, Universités Paris 6 et 7, 4, place Jussieu, 75252 Paris Cedex 05 France
³Groupe de Physique des Solides, CNRS UMR 7588, Universités Paris 6 et 7, 2, place Jussieu, 75251 Paris Cedex 05 France
⁴Centre de Recherches sur les Très Basses Températures-CNRS associé à l'Université Joseph Fourier 25, avenue des Martyrs, 38042 Grenoble, France