Ground-State Properties of Unitary Bosons: From Clusters to Matter
Abstract
The properties of cold Bose gases at unitarity have been extensively investigated in the last few years both theoretically and experimentally. In this paper we use a family of interactions tuned to two-body unitarity and very weak three-body binding to demonstrate the universal properties of both clusters and matter. We determine the universal properties of finite clusters up to 60 particles and, for the first time, explicitly demonstrate the saturation of energy and density with particle number and compare with bulk properties. At saturation in the bulk we determine the energy, density, two- and three-body contacts, and the condensate fraction. We find that uniform matter is more bound than three-body clusters by nearly 2 orders of magnitude, the two-body contact is very large in absolute terms, and yet the condensate fraction is also very large, greater than 90%. Finally, equilibrium properties of these systems may be experimentally accessible through rapid quenching of weakly interacting boson superfluids.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of Paris-Sud, Orsay (France). Inst. of Nuclear Physics; Univ. of Arizona, Tucson, AZ (United States). Dept. of Physics
- Univ. of Campinas (Brazil). Inst. of Physics Gleb Wataghin
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); European Union (EU)
- OSTI Identifier:
- 1415405
- Alternate Identifier(s):
- OSTI ID: 1412949
- Report Number(s):
- LA-UR-17-25071
Journal ID: ISSN 0031-9007; TRN: US1800803
- Grant/Contract Number:
- AC52-06NA25396; AC02-05CH11231; FG02-04ER41338; 654002
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 119; Journal Issue: 22; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Atomic and Nuclear Physics
Citation Formats
Carlson, J., Gandolfi, S., van Kolck, U., and Vitiello, S. A. Ground-State Properties of Unitary Bosons: From Clusters to Matter. United States: N. p., 2017.
Web. doi:10.1103/PhysRevLett.119.223002.
Carlson, J., Gandolfi, S., van Kolck, U., & Vitiello, S. A. Ground-State Properties of Unitary Bosons: From Clusters to Matter. United States. https://doi.org/10.1103/PhysRevLett.119.223002
Carlson, J., Gandolfi, S., van Kolck, U., and Vitiello, S. A. Wed .
"Ground-State Properties of Unitary Bosons: From Clusters to Matter". United States. https://doi.org/10.1103/PhysRevLett.119.223002. https://www.osti.gov/servlets/purl/1415405.
@article{osti_1415405,
title = {Ground-State Properties of Unitary Bosons: From Clusters to Matter},
author = {Carlson, J. and Gandolfi, S. and van Kolck, U. and Vitiello, S. A.},
abstractNote = {The properties of cold Bose gases at unitarity have been extensively investigated in the last few years both theoretically and experimentally. In this paper we use a family of interactions tuned to two-body unitarity and very weak three-body binding to demonstrate the universal properties of both clusters and matter. We determine the universal properties of finite clusters up to 60 particles and, for the first time, explicitly demonstrate the saturation of energy and density with particle number and compare with bulk properties. At saturation in the bulk we determine the energy, density, two- and three-body contacts, and the condensate fraction. We find that uniform matter is more bound than three-body clusters by nearly 2 orders of magnitude, the two-body contact is very large in absolute terms, and yet the condensate fraction is also very large, greater than 90%. Finally, equilibrium properties of these systems may be experimentally accessible through rapid quenching of weakly interacting boson superfluids.},
doi = {10.1103/PhysRevLett.119.223002},
journal = {Physical Review Letters},
number = 22,
volume = 119,
place = {United States},
year = {Wed Nov 29 00:00:00 EST 2017},
month = {Wed Nov 29 00:00:00 EST 2017}
}
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