Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Controlled collapse of a Bose-Einstein condensate.

J L Roberts1, N R Claussen, S L Cornish

  • 1JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, Colorado 80309-0440, USA.

Physical Review Letters
|May 1, 2001
PubMed
Summary

Researchers studied Bose-Einstein condensate (BEC) instability. They found the critical point for BEC collapse due to attractive interactions, determining a stability condition slightly below theoretical predictions.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Reduction of light shifts in Ramsey spectroscopy with a combined error signal.

Applied physics letters·2024
Same author

Outcomes for circulatory death and brainstem death pancreas transplantation with or without use of normothermic regional perfusion.

The British journal of surgery·2021
Same author

Magneto-optic trap using a reversible, solid-state alkali-metal source.

Optics letters·2019
Same author

Ramsey Spectroscopy with Displaced Frequency Jumps.

Physical review letters·2019
Same author

Spin-Orbit-Coupled Interferometry with Ring-Trapped Bose-Einstein Condensates.

Physical review letters·2018
Same author

Repeated large-scale retreat and advance of Totten Glacier indicated by inland bed erosion.

Nature·2016

Area of Science:

  • Atomic, Molecular, and Optical Physics
  • Quantum Gases
  • Bose-Einstein Condensates

Background:

  • Bose-Einstein condensates (BECs) are quantum states of matter formed by cooling atoms to near absolute zero.
  • Attractive interactions can lead to the collapse of BECs, a phenomenon crucial for understanding quantum gas stability.
  • Feshbach resonance is a key technique for controlling atom-atom interactions in ultracold atomic gases.

Purpose of the Study:

  • To experimentally determine the critical point of instability for a Bose-Einstein condensate with attractive interactions.
  • To measure the stability condition of a BEC as a function of atom number and interaction strength.
  • To compare experimental findings with theoretical predictions for BEC collapse.

Main Methods:

  • Creation of stable Bose-Einstein condensates using Rubidium-85 atoms.

Related Experiment Videos

  • Induction of condensate collapse by tuning atom-atom interactions from repulsive to attractive via Feshbach resonance.
  • Measurement of the transition onset to determine the stability condition.

    • Main Results:

    • Observed an abrupt transition where atoms were ejected from the condensate at a critical interaction strength.
    • Determined the experimental stability condition for BEC collapse to be N(|a|)/a(ho) = 0.459 ± 0.012 ± 0.054.
    • Found the experimental stability condition to be slightly lower than the theoretical prediction of 0.574.

    Conclusions:

    • The study experimentally validates the BEC collapse phenomenon driven by attractive interactions.
    • The determined stability condition provides a precise benchmark for theoretical models of quantum gas behavior.
    • Discrepancies between experimental and theoretical values highlight areas for refinement in understanding BEC instability.