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The influence of pump coherence on the generation of position-momentum entanglement in down-conversion
Wuhong Zhang, Robert Fickler, Enno Giese +2
Strong correlations in two conjugate variables are the signature of quantum entanglement and have played a key role in the development of modern physics. Entangled photons have bec…
Structured Quantum Projectiles
Hugo Larocque, Robert Fickler, Eliahu Cohen +4
Matter wave interferometry is becoming an increasingly important technique in quantum metrology. However, unlike its photonic counterpart, this technique relies on the interference…
A Primary Radiation Standard Based on Quantum Nonlinear Optics
Samuel Lemieux, Enno Giese, Robert Fickler +2
The spectrum of vacuum fluctuations of the electromagnetic field is determined solely from first physical principles and can be seen as a fundamental property that qualifies as a p…
Measuring azimuthal and radial modes of photons
Frédéric Bouchard, Natalia Herrera Valencia, Florian Brandt +3
With the emergence of the field of quantum communications, the appropriate choice of photonic degrees of freedom used for encoding information is of paramount importance. Highly pr…
Influence of pump coherence on the quantum properties of spontaneous parametric down-conversion
Enno Giese, Robert Fickler, Wuhong Zhang +2
The correlation properties of the pump field in spontaneous parametric down-conversion are crucial in determining the degree of entanglement of generated signal and idler photons.…
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…