An arbitrary collective spin squeezing and entanglement of a two-component spinor condensate can be readily controlled by the coupling fields between the two components. Squeezed or entangled spin states will find applications in high-precision spectroscopy, atomic interferometry and quantum information, and spinor condensates are attractive candidates to create such states. The scheme presented can be realized in the two-component 87Rb condensate. Another possibility is offered by the F = 1 spinor condensate of 23Na which can be reduced to an effective spin-(1/2) system by shifting the energy level of the mF = 0 state with an ac Stark shift.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering