Abraham Olson
Purdue University
OpticsPhysicsSpin–orbit interactionQuasiparticleDipoleAtomic physicsMaterials scienceCondensed matter physicsCoupling (physics)Orbit (control theory)Light inducedQuantum electrodynamicsBose–Einstein condensateGauge (firearms)OptoelectronicsLaserRubidiumQuantum mechanicsDynamics (mechanics)Spin-½
27Publications
6H-index
226Citations
Publications 25
Newest
#1Chuan-Hsun Li (Purdue University)H-Index: 4
#2Chunlei Qu (UTD: University of Texas at Dallas)H-Index: 16
Last. Yong P. Chen (Purdue University)H-Index: 64
view all 12 authors...
Understanding the effects of spin-orbit coupling (SOC) and many-body interactions on spin transport is important in condensed matter physics and spintronics. This topic has been intensively studied for spin carriers such as electrons but barely explored for charge-neutral bosonic quasiparticles (including their condensates), which hold promises for coherent spin transport over macroscopic distances. Here, we explore the effects of synthetic SOC (induced by optical Raman coupling) and atomic inte...
11 CitationsSource
#1Abraham Olson (Purdue University)H-Index: 6
#2David Blasing (Purdue University)H-Index: 5
Last. Yong P. Chen (Purdue University)H-Index: 64
view all 7 authors...
We study the single-particle dispersion of a spin-orbit coupled (SOC) Bose-Einstein condensate (BEC) under the periodical modulation of the Raman coupling. This modulation introduces a further coupling of the SOC dressed eigenlevels, thus creating a second generation of modulation-dressed eigenlevels. Theoretical calculations show that these modulation-dressed eigenlevels feature a pair of avoided crossings and a richer spin-momentum locking, which we observe using BEC transport measurements. Fu...
5 CitationsSource
#1Abraham OlsonH-Index: 6
#2Chuan-Hsun LiH-Index: 4
Last. Yong P. ChenH-Index: 64
view all 5 authors...
We have developed an experimental method to modify the single-particle dispersion using periodic modulation of Raman beams which couple two spin-states of an ultracold atomic gas. The modulation introduces a new coupling between Raman-induced spin-orbit-coupled dressed bands, creating a second generation of dressed-state eigenlevels that feature both a novel 3{\pi} spin-orbit coupling and a pair of avoided crossings, which is used to realize an atomic interferometer. The spin polarization and en...
#1Abraham OlsonH-Index: 6
#1Abraham Olson (Purdue University)H-Index: 6
#2Su-Ju Wang (Purdue University)H-Index: 6
Last. Yong P. Chen (Purdue University)H-Index: 64
view all 6 authors...
The Landau-Zener (LZ) transition is one of the most fundamental phenomena in quantum dynamics. It describes nonadiabatic transitions between quantum states near an avoided crossing that can occur in diverse physical systems. Here we report experimental measurements and tuning of LZ transitions between the dressed eigenlevels of a Bose-Einstein condensate (BEC) that is synthetically spin-orbit (SO) coupled. We measure the transition probability as the BEC is accelerated through the SO avoided cro...
114 CitationsSource
#1Robert NiffeneggerH-Index: 6
#2Chunlei QuH-Index: 16
Last. Yong P. ChenH-Index: 64
view all 5 authors...
#1Chuan-Hsun LiH-Index: 4
#2David BlasingH-Index: 5
Last. Yong P. ChenH-Index: 64
view all 5 authors...