Lecturer: Konrad Banaszek, Centre of New Technologies, University of Warsaw, Poland
Abstract:
Quantum fingerprinting allows two remote parties to determine
whether their datasets are identical or different by transmitting
exponentially less information compared to the classical protocol
with equivalent performance. Optical implementations of quantum
fingerprinting based on coherent states of light require phase
stability between the sending parties. Here we present a quantum
fingerprinting protocol using higher-order optical interference
which can process optical signals with a random global phase.