Practical scheme for quantum dense coding between three parties using microwave radiation in trapped ions

Details Practical scheme for quantum dense coding between three parties using microwave radiation in trapped ions Practical scheme for quantum dense coding between three parties using microwave radiation in trapped ions

2007-02-07

arxiv.org/abs/quant-ph/0702062v1

J. Phys. B: At. Mol. Opt. Phys. 40 (2007) 1245-1252

Physics

Quantum Physics

6 pages, 2 figures, accepted by J. Phys. B: At. Mol. Opt. Phys

Scientific paper

10.1088/0953-4075/40/6/014

We propose a practical scheme for implementing two-dimension quantum dense coding (QDC) between three parties through manipulating three ions confined in microtraps addressed by microwaves and assisted by a magnetic field gradient. The ions in our scheme are not required to be strictly cooled to the vibrational ground state because single-qubit and multi-qubit operations are made via Ising terms, in which the vibrational modes of the ions remain unchanged throughout the scheme, rendering our scheme robust to the heating of the ions. We also present the detailed steps and parameters for implementing the three-party QDC experimentally and show that the proposed scheme is within the current techniques of ion-trap experiments.

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