Abstract
A key quantity in strongly interacting resonant Fermi gases is the contact C, which characterizes numerous properties such as the momentum distribution at large momenta or the pair correlation function at short distances. The temperature dependence of C was measured at unitarity, where existing theoretical predictions differ substantially even at the qualitative level. We report accurate data for the contact and the momentum distribution of the unitary gas in the normal phase, obtained by bold diagrammatic Monte Carlo and Borel resummation. Our results agree with experimental data within error bars and provide crucial benchmarks for the development of advanced theoretical treatments and precision measurements.
| Original language | English |
|---|---|
| Article number | 130406 |
| Journal | Physical Review Letters |
| Volume | 121 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 2018 Sep 27 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Contact and Momentum Distribution of the Unitary Fermi Gas. / Rossi, R.; Ohgoe, Takahiro; Kozik, E.; Prokof'Ev, N.; Svistunov, B.; Van Houcke, K.; Werner, F.
In: Physical Review Letters, Vol. 121, No. 13, 130406, 27.09.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Contact and Momentum Distribution of the Unitary Fermi Gas
AU - Rossi, R.
AU - Ohgoe, Takahiro
AU - Kozik, E.
AU - Prokof'Ev, N.
AU - Svistunov, B.
AU - Van Houcke, K.
AU - Werner, F.
PY - 2018/9/27
Y1 - 2018/9/27
N2 - A key quantity in strongly interacting resonant Fermi gases is the contact C, which characterizes numerous properties such as the momentum distribution at large momenta or the pair correlation function at short distances. The temperature dependence of C was measured at unitarity, where existing theoretical predictions differ substantially even at the qualitative level. We report accurate data for the contact and the momentum distribution of the unitary gas in the normal phase, obtained by bold diagrammatic Monte Carlo and Borel resummation. Our results agree with experimental data within error bars and provide crucial benchmarks for the development of advanced theoretical treatments and precision measurements.
AB - A key quantity in strongly interacting resonant Fermi gases is the contact C, which characterizes numerous properties such as the momentum distribution at large momenta or the pair correlation function at short distances. The temperature dependence of C was measured at unitarity, where existing theoretical predictions differ substantially even at the qualitative level. We report accurate data for the contact and the momentum distribution of the unitary gas in the normal phase, obtained by bold diagrammatic Monte Carlo and Borel resummation. Our results agree with experimental data within error bars and provide crucial benchmarks for the development of advanced theoretical treatments and precision measurements.
UR - http://www.scopus.com/inward/record.url?scp=85054168217&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85054168217&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.121.130406
DO - 10.1103/PhysRevLett.121.130406
M3 - Article
C2 - 30312096
AN - SCOPUS:85054168217
VL - 121
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 13
M1 - 130406
ER -