Can Three-Body Recombination Purify a Quantum Gas?
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Dogra, Lena H
Glidden, Jake AP
Hilker, Timon A
Eigen, Christoph https://orcid.org/0000-0001-5298-7482
Cornell, Eric A
Abstract
Three-body recombination in quantum gases is traditionally associated with heating, but it was recently found that it can also cool the gas. We show that in a partially condensed three-dimensional homogeneous Bose gas three-body loss could even purify the sample, that is, reduce the entropy per particle and increase the condensed fraction η. We predict that the evolution of η under continuous three-body loss can, depending on small changes in the initial conditions, exhibit two qualitatively different behaviors-if it is initially above a certain critical value, η increases further, whereas clouds with lower initial η evolve towards a thermal gas. These dynamical effects should be observable under realistic experimental conditions.
Description
Keywords
cond-mat.quant-gas, cond-mat.quant-gas, cond-mat.stat-mech, physics.atom-ph, quant-ph
Journal Title
Phys Rev Lett
Conference Name
Journal ISSN
0031-9007
1079-7114
1079-7114
Volume Title
123
Publisher
American Physical Society (APS)
Publisher DOI
Rights
All rights reserved
Sponsorship
European Office of Aerospace Research and Development (EOARD) (W911NF-15-1-0444)
Engineering and Physical Sciences Research Council (EP/N011759/1)
European Research Council (682285)
Engineering and Physical Sciences Research Council (EP/R043396/1)
Engineering and Physical Sciences Research Council (EP/P009565/1)
Engineering and Physical Sciences Research Council (EP/N011759/1)
European Research Council (682285)
Engineering and Physical Sciences Research Council (EP/R043396/1)
Engineering and Physical Sciences Research Council (EP/P009565/1)