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Showing 2014 · quant-phShow all

13 papers · 2 filters

quant-ph2014★ 63 cited

Stückelberg interference in a superconducting qubit under periodic latching modulation

M. P. Silveri, K. S. Kumar, J. Tuorila +4

When the level separation of a qubit is modulated periodically across an avoided crossing, tunneling to the excited state - and consequently Landau-Zener-Stückelberg interference -…

quant-ph2014★ 27 cited

Quantum noise of non-ideal Sagnac speed meter interferometer with asymmetries

S. L. Danilishin, C. Graef, S. S. Leavey +6

The speed meter concept has been identified as a technique that can potentially provide laser-interferometric measurements at a sensitivity level which surpasses the Standard Quant…

quant-ph2014★ 271 cited

Qubit entanglement on a silicon photonic chip

Joshua W. Silverstone, Raffaele Santagati, Damien Bonneau +4

Entanglement--one of the most delicate phenomena in nature--is an essential resource for quantum information applications. Large entangled cluster states have been predicted to ena…

quant-ph2014★ 285 cited

Divergence of an orbital-angular-momentum-carrying beam upon propagation

Miles J. Padgett, Filippo M. Miatto, Martin Lavery +2

There is recent interest in the use of light beams carrying orbital angular momentum (OAM) for creating multiple channels within free-space optical communication systems. One limit…

quant-ph2014★ 23 cited

High visibility two photon interference of frequency time entangled photons generated in a quasi phase matched AlGaAs waveguide

Peyman Sarrafi, Eric Y. Zhu, Barry M. Holmes +3

We demonstrate experimentally the frequency time entanglement of photon pairs produced in a CW pumped quasi phased matched AlGaAs superlattice waveguide. A visibility of 96.0+-0.7%…

quant-ph2014

The duality principle in the presence of postselection

Jonathan Leach, Eliot Bolduc, Filippo. M. Miatto +3

The duality principle, a cornerstone of quantum mechanics, limits the coexistence of wave and particle behaviours of quantum systems. This limitation takes a quantitative form when…

quant-ph2014★ 34 cited

Experimental Implementation of a Quantum Optical State Comparison Amplifier

Ross J. Donaldson, Robert J. Collins, Electra Eleftheriadou +3

Quantum optical amplification that beats the noise addition limit for deterministic amplifiers has been realized experimentally using several different nondeterministic protocols.…

quant-ph2014★ 135 cited

Gallium Arsenide (GaAs) Quantum Photonic Waveguide Circuits

Jianwei Wang, Alberto Santamato, Pisu Jiang +14

Integrated quantum photonics is a promising approach for future practical and large-scale quantum information processing technologies, with the prospect of on-chip generation, mani…

quant-ph2014★ 31 cited

Discriminating single-photon states unambiguously in high dimensions

Megan Agnew, Eliot Bolduc, Kevin J. Resch +2

The ability to uniquely identify a quantum state is integral to quantum science, but for non-orthogonal states, quantum mechanics precludes deterministic, error-free discrimination…

quant-ph2014★ 353 cited

Higher-dimensional orbital angular momentum based quantum key distribution with mutually unbiased bases

Mhlambululi Mafu, Angela Dudley, Sandeep Goyal +7

We present an experimental study of higher-dimensional quantum key distribution protocols based on mutually unbiased bases, implemented by means of photons carrying orbital angular…

quant-ph2014★ 13 cited

Nano-optical observation of cascade switching in a parallel superconducting nanowire single photon detector

Robert M. Heath, Michael G. Tanner, Alessandro Casaburi +5

The device physics of parallel-wire superconducting nanowire single photon detectors is based on a cascade process. Using nano-optical techniques and a parallel wire device with sp…

quant-ph2014★ 653 cited

High-dimensional quantum cryptography with twisted light

Mohammad Mirhosseini, Omar S. Magaña-Loaiza, Malcolm N. O'Sullivan +6

Quantum key distributions (QKD) systems often rely on polarization of light for encoding, thus limiting the amount of information that can be sent per photon and placing tight boun…

quant-ph2014★ 239 cited

Interface between path and OAM entanglement for high-dimensional photonic quantum information

Robert Fickler, Radek Lapkiewicz, Marcus Huber +3

Photonics has become a mature field of quantum information science, where integrated optical circuits offer a way to scale the complexity of the setup as well as the dimensionality…