Results 51 to 60 of about 130,740 (286)

Minimum error probability of quantum illumination [PDF]

open access: yesPhysical Review A, 2018
Quantum illumination is a technique for detecting the presence of a target in a noisy environment by means of a quantum probe. We prove that the two-mode squeezed vacuum state is the optimal probe for quantum illumination in the scenario of asymmetric discrimination, where the goal is to minimize the decay rate of the probability of a false positive ...
De Palma, G, Borregaard, J
openaire   +3 more sources

Donor binding energy and thermally activated persistent photoconductivity in high mobility (001) AlAs quantum wells

open access: yes, 2007
A doping series of AlAs (001) quantum wells with Si delta-modulation doping on both sides reveals different dark and post-illumination saturation densities, as well as temperature dependent photoconductivity.
Abstreiter, G.   +7 more
core   +1 more source

An introduction to ghost imaging: quantum and classical [PDF]

open access: yes, 2017
Ghost imaging has been a subject of interest to the quantum optics community for the past 20 years. Initially seen as manifestation of quantum spookiness, it is now recognized as being implementable in both single- and many-photon number regimes.
Boyd, Robert W., Padgett, Miles J.
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Electron magnetotransport in GaAs/AlGaAs superlattices with weak and strong inter-well coupling

open access: yes, 2007
We report on magnetotransport measurements in two MBE-grown GaAs/AlGaAs superlattices formed by wide and narrow quantum wells and thin Si-doped barriers subject to tilted magnetic fields.
Esaki   +9 more
core   +1 more source

The Role of Surface Passivation for Efficient and Photostable PbS Quantum Dot Solar Cells [PDF]

open access: yes, 2016
Peer ReviewedPostprint (author's final ...
Cao, Yiming   +4 more
core   +2 more sources

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

open access: yesAdvanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park   +8 more
wiley   +1 more source

Thermal blinding of gated detectors in quantum cryptography

open access: yes, 2010
It has previously been shown that the gated detectors of two commercially available quantum key distribution (QKD) systems are blindable and controllable by an eavesdropper using continuous-wave illumination and short bright trigger pulses, manipulating ...
Bethune   +47 more
core   +1 more source

Quantum illumination and quantum radar: a brief overview

open access: yesReports on Progress in Physics
Abstract Quantum illumination (QI) and quantum radar have emerged as potentially groundbreaking technologies, leveraging the principles of quantum mechanics to revolutionise the field of remote sensing and target detection. The protocol, particularly in the context of quantum radar, has been subject to a great deal of aspirational ...
Athena Karsa   +3 more
openaire   +4 more sources

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

open access: yesAdvanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang   +7 more
wiley   +1 more source

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