English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Spin-momentum entanglement in a Bose–Einstein condensate

MPS-Authors
/persons/resource/persons21529

Friedrich,  Bretislav
Molecular Physics, Fritz Haber Institute, Max Planck Society;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Kale, S. K., Ding, Y., Chen, Y. P., Friedrich, B., & Kais, S. (2020). Spin-momentum entanglement in a Bose–Einstein condensate. Physical Chemistry Chemical Physics, 22(44), 25669-25674. doi:10.1039/D0CP03945D.


Cite as: http://hdl.handle.net/21.11116/0000-0007-8747-1
Abstract
Entanglement is at the core of quantum information processing and may prove essential for quantum speed-up. Inspired by both theoretical and experimental studies of spin-momentum coupling in systems of ultra-cold atoms, we investigate the entanglement between the spin and momentum degrees of freedom of an optically trapped BEC of 87Rb atoms. We consider entanglement that arises due to the coupling of these degrees of freedom induced by Raman and radio-frequency fields and examine its dependence on the coupling parameters by evaluating von Neumann entropy as well as concurrence as measures of the entanglement attained. Our calculations reveal that under proper experimental conditions significant spin-momentum entanglement can be obtained, with von Neumann entropy of 80% of the maximum attainable value. Our analysis sheds some light on the prospects of using BECs for quantum information applications.