| Issue |
EPL
Volume 107, Number 5, September 2014
|
|
|---|---|---|
| Article Number | 57004 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/107/57004 | |
| Published online | 05 September 2014 | |
Quantum phase liquids: Fermionic superfluid without phase coherence
Department of Physics, Beijing Normal University - Beijing 100875, China
(a) spkou@bnu.edu.cn (corresponding author)
Received: 20 June 2014
Accepted: 12 August 2014
We investigate the two-dimensional generalized attractive Hubbard model in a bipartite lattice, and find a “quantum phase liquid” phase, in which the fermions are paired but do not have phase coherence at zero temperature, in analogy to quantum spin liquid phase. In addition, two types of topological quantum phase liquids with a small external magnetic field —Z2 quantum phase liquids and chiral quantum phase liquids— are discussed.
PACS: 74.40.-n – Fluctuation phenomena / 74.25.Dw – Superconductivity phase diagrams
© EPLA, 2014
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.