Theoretical aspects of ultra-cold fermions in the presence of artificial spin-orbit coupling

Ultracold atoms;Low temperature;Many body physics;Quantum physics;Superfluids;Quantum liquids;Atomic and molecular physics

Kurkcuoglu, Doga Murat ; Sa de Melo, Carlos A. R. Tan, Shina Chapman, Michael Bellissard, Jean Kindermann, Markus Physics ; Sa de Melo, Carlos A. R.

University:Georgia Institute of Technology

Department:Physics

关键词: Ultracold atoms;    Low temperature;    Many body physics;    Quantum physics;    Superfluids;    Quantum liquids;    Atomic and molecular physics;   

Others  :  https://smartech.gatech.edu/bitstream/1853/55505/1/KURKCUOGLU-DISSERTATION-2015.pdf

美国|英语

来源: SMARTech Repository

【 摘 要 】

Main purpose of this thesis is to present a discussion of the effectsof artificial spin-orbit coupling and Zeeman fields in fermionic ultra-cold atoms. Part of the work described here is inspired by the experimental realization of artificial spin-orbit coupling (SOC) in the fermionic isotope $^{40}$K using a Raman technique, which was done by NIST group recently. The first aspect investigated is the formation oftwo-body bound states of fermions when artificial spin-orbit coupling and artificial Zeeman fields are present. These bound-states are analyzed for two-hyperfine-state fermions in free space and in a harmonically confining potential. The second aspect explored is the study of spectroscopic and thermodynamic properties of three-hyperfine-state fermions. These properties are investigated as a function of spin-orbit coupling and Zeeman fields for non-interactingatoms, but when atom-atom interactions are also included, the many-body system consisting of three-hyperfine-state fermions can exhibit exotic superfluid phases.