Integrated devices and high-dimensional photonic systems for quantum technologies

Quantum technologies promise a change of paradigm for many fields of application, for example in communication systems, in high-performance computing and simulation of quantum systems, as well as in sensor technology. However, the experimental realization of suitable system still poses considerable challenges. Current efforts in photonic quantum target the implementation of practical and scalable systems, where the realization of controlled quantum network structures is key for many applications.

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Quantum Key Distribution with Integrated Photonics

Quantum computing’s rapid advancement threatens current cryptography, which relies on complex problems solvable by quantum computers. This necessitates the development of “quantum-safe” technologies for future network protection. Today’s data is also at risk from “harvest now, decrypt later” attacks, where encrypted messages are stored for decryption once quantum processors are available. This is especially concerning for long-term valuable information like financial records and medical data.

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Integrated and nonlinear photonics in thin film lithium niobate

An invited speaker presentation by Professor Katia Gallo, head of the Nonlinear and Quantum Photonics group at KTH – Royal Institute of Technology. Her activity spans theory, technology and experiments in nonlinear photonic crystals and integrated devices. She also leads the Quantum Communication program of the Wallenberg Centre for Quantum Technology and the National Quantum Communication Infrastructure in Sweden.

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Single solid-state quantum emitter photonics for on-chip quantum information

Single solid-state quantum emitters have demonstrated considerable potential for the implementation of important quantum photonic devices such as on-demand single-photon sources or deterministic quantum logic gates. Converting a bare quantum emitter into a device with sufficient performance for use in quantum photonic systems requires an efficient, high cooperativity interface to accessing optical fields.

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Integrated photonic quantum technologies

Remarkable progress has been made in the development of hardware for quantum technologies. As a platform for quantum technologies, integrated photonics has enabled significant leaps for integrating many components, including programmable circuitry, photon sources and detectors. However, machines such as fault tolerant quantum computers appear to be a long way off for all platforms, including photonics.

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Quantum photonics based on nonlinear integrated optics

is the title of the presentation by invited speaker Christine Silberhorn, Professor, Paderborn University, Germany. The IQO group develops novel optical devices and methods for possible future applications in quantum information processing, quantum communication and for fundamental quantum experiments. Exploiting the potential of integrated optical devices enables on the one hand the realization of compact, miniaturized and rugged quantum lights sources and converters.

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Photonic Black-box Modules for Machine Intelligence

An invited speaker presentation by Volker Sorger, George Washington University (USA). He is an Associate Professor in the Department of Electrical and Computer Engineering and the director of the Devices & Intelligent Systems Laboratory at The George Washington University. His research areas include devices & optoelectronics, AI/ML accelerators, mixed-signal ASICs, quantum matter & quantum processors, and cryptography.

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