Creation of macroscopic superpositions of flow states with Bose-Einstein condensates

Details Creation of macroscopic superpositions of flow states with Bose-Einstein condensates Creation of macroscopic superpositions of flow states with Bose-Einstein condensates

2006-05-05

arxiv.org/abs/quant-ph/0605059v1

Physics

Quantum Physics

9 pages, 7 figures

Scientific paper

10.1103/PhysRevA.74.023601

We present a straightforward scheme for creating macroscopic superpositions of different superfluid flow states of Bose-Einstein condensates trapped in optical lattices. This scheme has the great advantage that all the techniques required are achievable with current experiments. Furthermore, the relative difficulty of creating cats scales favorably with the size of the cat. This means that this scheme may be well-suited to creating superpositions involving large numbers of particles. Such states may have interesting technological applications such as making quantum-limited measurements of angular momentum.

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