GroundState 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 twobody unitarity and very weak threebody 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 threebody contacts, and the condensate fraction. We find that uniform matter is more bound than threebody clusters by nearly 2 orders of magnitude, the twobody 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 ParisSud, 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.:
 Univ. of Arizona, Tucson, AZ (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of ParisSud, Orsay (France)
 Sponsoring Org.:
 USDOE Office of Science (SC), Nuclear Physics (NP) (SC26); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC21); European Union (EU)
 OSTI Identifier:
 1415405
 Report Number(s):
 LAUR1725071
Journal ID: ISSN 00319007
 Grant/Contract Number:
 AC5206NA25396; AC0205CH11231; FG0204ER41338; 654002
 Resource Type:
 Journal Article: Accepted Manuscript
 Journal Name:
 Physical Review Letters
 Additional Journal Information:
 Journal Volume: 119; Journal Issue: 22; Journal ID: ISSN 00319007
 Publisher:
 American Physical Society (APS)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; atomic & molecular clusters; Bose gases; condensed matter & materials physics; atomic, molecular & optical
Citation Formats
Carlson, J., Gandolfi, S., van Kolck, U., and Vitiello, S. A. GroundState 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. GroundState Properties of Unitary Bosons: From Clusters to Matter. United States. doi:10.1103/PhysRevLett.119.223002.
Carlson, J., Gandolfi, S., van Kolck, U., and Vitiello, S. A. 2017.
"GroundState Properties of Unitary Bosons: From Clusters to Matter". United States.
doi:10.1103/PhysRevLett.119.223002.
@article{osti_1415405,
title = {GroundState 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 twobody unitarity and very weak threebody 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 threebody contacts, and the condensate fraction. We find that uniform matter is more bound than threebody clusters by nearly 2 orders of magnitude, the twobody 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 = 2017,
month =
}

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