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6 papers · 2 filters
Optical Detection of Paramagnetic Defects in a CVD-grown Diamond
C. Pellet-Mary, P. Huillery, M. Perdriat +2
The electronic spins of the nitrogen-vacancy centers (NV centers) in Chemical-Vapor-Deposition (CVD) grown diamonds form ideal probes of magnetic fields and temperature, as well as…
Magnifying quantum phase fluctuations with Cooper-pair pairing
W. C. Smith, M. Villiers, A. Marquet +6
Remarkably, complex assemblies of superconducting wires, electrodes, and Josephson junctions are compactly described by a handful of collective phase degrees of freedom that behave…
Wigner distribution on a double cylinder phase space for studying quantum error correction protocol
N. Fabre, A. Keller, P. Milman
We introduce a quasi-probability phase space distribution with two pairs of azimuthal-angular coordinates. This representation is well adapted to describe quantum systems with disc…
Optimisation of a diamond nitrogen vacancy centre magnetometer for sensing of biological signals
James Webb, Luca Troise, Nikolaj W. Hansen +9
Sensing of signals from biological processes, such as action potential propagation in nerves, are essential for clinical diagnosis and basic understanding of physiology. Sensing ca…
Producing delocalized frequency-time Schrödinger cat-like states with HOM interferometry
N. Fabre, J. Belhassen, A. Minneci +7
In the late 80's, Ou and Mandel experimentally observed signal beatings by performing a non-time resolved coincidence detection of two photons having interfered in a balanced beam…
Multiplexed photon number measurement
Antoine Essig, Quentin Ficheux, Théau Peronnin +6
When a two-level system -- a qubit -- is used as a probe of a larger system, it naturally leads to answering a single yes-no question about the system state. Here we propose a meth…