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Updated: Jul 4, 2026
11:21
Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Total control over ultracold interactions via electric and magnetic fields
Bout Marcelis1, Boudewijn Verhaar, Servaas Kokkelmans
1Eindhoven University of Technology, Eindhoven, The Netherlands.
Physical Review Letters
|June 4, 2008
Summary
Researchers achieved full control over ultracold atomic interactions by independently tuning both scattering length and effective range parameters. This was accomplished using a combination of magnetic and electric fields, offering new possibilities for ultracold gases.
Area of Science:
- Atomic physics
- Quantum mechanics
- Ultracold gases
Background:
- Scattering length characterizes ultracold atomic interactions and is tunable via magnetic fields and Feshbach resonances.
- The effective range term, crucial for resonance width and gas properties, lacks independent magnetic field control.
Purpose of the Study:
- To demonstrate independent control over both scattering length and effective range parameters.
- To achieve full control over elastic ultracold interactions.
Main Methods:
- Utilizing a combination of magnetic and electric fields.
- Modifying the scattering phase shift expansion parameters.
Main Results:
- Independent control over both scattering length and effective range was achieved.
- Full control over elastic ultracold interactions was demonstrated.
Conclusions:
- A combined magnetic and electric field approach enables precise manipulation of ultracold atomic interactions.
- This method offers unprecedented control over the properties of ultracold gases.
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