Remote entanglement stabilization for modular quantum computing

Nicolas Didier 1 Jérémie Guillaud 1 S. Shankar 2 Mazyar Mirrahimi 1
1 QUANTIC - QUANTum Information Circuits
ENS Paris - École normale supérieure - Paris, UPMC - Université Pierre et Marie Curie - Paris 6, MINES ParisTech - École nationale supérieure des mines de Paris, Inria de Paris
Abstract : Quantum information processing in a modular architecture requires to distribute and stabilize entanglement in a qubit network. We present autonomous entanglement stabilization protocols between two qubits that are coupled to distant cavities. The cavities coupling is mediated and controlled via a three-wave mixing device that generates either a delocalized mode or a two-mode squeezed state between the remote cavities depending on the pump frequency. Local drives on the qubits and the cavities steer and maintain the system to the desired qubit Bell state. Most spectacularly, even a weakly-squeezed state can stabilize a maximally entangled Bell state of two distant qubits through entanglement accumulation. We show that reservoir-engineering based protocols can stabilize entanglement in presence of qubit-cavity asymmetries and losses.
Type de document :
Pré-publication, Document de travail
5 pages, 4 figures. 2017
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https://hal.inria.fr/hal-01652766
Contributeur : Mazyar Mirrahimi <>
Soumis le : jeudi 30 novembre 2017 - 16:27:33
Dernière modification le : mardi 17 avril 2018 - 09:04:17

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  • HAL Id : hal-01652766, version 1
  • ARXIV : 1703.03379

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Nicolas Didier, Jérémie Guillaud, S. Shankar, Mazyar Mirrahimi. Remote entanglement stabilization for modular quantum computing. 5 pages, 4 figures. 2017. 〈hal-01652766〉

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