Stable85RbBose-Einstein Condensates with Widely Tunable Interactions

2000/04/30 by S. L. Cornish, Simon L. Cornish, N. R. Claussen +6 · 30 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Computer science #Physics #Quantum, superfluid, helium dynamics #Strong Light-Matter Interactions #cond-mat

paper · pdf · doi:10.1103/physrevlett.85.1795

10 pages, 3 figures, submitted to Physical Review Letters. Corrections made following referees' comments

arxiv created 2000/06/09 · openalex publication_date 2000/08/28 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Bose-Einstein condensation has been achieved in a magnetically trapped sample of 85Rb atoms. Long-lived condensates of up to 10(4) atoms have been produced by using a magnetic-field-induced Feshbach resonance to reverse the sign of the scattering length. This system provides new opportunities for the study of condensate physics. The variation of the scattering length near the resonance has been used to magnetically tune the condensate self-interaction energy over a wide range, extending from strong repulsive to large attractive interactions. When the interactions were switched from repulsive to attractive, the condensate shrank to below our resolution limit, and after approximately 5 ms emitted a burst of high-energy atoms.

Citations

• Evidence of Bose-Einstein Condensation in an Atomic Gas with Attractive Interactions

Cited by

• Magnetic merging of ultracold atomic gases ofRb<mml:mprescripts/><mml:none/>85andRb<mml:mprescripts/><mml:none/>87
• Observation of Feshbach Resonances between Two Different Atomic Species
• Josephson spectroscopy of a dilute Bose-Einstein condensate in a double-well potential
• Impurity localization, and collision properties of symbiotic dark-bright solitons in superfluid-impurity system
• BRIGHT-LIKE SOLITON SOLUTION IN QUASI-ONE-DIMENSIONAL BEC IN THIRD ORDER BY INTERACTION RADIUS
• Spectrum and Dynamics of the BCS-BEC Crossover from a Few-Body Perspective
• Measurement of inelastic losses in a sample of ultracoldRb<mml:mprescripts/><mml:none/>85
• Tuning the Dipolar Interaction in Quantum Gases
• Split Instability of a Vortex in an Attractive Bose-Einstein Condensate
• Quantum simulations of lattice gauge theories using ultracold atoms in optical lattices
• Analog model of a Friedmann-Robertson-Walker universe in Bose-Einstein condensates: Application of the classical field method
• Compositeness effects in the Bose–Einstein condensation
• Enhancing molecular conversion efficiency by a magnetic field pulse sequence
• Collective oscillations of one-dimensional Bose-Einstein gas in a time-varying trap potential and atomic scattering length
• A white-light trap for Bose–Einstein condensates
• Stability of attractive Bose-Einstein condensates in a periodic potential
• Collisionally inhomogeneous Bose–Einstein condensates in double-well potentials
• Bose-Einstein Condensation of Molecules
• Feshbach resonances in ultracold gases
• Vortex solitons in two-dimensional spin-orbit coupled Bose-Einstein condensates: Effects of the Rashba-Dresselhaus coupling and Zeeman splitting
• Interferences in the Density of Two Bose-Einstein Condensates Consisting of Identical or Different Atoms
• Universality of miscible–immiscible phase separation dynamics in two-component Bose–Einstein condensates
• Measurement of a mixed-spin-channel Feshbach resonance inRb<mml:mprescripts/><mml:none/>87
• Chaotic oscillation in an attractive Bose-Einstein condensate under an impulsive force
• Bose-Einstein condensates in the large-gas-parameter regime
• Interaction effects on atomic laboratory trapped Bose-Einstein condensates
• A Consistent Picture of a Collapsing Bose–Einstein Condensate
• Effect of realistic interatomic interactions and two-body correlation on the heat capacity of a trapped BEC
• Improved characterization of elastic scattering near a Feshbach resonance in85Rb
• Ground-state properties of the attractive one-dimensional Bose-Hubbard model