Deterministic Generation of Large-Scale Entangled Photonic Cluster State from Interacting Solid State Emitters
Deterministic Generation of Large-Scale Entangled Photonic Cluster State from Interacting Solid State Emitters
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DOI：
10.1103/physrevlett.123.070501
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发表时间：
2019-08-12
影响因子：
8.6
通讯作者：
Economou, Sophia E.
中科院分区：
文献类型：
--
作者：
Gimeno-Segovia, Mercedes;Rudolph, Terry;Economou, Sophia E.
创造大型高度纠缠“簇”态的能力对于基于测量的量子计算至关重要。我们证明了确定性的多光子纠缠可以从耦合的固态量子发射体中产生，而不需要任何两个量子比特门，也不管发射体是否相同。特别是，我们提出了一种通过直接使用始终在线的交换相互作用，结合单量子比特操作来控制纠缠产生的一般方法。这被用来提供一种生成二维、簇态纠缠光子的方法，这种方法可以用现有的量子点实验能力来实现。
The ability to create large highly entangled "cluster" states is crucial for measurement-based quantum computing. We show that deterministic multiphoton entanglement can be created from coupled solid state quantum emitters without the need for any two-qubit gates and regardless of whether the emitters are identical. In particular, we present a general method for controlled entanglement creation by making direct use of the always-on exchange interaction, in combination with single-qubit operations. This is used to provide a recipe for the generation of two-dimensional, cluster-state entangled photons that can be carried out with existing experimental capabilities in quantum dots.