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Induced p-Wave Pairing in Bose-Fermi Mixtures
Jami J Kinnunen1, Zhigang Wu2, Georg M Bruun3
1Department of Applied Physics, Aalto University, FI-00076 Aalto, Finland.
Physical Review Letters
|January 5, 2019
Summary
We developed a theory for p-wave superfluidity in spin-polarized fermions within a Bose-Einstein condensate. This research shows that a p-wave superfluid is achievable experimentally using light bosons and heavy fermions.
Area of Science:
- Condensed matter physics
- Quantum mechanics
- Bose-Einstein condensates
Background:
- Cooper pairing is key to fermionic superfluidity.
- Understanding induced interactions is crucial for novel superfluid states.
Purpose of the Study:
- To develop a strong coupling theory for p-wave pairing in spin-polarized fermions.
- To determine the critical temperature for p-wave superfluidity.
- To identify experimentally viable systems for realizing such a superfluid.
Main Methods:
- A self-consistent strong coupling theory was employed.
- The theory accounts for the frequency and momentum dependence of induced interactions.
- Systematic analysis of varying boson-boson and boson-fermion interactions and masses.
Main Results:
- Retardation and self-energy effects significantly impact the critical temperature.
- Identified optimal conditions for realizing a p-wave superfluid.
- Demonstrated experimental feasibility using light bosons and heavy fermions.
Conclusions:
- A strong coupling theory provides a reliable method for predicting critical temperatures.
- Experimentally realizing a p-wave superfluid is feasible with specific Bose-Einstein condensate mixtures.
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