Supersolidity of lattice bosons immersed in strongly correlated Rydberg dressed atoms

Recent experiments have illustrated that long range two-body interactions can be induced by laser coupling atoms to highly excited Rydberg states. Stimulated by this achievement, we study supersolidity of lattice bosons in an experimentally relevant situation. In our setup, we consider two-component...

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Main Authors:	Li, Yongqiang, Geiβler, Andreas, Hofstetter, Walter, Li, Weibin
Format:	Article
Language:	English
Published:	American Physical Society 2018
Online Access:	http://eprints.nottingham.ac.uk/49205/ http://eprints.nottingham.ac.uk/49205/ http://eprints.nottingham.ac.uk/49205/ http://eprints.nottingham.ac.uk/49205/1/Supersolid_pra_submit.pdf

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spelling	nottingham-492052018-02-16T10:15:44Z http://eprints.nottingham.ac.uk/49205/ Supersolidity of lattice bosons immersed in strongly correlated Rydberg dressed atoms Li, Yongqiang Geiβler, Andreas Hofstetter, Walter Li, Weibin Recent experiments have illustrated that long range two-body interactions can be induced by laser coupling atoms to highly excited Rydberg states. Stimulated by this achievement, we study supersolidity of lattice bosons in an experimentally relevant situation. In our setup, we consider two-component atoms on a square lattice, where one species is weakly dressed to an electronically high-lying (Rydberg) state, generating a tunable, soft-core shape long-range interaction. Interactions between atoms of the second species and between the two species are characterized by local inter and intra-species interactions. Using a dynamical mean-field calculation, we find that interspecies onsite interactions can stabilize a pronounced region of supersolid phases. This is characterized by two distinctive types of supersolids, where the bare species forms supersolid phases that are immersed in strongly correlated quantum phases, i.e. a crystalline solid or supersolid of the dressed atoms. We show that the interspecies interaction leads to a roton-like instability in the bare species and therefore is crucially important to the supersolid formation. We provide a detailed calculation of the interaction potential to show how our results can be explored under current experimental conditions. American Physical Society 2018-02-01 Article PeerReviewed application/pdf en http://eprints.nottingham.ac.uk/49205/1/Supersolid_pra_submit.pdf Li, Yongqiang and Geiβler, Andreas and Hofstetter, Walter and Li, Weibin (2018) Supersolidity of lattice bosons immersed in strongly correlated Rydberg dressed atoms. Physical Review A, 97 (2). 023619/1-023619/10. ISSN 1094-1622 https://journals.aps.org/pra/abstract/10.1103/PhysRevA.97.023619 doi:10.1103/PhysRevA.97.023619 doi:10.1103/PhysRevA.97.023619
repository_type	Digital Repository
institution_category	Local University
institution	University of Nottingham Malaysia Campus
building	Nottingham Research Data Repository
collection	Online Access
language	English
description	Recent experiments have illustrated that long range two-body interactions can be induced by laser coupling atoms to highly excited Rydberg states. Stimulated by this achievement, we study supersolidity of lattice bosons in an experimentally relevant situation. In our setup, we consider two-component atoms on a square lattice, where one species is weakly dressed to an electronically high-lying (Rydberg) state, generating a tunable, soft-core shape long-range interaction. Interactions between atoms of the second species and between the two species are characterized by local inter and intra-species interactions. Using a dynamical mean-field calculation, we find that interspecies onsite interactions can stabilize a pronounced region of supersolid phases. This is characterized by two distinctive types of supersolids, where the bare species forms supersolid phases that are immersed in strongly correlated quantum phases, i.e. a crystalline solid or supersolid of the dressed atoms. We show that the interspecies interaction leads to a roton-like instability in the bare species and therefore is crucially important to the supersolid formation. We provide a detailed calculation of the interaction potential to show how our results can be explored under current experimental conditions.
format	Article
author	Li, Yongqiang Geiβler, Andreas Hofstetter, Walter Li, Weibin
spellingShingle	Li, Yongqiang Geiβler, Andreas Hofstetter, Walter Li, Weibin Supersolidity of lattice bosons immersed in strongly correlated Rydberg dressed atoms
author_facet	Li, Yongqiang Geiβler, Andreas Hofstetter, Walter Li, Weibin
author_sort	Li, Yongqiang
title	Supersolidity of lattice bosons immersed in strongly correlated Rydberg dressed atoms
title_short	Supersolidity of lattice bosons immersed in strongly correlated Rydberg dressed atoms
title_full	Supersolidity of lattice bosons immersed in strongly correlated Rydberg dressed atoms
title_fullStr	Supersolidity of lattice bosons immersed in strongly correlated Rydberg dressed atoms
title_full_unstemmed	Supersolidity of lattice bosons immersed in strongly correlated Rydberg dressed atoms
title_sort	supersolidity of lattice bosons immersed in strongly correlated rydberg dressed atoms
publisher	American Physical Society
publishDate	2018
url	http://eprints.nottingham.ac.uk/49205/ http://eprints.nottingham.ac.uk/49205/ http://eprints.nottingham.ac.uk/49205/ http://eprints.nottingham.ac.uk/49205/1/Supersolid_pra_submit.pdf
first_indexed	2018-09-06T14:05:00Z
last_indexed	2018-09-06T14:05:00Z
_version_	1610867226571702272

Supersolidity of lattice bosons immersed in strongly correlated Rydberg dressed atoms

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