Josephson Effect in BEC with Spin Degree of Freedom

Details Josephson Effect in BEC with Spin Degree of Freedom Josephson Effect in BEC with Spin Degree of Freedom

2001-07-24

arxiv.org/abs/cond-mat/0107513v1

Phys. Rev. A 66, 013609 (2002)

Physics

Condensed Matter

Soft Condensed Matter

23 pages, 3 figures

Scientific paper

10.1103/PhysRevA.66.013609

We consider the Josephson Effect between two spatially separated Bose-Einstein condensates of atoms each of which can be in two hyperfine states. We derive simple equations of motion for this system closely analogous to the Bloch equations. We also map the dynamics of the system onto those of a classical particle in a well. We find novel density and spin modes of oscillation and new stable equilibrium points of the motion. Finally we analyze the oscillation modes in the spin-1 ($F$=1) case.

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