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Cooling by photo-doping −− Light-induced symmetry breaking in the Hubbard model

Werner, Philipp and Eckstein, Martin and Müller, Markus and Refael, Gil (2019) Cooling by photo-doping −− Light-induced symmetry breaking in the Hubbard model. . (Unpublished) http://resolver.caltech.edu/CaltechAUTHORS:20190425-142141029

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Abstract

An elusive goal in the field of driven quantum matter is the induction of long-range order. Here, we demonstrate a mechanism based on light-induced evaporative cooling of holes in a correlated electron system. Since the entropy of a filled narrow band grows rapidly with hole doping, the isentropic transfer of holes from a doped Mott insulator to such a band results in a drop of temperature. Strongly correlated Fermi liquids and symmetry-broken states could thus be produced by dipolar excitations. Using nonequilibrium dynamical mean field theory, we show that suitably designed chirped pulses allow to realize this cooling effect. In particular, we demonstrate the emergence of antiferromagnetic order in a system which is initially in a weakly correlated state above the maximum Néel temperature. Our work suggests a general strategy for inducing strong correlation phenomena and electronic orders in light-driven materials or periodically modulated atomic gases in optical lattice potentials.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/1904.00822arXivDiscussion Paper
Additional Information:We thank A. J. Millis for helpful discussions. The calculations have been performed on the Beo04 cluster at the University of Fribourg, using a software library co-developed by H. Strand. This work has been supported by the European Research Council through ERC Consolidator Grant No. 724103 (PW) and ERC Starting Grant No. 716648 (ME). GR acknowledges the support from the ARO MURI W911NF-16-1-0361 Quantum Materials by Design with Electromagnetic Excitation sponsored by the U.S. Army, from the Institute of Quantum Information and Matter, an NSF Frontier center funded by the Gordon and Betty Moore Foundation, and from the Packard Foundation. This work was initiated at the Aspen Center for Physics, during the 2018 Summer Program. PW and GR thank the ACP for its hospitality.
Group:IQIM, Institute for Quantum Information and Matter
Funders:
Funding AgencyGrant Number
European Research Council (ERC)724103
European Research Council (ERC)716648
Army Research Office (ARO)W911NF-16-1-0361
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
David and Lucile Packard FoundationUNSPECIFIED
Record Number:CaltechAUTHORS:20190425-142141029
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190425-142141029
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94980
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:25 Apr 2019 22:14
Last Modified:25 Apr 2019 22:14

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