Atomic vapor quantum memory for on-demand semiconductor single photon sources

Esteban Gómez-López; Karol Winkler; Jonathan Jurkat; Moritz Meinecke; Janik Wolters; Tobias Huber-Loyola; Sven Höfling; Oliver Benson

doi:10.1117/12.2672216

19 July 2023 Atomic vapor quantum memory for on-demand semiconductor single photon sources

Esteban Gómez-López, Karol Winkler, Jonathan Jurkat, Moritz Meinecke, Janik Wolters, Tobias Huber-Loyola, Sven Höfling, Oliver Benson

Author Affiliations +

Proceedings Volume 12633, Photonics for Quantum 2023; 1263304 (2023) https://doi.org/10.1117/12.2672216
Event: Photonics for Quantum, 2023, Rochester, New York, United States

Abstract

Quantum memories can substantially increase the efficiency of long-distance communications by synchronizing entanglement swapping operations in quantum repeater nodes. To build a quantum memory, electromagnetically induced transparency (EIT) in atomic vapors can be exploited to coherently store light pulses even at room temperatures. As a quantum source of light, semiconductor quantum dots (QD) offer bright on-demand single photons with high purity.4 Interfacing QDs with atomic vapors has been shown by “slow light” but a quantum memory for QDs is yet to be demonstrated. In this work, we develop an EIT quantum memory hosted in warm cesium vapor. Storage of faint coherent light pulses on the single photon level shows high storage efficiency. A measured bandwidth in the order of 200 MHz makes the memory compatible with the Fourier-limited emission of QDs embedded in micropillar cavities. We show the first attempts to interface the emission from a QD-micropillar with our quantum memory by finetuning the emission wavelength of the emitters to one of the hyperfine transitions in Cs, where the EIT memory takes place. This work sets the base for a hybrid quantum memory based on atomic ensembles for an on-demand semiconductor single-photon source.

Conference Presentation

Citation Download Citation

Esteban Gómez-López, Karol Winkler, Jonathan Jurkat, Moritz Meinecke, Janik Wolters, Tobias Huber-Loyola, Sven Höfling, and Oliver Benson "Atomic vapor quantum memory for on-demand semiconductor single photon sources", Proc. SPIE 12633, Photonics for Quantum 2023, 1263304 (19 July 2023); https://doi.org/10.1117/12.2672216

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available