2014/11/25 by Michael DeMarco, M. DeMarco, Han Pu · 70 citations
Physics and Astronomy · #Angular momentum #Angular momentum coupling #Atom (system on chip) #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Coupling (piping) #Ground state #Hydrogen-like atom #Materials science #Orbit (dynamics) #Orbital Angular Momentum in Optics #Particle (ecology) #Phase (matter) #Physics #Quantum mechanics #Quantum optics and atomic interactions #Spin (aerodynamics) #Spin–orbit interaction #Total angular momentum quantum number #cond-mat.quant-gas
paper · pdf · doi:10.1103/physreva.91.033630
published in Physical Review A 91(3) (American Physical Society) · 7 pages, 5 figures
arxiv created 2014/11/25 · openalex publication_date 2015/03/25 · arxiv updated 2015/03/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We propose coupling two internal atomic states using a pair of Raman beams operated in Laguerre-Gaussian laser modes with unequal phase windings. This generates a coupling between the atom's pseudospin and its orbital angular momentum. We analyze the single-particle properties of the system using realistic parameters and provide detailed studies of the spin texture of the ground state. Finally, we consider a weakly interacting atomic condensate subject to this angular spin-orbit coupling and show how the interatomic interactions modify the single-particle physics.