2007/12/31 by Priyam Das, Thokala Soloman Raju, T. Solomon Raju +2 · 13 citations
Physics and Astronomy · #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Component (thermodynamics) #Coupling (piping) #Lattice (music) #Nonlinear system #Optical lattice #Phase (matter) #Physics #Quantum electrodynamics #Quantum mechanics #Quantum, superfluid, helium dynamics #Scattering #Scattering length #Strong Light-Matter Interactions #Superfluidity #Trap (plumbing) #cond-mat.other
paper · pdf · doi:10.1103/physreva.79.015601
published in Physical Review A 79(1) (American Physical Society) · 6 pages, 1 figure
openalex publication_date 2009/01/15 · arxiv created 2009/11/23 · arxiv updated 2009/12/08 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The nonlinear coupled Gross-Pitaevskii equation governing the dynamics of the two-component Bose-Einstein condensate (TBEC) is shown to admit sinusoidal, propagating-wave solutions in quasi-one-dimensional geometry in a trap. The solutions exist for a wide parameter range, which illustrates a procedure for coherent control of these modes through temporal modulation of the parameters, like scattering length and oscillator frequency. The effects of time-dependent coupling and the trap variation on the condensate profile are explained. The TBEC has also been investigated in the presence of an optical lattice potential, where the superfluid phase is found to exist under general conditions.