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Two-body transients in coupled atomic-molecular bose-einstein condensates.

Pascal Naidon1, Eite Tiesinga, Paul S Julienne

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This study explores atomic Bose-Einstein condensate dynamics during molecule formation via photoassociation. It identifies three key regimes, including rogue dissociation, using time-dependent two-body theory.

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Area of Science:

  • Atomic physics
  • Quantum optics
  • Condensed matter physics

Background:

  • Bose-Einstein condensates (BECs) are quantum states of matter with unique properties.
  • Photoassociation is a technique to form molecules from atoms in a BEC.
  • Understanding atom-molecule conversion dynamics is crucial for quantum technologies.

Purpose of the Study:

  • To investigate the dynamics of atomic Bose-Einstein condensates undergoing photoassociation.
  • To identify and characterize different regimes of atom-molecule conversion.
  • To provide a theoretical framework for understanding these dynamics.

Main Methods:

  • Application of time-dependent two-body theory.
  • Analysis of atom-molecule conversion dynamics in BECs.
  • Identification of universal properties in transient regimes.

Main Results:

  • Three distinct dynamic regimes were identified during photoassociation.
  • The rogue dissociation regime was linked to transient two-atom dynamics.
  • Universal properties were observed in specific dynamic regimes.

Conclusions:

  • Time-dependent two-body theory effectively describes BEC photoassociation dynamics.
  • The rogue dissociation regime exhibits universal characteristics.
  • Alkaline-earth atom condensates are suitable for exploring these photoassociation regimes.