TY - JOUR

T1 - Bond order via light-induced synthetic many-body interactions of ultracold atoms in optical lattices

AU - Caballero-Benitez, Santiago F.

AU - Mekhov, Igor B.

N1 - Funding Information: This work was supported by the EPSRC (EP/I004394/1). Publisher Copyright: © 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2016/11

Y1 - 2016/11

N2 - We show how bond order emerges due to light mediated synthetic interactions in ultracold atoms in optical lattices in an optical cavity. This is a consequence of the competition between both short- and long-range interactions designed by choosing the optical geometry. Light induces effective many-body interactions that modify the landscape of quantum phases supported by the typical Bose-Hubbard model. Using exact diagonalization of small system sizes in one-dimension, we present the many-body quantum phases the system can support via the interplay between the density and bond (or matter-wave coherence) interactions. We find numerical evidence to support that dimer phases due to bond order are analogous to valence bond states. Different possibilities of light-induced atomic interactions are considered that go beyond the typical atomic system with dipolar and other intrinsic interactions. This will broaden the Hamiltonian toolbox available for quantum simulation of condensed matter physics via atomic systems.

AB - We show how bond order emerges due to light mediated synthetic interactions in ultracold atoms in optical lattices in an optical cavity. This is a consequence of the competition between both short- and long-range interactions designed by choosing the optical geometry. Light induces effective many-body interactions that modify the landscape of quantum phases supported by the typical Bose-Hubbard model. Using exact diagonalization of small system sizes in one-dimension, we present the many-body quantum phases the system can support via the interplay between the density and bond (or matter-wave coherence) interactions. We find numerical evidence to support that dimer phases due to bond order are analogous to valence bond states. Different possibilities of light-induced atomic interactions are considered that go beyond the typical atomic system with dipolar and other intrinsic interactions. This will broaden the Hamiltonian toolbox available for quantum simulation of condensed matter physics via atomic systems.

KW - light-matter interation

KW - optical lattices

KW - order parameters

KW - quantum many-body physics

KW - quantum simulation

KW - quantum solids

KW - valence bond solids

UR - http://www.scopus.com/inward/record.url?scp=84996599808&partnerID=8YFLogxK

U2 - 10.1088/1367-2630/18/11/113010

DO - 10.1088/1367-2630/18/11/113010

M3 - Article

AN - SCOPUS:84996599808

VL - 18

JO - New Journal of Physics

JF - New Journal of Physics

SN - 1367-2630

IS - 11

M1 - 113010

ER -