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Dates: 

Monday, March 15, 2021 to Friday, March 19, 2021

Submission deadline: 

Friday, October 23, 2020

Registration deadline: 

Monday, January 25, 2021

The American Physical Society (APS) March Meeting (15-19 March 2021) is currently accepting abstracts for contributed talks with a deadline of October 23.

Submission URL: https://march.aps.org/abstracts/

The APS has announced that the meeting will either take place in an in-person/virtual hybrid format or in a completely virtual format. In either case, participants will have the option of presenting their talk virtually.

The Department of Computer Science of Technical University of Darmstadt invites applications for the position of an

Assistant Professor (W2 Tenure Track) for Quantum Computing

starting as soon as possible.

Since 1990, the volt has been defined using superconducting devices called Josephson junctions. The DC voltage across a Josephson junction is related only via fundamental constants to the frequency of an applied microwave signal. As existing microwave sources have frequency stability well below one part-per-billion (ppb), so is the precision of the Josephson voltage standard.

Solid-state spins in an optical cavity

The ultimate goal is to create spin-spin entanglements at useful rates. A number of challenges have to be overcome. The materials processing must be improved in order to create optically-coherent NV centres in thin diamond-membranes. Quantum optics-based techniques must be used to quantify the properties of the photons: their purity and indistinguishability. Spin manipulation must be combined with the cavity setup. Techniques must be established to tune remote NV centres into resonance with each other. The project will offer experience in all these fields, along with possibilities to explore the application of the same cavity structure to other solid-state systems, for instance semiconductor quantum dots.

Hybrid quantum networks with atomic memories and quantum dot single-photon sources

The goal of this project is to interface the two systems through an optical fiber link that was recently installed in Basel. Several improvements will be implemented to achieve low-noise operation: controlling the charge state of the dot and enhancing the photon collection efficiency with an optical cavity, as well as controlling the spin state of the atoms to suppress four-wave mixing noise by selection rules. After demonstrating storage and retrieval of quantum dot single photons in the atomic memory, we intend to perform basic quantum networking tasks such as entangling two remote atomic memories.

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