Quantum computing with incoherent resources and quantum jumps.
Quantum computing with incoherent resources and quantum jumps.
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具有不相干资源和量子跳跃的量子计算。
DOI：
10.1103/physrevlett.108.170501
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发表时间：
2011
影响因子：
8.6
通讯作者：
A. Carvalho
中科院分区：
文献类型：
--
作者：
M. F. Santos;M. T. Cunha;R. Chaves;A. Carvalho
光子的自发辐射和非弹性散射是两个自然过程，通常与退相干和处理量子信息的能力降低有关。在这里，我们表明，当适当地检测到，这些光子是足够的，以建立所需的所有基本块进行量子计算的发射量子位，同时保护他们免受有害的耗散效应。我们通过展示如何有效地为基于测量的量子计算的实现准备图形状态来证明这一点。
Spontaneous emission and the inelastic scattering of photons are two natural processes usually associated with decoherence and the reduction in the capacity to process quantum information. Here we show that, when suitably detected, these photons are sufficient to build all the fundamental blocks needed to perform quantum computation in the emitting qubits while protecting them from deleterious dissipative effects. We exemplify this by showing how to efficiently prepare graph states for the implementation of measurement-based quantum computation.