Experimental observation of controllable kinetic constraints in a cold atomic gas

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dc.contributor.author Valado, MM en
dc.contributor.author Simonelli, C en
dc.contributor.author Hoogerland, Maarten en
dc.contributor.author Lesanovsky, I en
dc.contributor.author Garrahan, JP en
dc.contributor.author Arimondo, E en
dc.contributor.author Ciampini, D en
dc.contributor.author Morsch, O en
dc.date.accessioned 2017-11-24T01:50:34Z en
dc.date.issued 2016 en
dc.identifier.citation Physical Review A 93(4):5 pages Article number 040701 2016 en
dc.identifier.issn 2469-9926 en
dc.identifier.uri http://hdl.handle.net/2292/36543 en
dc.description.abstract Many-body systems relaxing to equilibrium can exhibit complex dynamics even if their steady state is trivial. In situations where relaxation requires highly constrained local particle rearrangements, such as in glassy systems, this dynamics can be difficult to analyze from first principles. The essential physical ingredients, however, can be captured by idealized lattice models with so-called kinetic constraints. While so far constrained dynamics has been considered mostly as an effective and idealized theoretical description of complex relaxation, here we experimentally realize a many-body system exhibiting manifest kinetic constraints and measure its dynamical properties. In the cold Rydberg gas used in our experiments, the nature of the kinetic constraints can be tailored through the detuning of the excitation lasers from resonance. The system undergoes a dynamics which is characterized by pronounced spatial correlations or anticorrelations, depending on the detuning. Our results confirm recent theoretical predictions, and highlight the analogy between the dynamics of interacting Rydberg gases and that of certain soft-matter systems. en
dc.publisher American Physical Society en
dc.relation.ispartofseries Physical Review A en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/2469-9926/ en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Experimental observation of controllable kinetic constraints in a cold atomic gas en
dc.type Journal Article en
dc.identifier.doi 10.1103/PhysRevA.93.040701 en
pubs.issue 4 en
pubs.volume 93 en
dc.description.version VoR - Version of Record en
dc.rights.holder Copyright: American Physical Society en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Rapid Communication en
pubs.elements-id 495784 en
pubs.org-id Science en
pubs.org-id Physics en
pubs.arxiv-id 1508.04384 en
dc.identifier.eissn 2469-9934 en
pubs.number 040701 en
pubs.record-created-at-source-date 2017-11-24 en
pubs.online-publication-date 2016-04-04 en

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