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Quantum state conversion between continuous variable and qubits systems

Xiao-yu Chen, Liang Han, Li-zhen Jiang

quant-pharXiv:quant-ph/0610257

Abstract

We investigate how quantum state can be converted between continuous variable and qubits systems. Non-linear Jaynes-Cumings interaction Hamiltonian is introduced to accomplish the conversion. Detail analysis on the conversion of thermal state exhibits that pretty good fidelity can be achieved.

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