Observation of a strong atom-dimer attraction in a mass-imbalanced fermi-fermi mixture

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Observation of a strong atom-dimer attraction in a mass-imbalanced fermi-fermi mixture. / Jag, Michael; Zaccanti, Matteo; Cetina, Marko; Lous, Rianne S.; Schreck, Florian; Grimm, Rudolf; Petrov, Dmitry S.; Levinsen, Jesper Fredenslund.

In: Physical Review Letters, Vol. 112, No. 7, 075302, 21.02.2014.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Jag, M, Zaccanti, M, Cetina, M, Lous, RS, Schreck, F, Grimm, R, Petrov, DS & Levinsen, JF 2014, 'Observation of a strong atom-dimer attraction in a mass-imbalanced fermi-fermi mixture', Physical Review Letters, vol. 112, no. 7, 075302. https://doi.org/10.1103/PhysRevLett.112.075302

APA

Jag, M., Zaccanti, M., Cetina, M., Lous, R. S., Schreck, F., Grimm, R., ... Levinsen, J. F. (2014). Observation of a strong atom-dimer attraction in a mass-imbalanced fermi-fermi mixture. Physical Review Letters, 112(7), [075302]. https://doi.org/10.1103/PhysRevLett.112.075302

CBE

Jag M, Zaccanti M, Cetina M, Lous RS, Schreck F, Grimm R, Petrov DS, Levinsen JF. 2014. Observation of a strong atom-dimer attraction in a mass-imbalanced fermi-fermi mixture. Physical Review Letters. 112(7). https://doi.org/10.1103/PhysRevLett.112.075302

MLA

Vancouver

Jag M, Zaccanti M, Cetina M, Lous RS, Schreck F, Grimm R et al. Observation of a strong atom-dimer attraction in a mass-imbalanced fermi-fermi mixture. Physical Review Letters. 2014 Feb 21;112(7). 075302. https://doi.org/10.1103/PhysRevLett.112.075302

Author

Jag, Michael ; Zaccanti, Matteo ; Cetina, Marko ; Lous, Rianne S. ; Schreck, Florian ; Grimm, Rudolf ; Petrov, Dmitry S. ; Levinsen, Jesper Fredenslund. / Observation of a strong atom-dimer attraction in a mass-imbalanced fermi-fermi mixture. In: Physical Review Letters. 2014 ; Vol. 112, No. 7.

Bibtex

@article{664ee0e0c5a548dc90c79eba2696e9d4,
title = "Observation of a strong atom-dimer attraction in a mass-imbalanced fermi-fermi mixture",
abstract = "We investigate a mixture of ultracold fermionic K40 atoms and weakly bound Li6K40 dimers on the repulsive side of a heteronuclear atomic Feshbach resonance. By radio-frequency spectroscopy we demonstrate that the normally repulsive atom-dimer interaction is turned into a strong attraction. The phenomenon can be understood as a three-body effect in which two heavy K40 fermions exchange the light Li6 atom, leading to attraction in odd partial-wave channels (mainly p wave). Our observations show that mass imbalance in a fermionic system can profoundly change the character of interactions as compared to the well-established mass-balanced case.",
author = "Michael Jag and Matteo Zaccanti and Marko Cetina and Lous, {Rianne S.} and Florian Schreck and Rudolf Grimm and Petrov, {Dmitry S.} and Levinsen, {Jesper Fredenslund}",
year = "2014",
month = "2",
day = "21",
doi = "10.1103/PhysRevLett.112.075302",
language = "English",
volume = "112",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "AMER PHYSICAL SOC",
number = "7",

}

RIS

TY - JOUR

T1 - Observation of a strong atom-dimer attraction in a mass-imbalanced fermi-fermi mixture

AU - Jag, Michael

AU - Zaccanti, Matteo

AU - Cetina, Marko

AU - Lous, Rianne S.

AU - Schreck, Florian

AU - Grimm, Rudolf

AU - Petrov, Dmitry S.

AU - Levinsen, Jesper Fredenslund

PY - 2014/2/21

Y1 - 2014/2/21

N2 - We investigate a mixture of ultracold fermionic K40 atoms and weakly bound Li6K40 dimers on the repulsive side of a heteronuclear atomic Feshbach resonance. By radio-frequency spectroscopy we demonstrate that the normally repulsive atom-dimer interaction is turned into a strong attraction. The phenomenon can be understood as a three-body effect in which two heavy K40 fermions exchange the light Li6 atom, leading to attraction in odd partial-wave channels (mainly p wave). Our observations show that mass imbalance in a fermionic system can profoundly change the character of interactions as compared to the well-established mass-balanced case.

AB - We investigate a mixture of ultracold fermionic K40 atoms and weakly bound Li6K40 dimers on the repulsive side of a heteronuclear atomic Feshbach resonance. By radio-frequency spectroscopy we demonstrate that the normally repulsive atom-dimer interaction is turned into a strong attraction. The phenomenon can be understood as a three-body effect in which two heavy K40 fermions exchange the light Li6 atom, leading to attraction in odd partial-wave channels (mainly p wave). Our observations show that mass imbalance in a fermionic system can profoundly change the character of interactions as compared to the well-established mass-balanced case.

U2 - 10.1103/PhysRevLett.112.075302

DO - 10.1103/PhysRevLett.112.075302

M3 - Journal article

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 7

M1 - 075302

ER -