Research output: Contribution to journal › Article › peer-review
Bond order via light-induced synthetic many-body interactions of ultracold atoms in optical lattices. / Caballero-Benitez, Santiago F.; Mekhov, Igor B.
In: New Journal of Physics, Vol. 18, No. 11, 113010, 11.2016.Research output: Contribution to journal › Article › peer-review
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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 -
ID: 69877889