Nonequilibrium Quantum Magnetism in a Dipolar Lattice Gas

作者:de Paz A; Sharma A; Chotia A; Marechal E; Huckans J H; Pedri P; Santos L; Gorceix O; Vernac L*; Laburthe Tolra B
来源:Physical Review Letters, 2013, 111(18): UNSP 185305.
DOI:10.1103/PhysRevLett.111.185305

摘要

We report on the realization of quantum magnetism using a degenerate dipolar gas in an optical lattice. Our system implements a lattice model resembling the celebrated t-J model. It is characterized by a nonequilibrium spinor dynamics resulting from intersite Heisenberg-like spin-spin interactions provided by nonlocal dipole-dipole interactions. Moreover, due to its large spin, our chromium lattice gases constitute an excellent environment for the study of quantum magnetism of high-spin systems, as illustrated by the complex spin dynamics observed for doubly occupied sites.

  • 出版日期2013-10-30