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Deterministic Generation of Large-Scale Entangled Photonic Cluster State from Interacting Solid State Emitters

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...

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Bibliographic Details
Published in:Physical review letters 2019-08, Vol.123 (7), p.070501-070501, Article 070501
Main Authors: Gimeno-Segovia, Mercedes, Rudolph, Terry, Economou, Sophia E
Format: Article
Language:English
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Summary: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.123.070501