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SYQC: Symposium Quantum Communication: Promises or Reality?

SYQC 1: Quantum Communication: Promises or Reality?

SYQC 1.3: Invited Talk

Friday, March 22, 2024, 10:45–11:15, H 0105

Laser triggering of quantum light sources using engineered optical pulses — •Kimberley Hall — Dalhousie University, Halifax, Nova Scotia Canada B3H 4R2

Emerging quantum technologies such as photonic quantum computers, quantum cryptography, and quantum imaging require sources of single and/or entangled photons that may be triggered on demand. Solid-state quantum emitters based on semiconductor quantum dots offer the potential for integration into scalable photonic platforms and possess high radiative quantum efficiencies and strong optical transitions. Femtosecond pulse shaping provides a highly flexible approach to tailoring optically mediated quantum gates involving solid-state qubit and quantum emitter systems. In this talk, I will highlight the tools and methods associated with optimal quantum control and describe our application of these techniques to the parallel driving of emitters for the multiplexing of quantum light sources [1]. A new laser driving scheme developed by our group for triggering single photon emitters will also be described [2]. [1] A. Ramachandran et al. Robust parallel laser driving of quantum dots for multiplexing of quantum light sources, arXiv/2203.01385 (2023). [2] G. R. Wilbur et al. Notch-filtered adiabatic rapid passage for optically driven quantum light sources, APL Photonics 7, 111302 (2022).

Keywords: quantum dot; pulse shaping; femtosecond microscopy; quantum emitter; single photon source