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19922026
most citedObservation of Gravitational Waves from a Binary Black Hole Merger

14.2k citations

Showing 2019 · quant-phShow all

14 papers · 2 filters

quant-ph2019★ 23 cited

State preparation of a fluxonium qubit with feedback from a custom FPGA-based platform

Richard Gebauer, Nick Karcher, Daria Gusenkova +12

We developed a versatile integrated control and readout instrument for experiments with superconducting quantum bits (qubits), based on a field-programmable gate array (FPGA) platf…

quant-ph2019★ 25 cited

Revealing and concealing entanglement with non-inertial motion

Marko Toroš, Sara Restuccia, Graham M. Gibson +4

Photon interference and bunching are widely studied quantum effects that have also been proposed for high precision measurements. Here we construct a theoretical description of pho…

quant-ph2019★ 117 cited

Unscrambling Entanglement through a Complex Medium

Natalia Herrera Valencia, Suraj Goel, Will McCutcheon +2

The transfer of quantum information through a noisy environment is a central challenge in the fields of quantum communication, imaging and nanophotonics. In particular, high-dimens…

quant-ph2019★ 400 cited

Imaging with quantum states of light

Paul-Antoine Moreau, Ermes Toninelli, Thomas Gregory +1

The production of pairs of entangled photons simply by focusing a laser beam onto a crystal with a non-linear optical response was used to test quantum mechanics and to open new ap…

quant-ph2019★ 33 cited

Amplitude and frequency sensing of microwave fields with a superconducting transmon qudit

Maximilian Kristen, Andre Schneider, Alexander Stehli +9

Experiments with superconducting circuits require careful calibration of the applied pulses and fields over a large frequency range. This remains an ongoing challenge as commercial…

quant-ph2019★ 178 cited

Imaging Through Noise With Quantum Illumination

Thomas Gregory, Paul-Antoine Moreau, Ermes Toninelli +1

The contrast of an image can be degraded by the presence of background light and sensor noise. To overcome this degradation, quantum illumination protocols have been theorised (Sci…

quant-ph2019★ 9 cited

Multiple-copy state discrimination of noisy qubits

Kieran Flatt, Stephen M. Barnett, Sarah Croke

Multiple-copy state discrimination is a fundamental task in quantum information processing. If there are two, pure, non-orthogonal states then both local and collective schemes are…

quant-ph2019★ 3 cited

Quantum, Nonlocal Aberration Cancellation

A. Nicholas Black, Enno Giese, Boris Braverman +3

Phase distortions, or aberrations, can negatively influence the performance of an optical imaging system. Through the use of position-momentum entangled photons, we nonlocally corr…

quant-ph2019★ 50 cited

Photon bunching in a rotating reference frame

Sara Restuccia, Marko Toros, Graham M. Gibson +3

Although quantum physics is well understood in inertial reference frames (flat spacetime), a current challenge is the search for experimental evidence of non-trivial or unexpected…

quant-ph2019★ 64 cited

Two-photon Quantum Interference and Entanglement at 2 μm

Shashi Prabhakar, Taylor Shields, Adetunmise Dada +12

Quantum-enhanced optical systems operating within the 2- to 2.5-m spectral region have the potential to revolutionize emerging applications in communications, sensing, and metro…

quant-ph2019★ 24 cited

Theory of quantum-vacuum detection

Frieder Lindel, Robert Bennett, Stefan Yoshi Buhmann

Recent progress in electro-optic sampling has allowed direct access to the fluctuations of the electromagnetic ground state. Here, we present a theoretical formalism that allows fo…

quant-ph2019★ 27 cited

Transmon Qubit in a Magnetic Field: Evolution of Coherence and Transition Frequency

Andre Schneider, Tim Wolz, Marco Pfirrmann +4

We report on spectroscopic and time-domain measurements on a fixed-frequency concentric transmon qubit in an applied in-plane magnetic field to explore its limits of magnetic field…

quant-ph2019★ 32 cited

Magnons at low excitations: Observation of incoherent coupling to a bath of two-level-systems

Marco Pfirrmann, Isabella Boventer, Andre Schneider +4

Collective magnetic excitation modes, magnons, can be coherently coupled to microwave photons in the single excitation limit. This allows for access to quantum properties of magnon…

quant-ph2019★ 109 cited

Programmable linear quantum networks with a multimode fibre

Saroch Leedumrongwatthanakun, Luca Innocenti, Hugo Defienne +4

Reconfigurable quantum circuits are fundamental building blocks for the implementation of scalable quantum technologies. Their implementation has been pursued in linear optics thro…