326 citations · 1.7k across the 13 of their papers we have counts for
13 papers
Measurement of collective excitations in a spin-orbit-coupled Bose-Einstein condensate
M. A. Khamehchi, Yongping Zhang, Chris Hamner +2
We measure the collective excitation spectrum of a spin-orbit coupled Bose-Einstein condensate using Bragg spectroscopy. The spin-orbit coupling is generated by Raman dressing of a…
Spin-orbit coupled Bose-Einstein condensates in a one-dimensional optical lattice
C. Hamner, Yongping Zhang, M. A. Khamehchi +2
The realization of artificial gauge fields and spin-orbit coupling for ultra-cold quantum gases promises new insight into paradigm solid state systems. Here we experimentally probe…
Dicke-type phase transition in a spin-orbit coupled Bose-Einstein condensate
Chris Hamner, Chunlei Qu, Yongping Zhang +4
Spin-orbit coupled Bose-Einstein condensates (BECs) provide a powerful tool to investigate interesting gauge-field related phenomena. We study the ground state properties of such a…
Phase Winding a Two-Component BEC in an Elongated Trap: Experimental Observation of Moving Magnetic Orders and Dark-bright Solitons
C. Hamner, Yongping Zhang, J. J. Chang +2
We experimentally investigate the phase winding dynamics of a harmonically trapped two-component BEC subject to microwave induced Rabi oscillations between two pseudospin component…
Observation of Zitterbewegung in a spin-orbit coupled Bose-Einstein condensate
Chunlei Qu, Chris Hamner, Ming Gong +2
Spin-orbit coupled ultra-cold atoms provide an intriguing new avenue for the study of rich spin dynamics in superfluids. In this Letter, we observe Zitterbewegung, the simultaneous…
Scattering of atomic dark-bright solitons from narrow impurities
A. Álvarez, J. Cuevas, F. R. Romero +5
In this work, we study the collision of an atomic dark-bright soliton, in a two-component Bose-Einstein condensate, with a Gaussian barrier or well. First, we present the results o…