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

Abstract

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.

arXiv comment9 pages, 7 figures

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Cited by in corpus (12)

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• Bose-Hubbard model in a ring-shaped optical lattice with high filling factors
• Quantum Fisher Information as a Predictor of Decoherence in the Preparation of Spin-Cat States for Quantum Metrology
• Engineering mesoscopic superpositions of superfluid flow
• Spatial entanglement in interacting Bose-Einstein condensates
• Dynamical studies of macroscopic superposition states: Phase engineering of controlled entangled number states of Bose-Einstein condensate in multiple wells
• Quantum superpositions of flow states on a ring
• Measuring atomic NOON-states and using them to make precision measurements
• Macroscopic superposition states in rotating ring lattices
• Flow Representation of the Bose-Hubbard Hamiltonian : General Case