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Spin Qubits Silicon Quantum Computing Superconducting Qubits

Detection of Nonlocal Spin Entanglement by Light Emission from a Superconducting p-n Junction

arXiv
Authors: Alexander Schroer, Patrik Recher

Year

2014

Paper ID

45633

Status

Preprint

Abstract Read

~2 min

Abstract Words

110

Citations

N/A

Abstract

We model a superconducting p-n junction in which the n- and the p-sides are contacted through two optical quantum dots (QDs), each embedded into a photonic nanocavity. Whenever a Cooper pair is transferred from the n-side to the p-side, two photons are emitted. When the two electrons of a Cooper pair are transported through different QDs, polarization-entangled photons are created, provided that the Cooper pairs retain their spin singlet character while being spatially separated on the two QDs. We show that a CHSH Bell-type measurement is able to detect the entanglement of the photons over a broad range of microscopic parameters, even in the presence of parasitic processes and imperfections.

Why This Paper Matters

  • This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
  • It adds a 2014 reference point for readers tracking recent quantum research.
  • We model a superconducting p-n junction in which the n- and the p-sides are contacted through two optical quantum dots (QDs), each embedded into a photonic nanocavity.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1412.8619 [2] arXiv https://arxiv.org/abs/1412.8619 [3] Publisher https://arxiv.org/abs/1412.8619

Local Citation Graph (Related-Paper Links)

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