Preparing encoded states in an oscillator

Details Preparing encoded states in an oscillator Preparing encoded states in an oscillator

2002-05-17

arxiv.org/abs/quant-ph/0205114v1

Physical Review A, Vol 66, 052322 (2002)

Physics

Quantum Physics

5 pages, 4 figures, RevTeX

Scientific paper

10.1103/PhysRevA.66.052322

Recently a scheme has been proposed for constructing quantum error-correcting codes that embed a finite-dimensional code space in the infinite-dimensional Hilbert space of a system described by continuous quantum variables. One of the difficult steps in this scheme is the preparation of the encoded states. We show how these states can be generated by coupling a continuous quantum variable to a single qubit. An ion trap quantum computer provides a natural setting for a continuous system coupled to a qubit. We discuss how encoded states may be generated in an ion trap.

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