Implementation of quantum controlled phase gate and preparation of multiparticle entanglement in cavity QED
Implementation of quantum controlled phase gate and preparation of multiparticle entanglement in cavity QED
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量子控制相位门的实现及腔内QED多粒子纠缠的制备
DOI：
10.1088/1674-1056/20/6/060306
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发表时间：
2011
影响因子：
1.7
通讯作者：
Zhang Yong
中科院分区：
文献类型：
--
作者：
Chen Zhi-Hua;Wu Xi;Ye Ming-Yong;Chen Yue-Hua;Lin Xiu-Min;Zhang Yong
基于三态原子、双模腔和经典脉冲之间的大失谐相互作用，提出了实现量子控制位相门和制备N量子比特类W态的方案。特别地，只需一步就可以产生一类可用于完美隐形传态和超密集编码的W态。与以前的方案相比，腔的衰变得到了很大程度的抑制，因为腔只是虚拟激发的，总是处于真空态，而原子的自发辐射由于大的原子场失谐而受到强烈的抑制。
Schemes are presented for realizing quantum controlled phase gate and preparing an N-qubit W-like state, which are based on the large-detuned interaction among three-state atoms, dual-mode cavity and a classical pulse. In particular, a class of W states that can be used for perfect teleportation and superdense coding is generated by only one step. Compared with the previous schemes, cavity decay is largely suppressed because the cavity is only virtually excited and always in the vacuum state and the atomic spontaneous emission is strongly restrained due to a large atom—field detuning.
DOI：
10.1007/978-94-017-0849-4
发表时间：
1989
期刊：
--
影响因子：
--
作者：
M. Kafatos
通讯作者：
M. Kafatos