Static and dynamical properties of a two-dimensional Wigner crystal of rotating dipolar Fermi gases
| dc.creator | Cheng, Szu-Cheng | |
| dc.date | 2009-02-13 | |
| dc.date.accessioned | 2026-07-07T12:41:34Z | |
| dc.date.available | 2026-07-07T12:41:34Z | |
| dc.description | Using an ansatz wave function for the ground state of rotating two-dimensional dipolar fermions, which occupy only partially the lowest Landau level, we study the correlation energy and elastic properties of the Wigner crystal of rotating dipolar Fermi gases. From a simple Hartree-Fock approach, we show that the correlation energy of a particle crystal is lower and higher than the correlation energy of a hole crystal for filling factors v<1/2 and v>1/2, respectively. Furthermore we find that the shear moduli of these dipolar crystals have a nonmonotonic behavior as a function of the filling factor. We also examine the stability of a Wigner crystal. The Wigner crystal with the sample width being zero is locally stable for 0< v <1/2, while the corresponding hole crystal is locally stable for 1/2< v <1. Due to the WC being unstable around v=1/2, we also conclude that a new liquid state, not a quantum Hall state, can exist at v=1/2. | |
| dc.description | 25 pages, 8 figures | |
| dc.identifier | https://arxiv.org/abs/0902.2276 | |
| dc.identifier | http://arxiv.org/abs/0902.2276 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/219817 | |
| dc.subject | Other Condensed Matter | |
| dc.title | Static and dynamical properties of a two-dimensional Wigner crystal of rotating dipolar Fermi gases | |
| dc.type | text |