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Theory of cavity-enhanced non-destructive detection of photonic qubits in a solid-state atomic ensemble
Sumit Goswami, Khabat Heshami, Christoph Simon
Non-destructive detection of photonic qubits will enable important applications in photonic quantum information processing and quantum communications. Here, we present an approach…
Quantum process tomography of a high-dimensional quantum communication channel
Frédéric Bouchard, Felix Hufnagel, Dominik Koutný +5
The characterization of quantum processes, e.g. communication channels, is an essential ingredient for establishing quantum information systems. For quantum key distribution protoc…
Round-Robin Differential Phase-Shift Quantum Key Distribution with Twisted Photons
Frédéric Bouchard, Alicia Sit, Khabat Heshami +2
Quantum key distribution (QKD) offers the possibility for two individuals to communicate a securely encrypted message. From the time of its inception in 1984 by Bennett and Brassar…
Experimental investigation of high-dimensional quantum key distribution protocols with twisted photons
Frédéric Bouchard, Khabat Heshami, Duncan England +5
Quantum key distribution is on the verge of real world applications, where perfectly secure information can be distributed among multiple parties. Several quantum cryptographic pro…
Underwater Quantum Key Distribution in Outdoor Conditions with Twisted Photons
Frédéric Bouchard, Alicia Sit, Felix Hufnagel +8
Quantum communication has been successfully implemented in optical fibres and through free-space [1-3]. Fibre systems, though capable of fast key rates and low quantum bit error ra…