期刊
PHYSICAL REVIEW A
卷 87, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.87.063618
关键词
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资金
- AFOSR [FA9550-13-1-0045]
- DARPA MTO [FA9550-10-1-0497]
- NSF-PHY [1104546]
- ARO [W911NF-12-1-0334]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1104527] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1104546] Funding Source: National Science Foundation
We discuss the thermodynamic signatures for the topological phase transitions into Majorana and Weyl superfluid phases in ultracold Fermi gases in two and three dimensions (2D and 3D) in the presence of Rashba spin-orbit coupling and a Zeeman field. We analyze the thermodynamic properties exhibiting the distinct nature of the topological phase transitions linked with the Majorana fermions (2D Fermi gas) and Weyl fermions (3D Fermi gas) which can be observed experimentally, including pressure, chemical potential, isothermal compressibility, entropy, and specific heat, as a function of the interaction and the Zeeman field at both zero and finite temperatures. We conclude that among the various thermodynamic quantities, the isothermal compressibility and the chemical potential as functions of the artificial Zeeman field have the strongest signatures of the topological transitions in both two and three dimensions.
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