English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

High-Temperature Nonequilibrium Bose Condensation Induced by a Hot Needle

MPS-Authors
/persons/resource/persons185039

Vorberg,  Daniel Christian
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

/persons/resource/persons184641

Ketzmerick,  Roland
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

/persons/resource/persons184474

Eckardt,  Andre
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Schnell, A., Vorberg, D. C., Ketzmerick, R., & Eckardt, A. (2017). High-Temperature Nonequilibrium Bose Condensation Induced by a Hot Needle. Physical Review Letters, 119(14): 140602. doi:10.1103/PhysRevLett.119.140602.


Cite as: https://hdl.handle.net/21.11116/0000-0000-3CA3-5
Abstract
We investigate theoretically a one-dimensional ideal Bose gas that is driven into a steady state far from equilibrium via the coupling to two heat baths: a global bath of temperature T and a "hot needle," a bath of temperature T-h >> T with localized coupling to the system. Remarkably, this system features a crossover to finite-size Bose condensation at temperatures T that are orders of magnitude larger than the equilibrium condensation temperature. This counterintuitive effect is explained by a suppression of long-wavelength excitations resulting from the competition between both baths. Moreover, for sufficiently large needle temperatures ground-state condensation is superseded by condensation into an excited state, which is favored by its weaker coupling to the hot needle. Our results suggest a general strategy for the preparation of quantum degenerate nonequilibrium steady states with unconventional properties and at large temperatures.