Deborah Jin

National Institute of Standards and Technology

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Jun Ye

University of Colorado Boulder

Steven A. Moses

Honeywell (United States)

Jacob P. Covey

University of Illinois Urbana-Champaign

Eric Cornell

University of Colorado Boulder

Bo Yan

Third People's Hospital of Hefei

Tara E. Drake

University of New Mexico

Bryce Gadway

Pennsylvania State University

John Gaebler

Honeywell (United States)

Rabin Paudel

Tribhuvan University

Ana María Rey

University of Colorado Boulder

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University of Colorado Boulder

National Institute of Standards and Technology

Joint Institute for Laboratory Astrophysics

University of Colorado System

Joint Quantum Institute

Harvard University

Centre National de la Recherche Scientifique

National Institute of Standards

Harvard University Press

University of Maryland, College Park

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Avalanche-mechanism loss at an atom-molecule Efimov resonance

Physical Review A (2014)

Ming-Guang Hu Ruth Bloom Deborah Jin J. Goldwin

The avalanche mechanism has been used to relate Efimov trimer states to certain enhanced atom loss features observed in ultracold-atom-gas experiments. These atom loss features are argued to be a signature of resonant atom-molecule scattering that occurs when an Efimov trimer is degenerate with the atom-molecule scattering threshold. However, observation of these atom loss features has yet to be combined with the direct observation of atom-molecule resonant scattering for any particular atomic species. In addition, recent Monte Carlo simulations were unable to reproduce a narrow loss feature. We experimentally search for enhanced atom loss features near an established scattering resonance between $^{40}\mathrm{K}$ $^{87}\mathrm{Rb}$ Feshbach molecules and $^{87}\mathrm{Rb}$ atoms. Our measurements of both the three-body recombination rate in a gas of $^{40}\mathrm{K}$ and $^{87}\mathrm{Rb}$ atoms and the ratio of the number loss for the two species do not show any broad loss feature and are therefore inconsistent with theoretical predictions that use the avalanche mechanism.

Trimer

Feshbach resonance

10.1103/physreva.90.013619

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Molécules polaires ultrafroides dans le régime quantique

Reflets de la physique (2014)

Deborah Jin Jun Ye

L’obtention en laboratoire de gaz moléculaires à des températures proches du zéro absolu permet d’étudier des réactions chimiques comme elles ne l’ont jamais été auparavant.Dans cet article, nous présentons un aperçu de certaines des techniques impliquées dans la création, le contrôle et la compréhension des molécules ultrafroides; nous décrivons aussi la première série d’expériences qui démontrent l’existence de collisions moléculaires et de réactions chimiques ultrafroides, dans un régime où elles doivent être décrites en termes de fonctions d’ondes quantiques.

10.1051/refdp/201439014

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Towards a low entropy gas of fermionic polar molecules

APS (2013)

Bryce Gadway Steven A. Moses Bo Yan Jacob P. Covey Deborah Jin

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Breakdown of the Fermi Liquid Description for Strongly Interacting Fermions

Physical Review Letters (2015)

Yoav Sagi Tara E. Drake Rabin Paudel Roman Chapurin Deborah Jin

The nature of the normal state of an ultracold Fermi gas in the BCS-BEC crossover regime is an intriguing and controversial topic. While the many-body ground state remains a condensate of paired fermions, the normal state must evolve from a Fermi liquid to a Bose gas of molecules as a function of the interaction strength. How this occurs is still largely unknown. We explore this question with measurements of the distribution of single-particle energies and momenta in a nearly homogeneous gas above ${T}_{c}$. The data fit well to a function that includes a narrow, positively dispersing peak that corresponds to quasiparticles and an ``incoherent background'' that can accommodate broad, asymmetric line shapes. We find that the quasiparticle's spectral weight vanishes abruptly as the strength of interactions is modified, which signals the breakdown of a Fermi liquid description. Such a sharp feature is surprising in a crossover.

10.1103/physrevlett.114.075301

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Citations (96)

Bragg Spectroscopy of a Strongly Interacting ^85Rb Bose-Einstein Condensate

APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts (2008)

R. J. Wild Scott B. Papp Juan Miguel Rey Pino Shai Ronen John L. Bohn

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Measurement of the Homogenous Contact in a Strongly Interacting Fermi Gas

APS (2013)

Tara E. Drake Yoav Sagi Rabin Paudel Deborah Jin

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The potential energy of a $^{40}$K Fermi gas in the BCS-BEC crossover

Bulletin of the American Physical Society (2007)

John T. Stewart John Gaebler C. A. Regal Deborah Jin

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Creation of ultracold molecules from a Fermi gas of atoms

Nature (2003)

C. A. Regal Christopher Ticknor John L. Bohn Deborah Jin

Feshbach resonance

Ultracold atom

10.1038/nature01738

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Citations (740)

Introduction to Ultracold Molecules: New Frontiers in Quantum and Chemical Physics

Chemical Reviews (2012)

Deborah Jin Jun Ye

ADVERTISEMENT RETURN TO ISSUEEditorialNEXTIntroduction to Ultracold Molecules: New Frontiers in Quantum and Chemical PhysicsDeborah S. Jin and Jun YeView Author Information JILA, National Institute of Standards and Technology and University of Colorado—Boulder, Boulder, Colorado 80309-0440, United States Cite this: Chem. Rev. 2012, 112, 9, 4801–4802Publication Date (Web):September 12, 2012Publication History Published online12 September 2012Published inissue 12 September 2012https://pubs.acs.org/doi/10.1021/cr300342xhttps://doi.org/10.1021/cr300342xeditorialACS PublicationsCopyright © This article not subject to U.S. Copyright. Published 2012 by the American Chemical Society. This publication is available under these Terms of Use. Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views5598Altmetric-Citations104LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail PDF (6 MB) Get e-AlertscloseSUBJECTS:Collisions,Magnetic properties,Molecular dynamics,Molecular interactions,Molecules Get e-Alerts

Quantum chemical

10.1021/cr300342x

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The Degenerate Unitary Bose Gas

Bulletin of the American Physical Society (2014)

Catherine Klauss Xin Xie Eric Cornell Deborah Jin

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