Advances in Condensed Matter Physics / 2018 / Article / Fig 1

Research Article

Speed of the Goldstone Sound Mode of an Atomic Fermi Gas Loaded on a Square Optical Lattice with a Non-Abelian Gauge Field in the Presence of a Zeeman Field

Figure 1

Chemical potential , pairing gap , and the Zeeman field of a Fermi gas in a square optical lattice subject to a non-Abelian gauge field . The graphs are obtained by solving the mean field equations (13)-(17) using two different filling factors: and . The on-site attractive strength is , and the polarization is .