Controlled emission of entangled multiphoton states from cascaded quantum wells

Amir Sivan; Meir Orenstein

doi:10.1021/acsphotonics.3c00659

Controlled emission of entangled multiphoton states from cascaded quantum wells

Quantum Physics 2024-01-02 v2

Authors: Amir Sivan , Meir Orenstein

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Abstract

We propose a deterministic source of entangled multiphoton states based on spontaneous emission from a ladder of a cascaded quantum well structure. The coupling between the quantum wells enables a many-path evolution with the emission of photon-number combination states in three modes. The tripartite multiphoton state can be used for controlling the entanglement between two multiphoton modes by measuring the third. We further discuss an application as a qubit-pair source with an error-detection ancilla.

Keywords

entangled multiphoton states cascaded quantum wells spontaneous emission deterministic source error-detection ancilla photon-number combination states

Cite

@article{arxiv.2302.00474,
  title  = {Controlled emission of entangled multiphoton states from cascaded quantum wells},
  author = {Amir Sivan and Meir Orenstein},
  journal= {arXiv preprint arXiv:2302.00474},
  year   = {2024}
}

Comments

5 pages + 1 SM, 3 figures, added clarifications

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