Spin-spin interaction and spin-squeezing in an optical lattice

Abstract

We show that by displacing two optical lattices with respect to each other, we may produce interactions similar to the ones describing ferro-magnetism in condensed matter physics. We also show that particularly simple choices of the interaction lead to spin-squeezing, which may be used to improve the sensitivity of atomic clocks. Spin-squeezing is generated even with partially, and randomly, filled lattices, and our proposal may be implemented with current technology.

4 pages, including 4 figures

References in corpus (6)

• Cold bosonic atoms in optical lattices
• The dynamics of component separation in a binary mixture of Bose-Einstein condensates
• Entanglement of atoms via cold controlled collisions
• Quantum Logic Gates in Optical Lattices
• Measurements of Relative Phase in Binary Mixtures of Bose-Einstein Condensates
• Resolved-sideband Raman cooling to the ground state of an optical lattice

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