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Updated: Oct 20, 2025
12:18
Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
17.2K
Matter waves in atomic-molecular condensates with Feshbach resonance management
F Kh Abdullaev1,2, M Ögren3,4, J S Yuldashev1,2
1Physical-Technical Institute, Uzbek Academy of Sciences, 100084 Tashkent, Uzbekistan.
Physical Review. E
|September 16, 2021
Summary
Investigating atomic to molecular condensate transitions, this study explores time-modulated scattering lengths. Rapid modulations suppress atom association, while slow modulations enhance molecular fields, revealing potential chaos and molecule production strategies.
Area of Science:
- Quantum physics
- Atomic and molecular physics
- Condensate dynamics
Background:
- Understanding the transition between atomic and molecular Bose-Einstein Condensates (BECs) is crucial for quantum control.
- Time-modulated parameters offer pathways to manipulate quantum systems dynamically.
Purpose of the Study:
- To investigate the dynamics of matter waves during the atomic to molecular condensate transition.
- To explore the effects of time-modulated atomic scattering length on condensate formation.
- To identify conditions for controlling atom association and molecule production.
Main Methods:
- Theoretical investigation of matter wave dynamics.
- Analysis of both rapid and slow time modulations of the atomic scattering length.
- Derivation of system averages over oscillations for rapid modulations.
- Identification of resonant phenomena for slow modulations.
Main Results:
- Rapid modulations enable dynamical suppression of atom association and second-harmonic generation.
- Slow modulations lead to resonant enhancement in the molecular field.
- Chaos was observed in the atomic-molecular BEC system under specific conditions.
- A sequential modulation strategy (slow followed by rapid) is proposed for efficient molecule production.
Conclusions:
- Time-modulated scattering lengths provide a versatile tool for controlling atomic-to-molecular condensate transitions.
- The study reveals distinct behaviors for rapid and slow modulations, offering different control mechanisms.
- The findings pave the way for novel methods in quantum gas manipulation and molecule synthesis.
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