Trimer Liquids and Crystals of Polar Molecules in Coupled Wires

M. Dalmonte, P. Zoller, and G. Pupillo
Phys. Rev. Lett. 107, 163202 – Published 11 October 2011
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Abstract

We investigate pairing and crystalline instabilities of bosonic and fermionic polar molecules confined to a ladder geometry. Combining analytical and numerical techniques, we show that gases of composite molecular dimers as well as trimers can be stabilized as a function of the density difference between the wires. A shallow optical lattice can pin both liquids, realizing crystals of composite bosons and fermions. We show that these exotic quantum phases are robust against conditions of confinement of the molecular gas to harmonic finite-size potentials.

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  • Received 22 March 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.163202

© 2011 American Physical Society

Authors & Affiliations

M. Dalmonte1,2, P. Zoller2, and G. Pupillo2,3

  • 1Dipartimento di Fisica dell’Università di Bologna and INFN, via Irnerio 46, 40127 Bologna, Italy
  • 2IQOQI and Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck, Austria
  • 3ISIS (UMR 7006) and IPCMS (UMR 7504), Université de Strasbourg and CNRS, Strasbourg, France

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Issue

Vol. 107, Iss. 16 — 14 October 2011

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