Deterministic entanglement and tomography of ion-spin qubits

Deterministic entanglement and tomography of ion-spin qubits

Show other versions (1)

We have implemented a universal quantum logic gate between qubits stored in the spin state of a pair of trapped 40Ca ions. An initial product state was driven to a maximally entangled state deterministically, with 83% fidelity. We present a general approach to quantum state tomography which achieves...

全面介绍

书目详细资料
Main Authors: Home, J, McDonnell, M, Lucas, D, Imreh, G, Keitch, B, Szwer, D, Thomas, N, Webster, S, Stacey, D, Steane, A
格式: Journal article
出版: 2006
实物特征
总结:We have implemented a universal quantum logic gate between qubits stored in the spin state of a pair of trapped 40Ca ions. An initial product state was driven to a maximally entangled state deterministically, with 83% fidelity. We present a general approach to quantum state tomography which achieves good robustness to experimental noise and drift, and use it to measure the spin state of the ions. We find the entanglement of formation is 0.54. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.

相似书籍