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Updated: Dec 1, 2025

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Spin-momentum entanglement in a Bose-Einstein condensate
Sumit Suresh Kale1, Yijue Ding, Yong P Chen
1Department of Chemistry, Purdue University, USA. kais@purdue.edu.
Researchers explored spin-momentum entanglement in ultra-cold atoms. Significant entanglement was achieved, showing promise for quantum information processing applications.
Area of Science:
- Quantum Physics
- Atomic Physics
- Quantum Information Science
Background:
- Entanglement is crucial for quantum information processing and quantum speed-up.
- Spin-momentum coupling in ultra-cold atoms is an active area of theoretical and experimental research.
Purpose of the Study:
- To investigate spin-momentum entanglement in optically trapped Bose-Einstein Condensates (BECs) of 87Rb atoms.
- To analyze the dependence of this entanglement on coupling parameters.
Main Methods:
- Utilizing Raman and radio-frequency fields to induce spin-momentum coupling in BECs.
- Quantifying entanglement using von Neumann entropy and concurrence.
Main Results:
- Significant spin-momentum entanglement was achieved under specific experimental conditions.
- Von Neumann entropy reached 80% of its maximum attainable value.
Conclusions:
- Optically trapped BECs can be a viable platform for generating substantial spin-momentum entanglement.
- This research provides insights into the potential of BECs for quantum information applications.
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