Bulk viscosity and contact correlations in attractive Fermi gases
The bulk viscosity determines dissipation during hydrodynamic expansion. It vanishes in scale invariant fluids, while a nonzero value quantifies the deviation from scale invariance. For the dilute Fermi gas the bulk viscosity is given exactly by the correlation function of the contact density of loc...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
15 November 2019
|
| In: |
Physical review letters
Year: 2019, Volume: 123, Issue: 20 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.123.205301 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1103/PhysRevLett.123.205301 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.123.205301 
|
| Author Notes: | Tilman Enss |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 168546775X | ||
| 003 | DE-627 | ||
| 005 | 20220817184558.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 191213s2019 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1103/PhysRevLett.123.205301 |2 doi | |
| 035 | |a (DE-627)168546775X | ||
| 035 | |a (DE-599)KXP168546775X | ||
| 035 | |a (OCoLC)1341282167 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Enss, Tilman |d 1975- |e VerfasserIn |0 (DE-588)129957704 |0 (DE-627)484982087 |0 (DE-576)189109661 |4 aut | |
| 245 | 1 | 0 | |a Bulk viscosity and contact correlations in attractive Fermi gases |c Tilman Enss |
| 264 | 1 | |c 15 November 2019 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 13.12.2019 | ||
| 520 | |a The bulk viscosity determines dissipation during hydrodynamic expansion. It vanishes in scale invariant fluids, while a nonzero value quantifies the deviation from scale invariance. For the dilute Fermi gas the bulk viscosity is given exactly by the correlation function of the contact density of local pairs. As a consequence, scale invariance is broken purely by pair fluctuations. These fluctuations give rise also to logarithmic terms in the bulk viscosity of the high-temperature nondegenerate gas. For the quantum degenerate regime I report numerical Luttinger-Ward results for the contact correlator and the dynamical bulk viscosity throughout the BEC-BCS crossover. The ratio of bulk to shear viscosity ζ/η is found to exceed the kinetic theory prediction in the quantum degenerate regime. Near the superfluid phase transition the bulk viscosity is enhanced by critical fluctuations and has observable effects on dissipative heating, expansion dynamics, and sound attenuation. | ||
| 773 | 0 | 8 | |i Enthalten in |t Physical review letters |d College Park, Md. : APS, 1958 |g 123(2019,20) Artikel-Nummer 205301, 7 Seiten |h Online-Ressource |w (DE-627)268756899 |w (DE-600)1472655-5 |w (DE-576)077609441 |x 1079-7114 |7 nnas |a Bulk viscosity and contact correlations in attractive Fermi gases |
| 773 | 1 | 8 | |g volume:123 |g year:2019 |g number:20 |a Bulk viscosity and contact correlations in attractive Fermi gases |
| 856 | 4 | 0 | |u https://doi.org/10.1103/PhysRevLett.123.205301 |x Verlag |x Resolving-System |3 Volltext |
| 856 | 4 | 0 | |u https://link.aps.org/doi/10.1103/PhysRevLett.123.205301 |x Verlag |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20191213 | ||
| 993 | |a Article | ||
| 994 | |a 2019 | ||
| 998 | |g 129957704 |a Enss, Tilman |m 129957704:Enss, Tilman |d 130000 |d 130300 |d 700000 |d 728500 |e 130000PE129957704 |e 130300PE129957704 |e 700000PE129957704 |e 728500PE129957704 |k 0/130000/ |k 1/130000/130300/ |k 0/700000/ |k 1/700000/728500/ |p 1 |x j |y j | ||
| 999 | |a KXP-PPN168546775X |e 3564593578 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"title":[{"title":"Bulk viscosity and contact correlations in attractive Fermi gases","title_sort":"Bulk viscosity and contact correlations in attractive Fermi gases"}],"origin":[{"dateIssuedDisp":"15 November 2019","dateIssuedKey":"2019"}],"id":{"eki":["168546775X"],"doi":["10.1103/PhysRevLett.123.205301"]},"person":[{"family":"Enss","given":"Tilman","roleDisplay":"VerfasserIn","display":"Enss, Tilman","role":"aut"}],"name":{"displayForm":["Tilman Enss"]},"type":{"media":"Online-Ressource","bibl":"article-journal"},"note":["Gesehen am 13.12.2019"],"recId":"168546775X","language":["eng"],"relHost":[{"id":{"issn":["1079-7114"],"zdb":["1472655-5"],"eki":["268756899"]},"origin":[{"publisherPlace":"College Park, Md.","dateIssuedDisp":"1958-","dateIssuedKey":"1958","publisher":"APS"}],"name":{"displayForm":["publ. by the American Physical Society"]},"physDesc":[{"extent":"Online-Ressource"}],"title":[{"title":"Physical review letters","title_sort":"Physical review letters"}],"titleAlt":[{"title":"Physical review letters online"},{"title":"Physical review L"}],"part":{"year":"2019","issue":"20","text":"123(2019,20) Artikel-Nummer 205301, 7 Seiten","volume":"123"},"pubHistory":["1.1958 -"],"corporate":[{"role":"isb","display":"American Physical Society","roleDisplay":"Herausgebendes Organ"}],"language":["eng"],"recId":"268756899","disp":"Bulk viscosity and contact correlations in attractive Fermi gasesPhysical review letters","note":["Gesehen am 23.08.2019"],"type":{"bibl":"periodical","media":"Online-Ressource"}}]} | ||
| SRT | |a ENSSTILMANBULKVISCOS1520 | ||