Environment-Mediated Quantum State Transfer

Details Environment-Mediated Quantum State Transfer Environment-Mediated Quantum State Transfer

2007-06-29

arxiv.org/abs/0706.4410v1

Physics

Quantum Physics

6 pages and 5 figures

Scientific paper

10.1088/1751-8113/41/8/085306

We propose a scheme for quantum state transfer(QST) between two qubits which is based on their individual interaction with a common boson environment. The corresponding single mode spin-boson Hamiltonian is solved by mapping it onto a wave propagation problem in a semi-infinite ladder and the fidelity is obtained. High fidelity occurs when the qubits are equally coupled to the boson while the fidelity becomes smaller for nonsymmetric couplings. The complete phase diagram for such an arbitrary QST mediated by bosons is discussed.

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