Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

The Japan Society of Applied Physics

Robustness characterization of quantum-dot entangled photon source

Takashi Kuroda, Takaaki Mano, Neul Ha, Xiangming Liu, Yoshiki Sakuma, Kazuaki Sakoda

Published Jul 22, 2016• 0 citations
OpenAlex

Related papers

Quantum-dot-based single and entangled photon sources

H. Kumano

The Japan Society of Applied Physics•Feb 6, 2015•0 citations

Generation of robust entanglement in plasmonically coupled quantum dots driven by quantum squeezed light

Sina Soleimanikahnoj, Stephen K. Gray, Norbert F. Scherer

Can quantum light reliably generate entanglement in systems with dissipation? Our cavity quantum electrodynamics calculations demonstrate that a single-mode squeezed light source can robustly generate steady-state entanglement between a plasmonically coupled pair of quantum dots. The strong coupling of plasmons to the light source and the pairwise nature of squeezed photon generation enable entanglement between quantum dots. This entanglement, measured as concurrence, can be improved by replacing an entangled photon-pair pulsed source of light with continuous pumping of squeezed photons. Unlike previously introduced schemes, the concurrence is robust against variations in the system parameters. Specifically, the generation of entanglement does not rely on fine-tuning of the plasmon-quantum dot coupling. These results provide a new perspective for robust entangled-state preparation in open quantum systems.

arXiv:2312.00608•The Journal of Chemical Physics•Jul 9, 2026•0 citations

Semi-Device Independent Methods to Characterize Multiphoton Indistinguishability

Giovanni Rodari, Leonardo Novo, Riccardo Albiero +15 more

Assessing photonic indistinguishability is a crucial element for photon-based quantum information. Here we present semi-device independent methods for its robust characterization, validating them using a demultiplexed quantum-dot source interfaced with a programmable photonic processor.

•Jan 1, 2025•0 citations

Eliminating temporal correlation in quantum-dot entangled photon source by quantum interference

Runze Liu, Yu-Kun Qiao, Han-Sen Zhong +6 more

arXiv:2212.13126•中国科学通报：英文版•Mar 16, 2023•7 citations

Generating triggered single and entangled photons with a semiconductor source

Robert James Young, R. M. Stevenson, Andrew J. Hudson +4 more

For scalable applications of optical quantum information it is desirable to have a well controlled source of photons, producing single photons or entangled-pairs on-demand. The finite delay following decay of an exciton confined in a quantum dot makes them a good source of single photons, we demonstrate this, triggering the emission with a pulsed laser. Currently the most widely used techniques for generating entangled photon pairs are nonlinear optical processes, such as parametric down conversion, which produces a probabilistic number of pairs per excitation cycle. Such a source is of limited use in quantum information/processing applications where a regular stream of single entangled photon pairs is preferable. We produced such a triggered source from a semiconductor device for the first time, using the two-photon cascade from a biexciton confined in a single quantum dot. We demonstrate a fidelity of 70% for the emission from the biexciton cascade to the expected bell state. Single quantum dots could prove to be the first robust and compact triggered source of entangled photons.

•Jan 1, 2007•0 citations

An efficient entangled-photon source from semiconductor quantum dots

Chao Feng Zhao, Zhijie Wang

Journal of Semiconductors•Jan 1, 2020•3 citations
Can quantum light reliably generate entanglement in systems with dissipation? Our cavity quantum electrodynamics calculations demonstrate that a single-mode squeezed light source can robustly generate steady-state entanglement between a plasmonically coupled pair of quantum dots. The strong coupling of plasmons to the light source and the pairwise nature of squeezed photon generation enable entanglement between quantum dots. This entanglement, measured as concurrence, can be improved by replacing an entangled photon-pair pulsed source of light with continuous pumping of squeezed photons. Unlike previously introduced schemes, the concurrence is robust against variations in the system parameters. Specifically, the generation of entanglement does not rely on fine-tuning of the plasmon-quantum dot coupling. These results provide a new perspective for robust entangled-state preparation in open quantum systems.
For scalable applications of optical quantum information it is desirable to have a well controlled source of photons, producing single photons or entangled-pairs on-demand. The finite delay following decay of an exciton confined in a quantum dot makes them a good source of single photons, we demonstrate this, triggering the emission with a pulsed laser. Currently the most widely used techniques for generating entangled photon pairs are nonlinear optical processes, such as parametric down conversion, which produces a probabilistic number of pairs per excitation cycle. Such a source is of limited use in quantum information/processing applications where a regular stream of single entangled photon pairs is preferable. We produced such a triggered source from a semiconductor device for the first time, using the two-photon cascade from a biexciton confined in a single quantum dot. We demonstrate a fidelity of 70% for the emission from the biexciton cascade to the expected bell state. Single quantum dots could prove to be the first robust and compact triggered source of entangled photons.