Creation of macroscopic quantum superposition states by a measurement
arXiv:0710.3578 · doi:10.1209/0295-5075/83/60004
Abstract
We propose a novel protocol for the creation of macroscopic quantum superposition (MQS) states based on a measurement of a non-monotonous function of a quantum collective variable. The main advantage of this protocol is that it does not require switching on and off nonlinear interactions in the system. We predict this protocol to allow the creation of multiatom MQS by measuring the number of atoms coherently outcoupled from a two-component (spinor) Bose-Einstein condensate.
arXiv comment4 pages (revtex4), 2 figures
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- Macroscopic Superposition of Ultracold Atoms with Orbital Degrees of Freedom
- Macroscopic superposition states of ultracold bosons in a double-well potential
- NOON states with ultracold bosonic atoms via resonance- and chaos-assisted tunneling
- Collapse in ultracold Bose Josephson junctions
- Protected cat states from kinetic driving of a boson gas
- Ground state of the double-well condensate for quantum metrology