Author: Ian Spielman

By Posted on Posted in Group News, RbK

Spin-orbit coupling is an essential ingredient in topological materials, conventional and quantum-gas-based alike. Engineered spin-orbit coupling in ultracold-atom systems—unique in their experimental control and measurement opportunities—provides a major opportunity to investigate and understand topological phenomena. Here we experimentally demonstrate and …

Tunable Spin-Orbit Coupling via Strong Driving in Ultracold-Atom Systems Read more »

By Posted on Posted in Group News, Theory

We theoretically explore atomic Bose–Einstein condensates (BECs) subject to position-dependent spin–orbit coupling (SOC). This SOC can be produced by cyclically laser coupling four internal atomic ground (or metastable) states in an environment where the detuning from resonance depends on position. …

Position-dependent spin–orbit coupling for ultracold atoms Read more »

By Posted on Posted in Atomtronics, Group News, Papers Published, Theory

Nathan Goldman et al‘s result describing techniques for measuring topology in a laser-coupled honeycomb lattice has been featured as a “Highlight of 2013” by The New Journal of Physics! This rocks! Highlights page: http://iopscience.iop.org/1367-2630/page/highlights-of-2013 Article: http://iopscience.iop.org/1367-2630/15/1/013025/article

By Posted on Posted in Group News, Papers Published, RbLi

We explore the time evolution of two-component Bose-Einstein condensates (BECs), quasi one dimensional with respect to their spinor dynamics, following a quench from one component BECs with a U(1) order parameter into two-component condensates with a U(1)xZ2 order parameter. In …

Quenched binary Bose-Einstein condensates: Spin-domain formation and coarsening Read more »