Trebst Simon, Schollwöck Ulrich, Troyer Matthias, Zoller Peter
Theoretische Physik, Eidgenössische Technische Hochschule Zürich, CH-8093 Zürich, Switzerland.
Phys Rev Lett. 2006 Jun 30;96(25):250402. doi: 10.1103/PhysRevLett.96.250402. Epub 2006 Jun 29.
We study controlled generation and measurement of superfluid d-wave resonating valence bond (RVB) states of fermionic atoms in 2D optical lattices. Starting from loading spatial and spin patterns of atoms in optical superlattices as pure quantum states from a Fermi gas, we adiabatically transform this state to an RVB state by a change of the lattice parameters. Results of exact time-dependent numerical studies for ladders systems are presented, suggesting generation of RVB states on a time scale smaller than typical experimental decoherence times.
我们研究二维光学晶格中费米子原子的超流d波共振价键（RVB）态的受控生成与测量。从将光学超晶格中原子的空间和自旋模式作为费米气体的纯量子态加载开始，我们通过改变晶格参数将此状态绝热地转变为RVB态。给出了对梯子系统精确的含时数值研究结果，表明在小于典型实验退相干时间的时间尺度上生成了RVB态。
