Results 61 to 70 of about 65,461 (314)

Surpassing the no-cloning limit with a heralded hybrid linear amplifier for coherent states

open access: yesNature Communications, 2016
Cloning an unknown quantum state is challenging and the limit on the quality of clones is set by the no-cloning theorem. Here, the authors demonstrated the surpassing of such a limit using an effective quantum cloner based on a hybrid probabilistic ...
Jing Yan Haw   +8 more
doaj   +1 more source

Quantum information to the home [PDF]

open access: yes, 2011
Information encoded on individual quanta will play an important role in our future lives, much as classically encoded digital information does today. Combining quantum information carried by single photons with classical signals encoded on strong laser ...
Robert J Young   +9 more
core   +1 more source

Mimicking Silent Synapse Recruitment: A SiOx/Cu‐Pancake Memristive Device For Analog Neuromorphic Computing

open access: yesAdvanced Functional Materials, EarlyView.
Electroforming‐free TiN/SiOx/Cu/SiOx/TiN memristive devices exploit pancake‐like Cu nanoparticles embedded in a SiOx double layer to create a heterogeneous Schottky‐barrier landscape. Under bias, oxygen‐vacancy redistribution progressively lowers local barriers and recruits initially inactive Cu‐PC pathways into a parallel conduction ensemble, enabling
Rouven Lamprecht   +10 more
wiley   +1 more source

Spontaneous parametric down conversion without poling for silicon carbide and lithium niobate photonics

open access: yesScientific Reports
State-of-the-art photon sources based on spontaneous parametric down-conversion (SPDC) currently rely on artificial structuring of the material nonlinearity to satisfy phase-matching conditions. This technique, known as periodic poling, is available only
Tim F. Weiss   +3 more
doaj   +1 more source

Experimental noiseless linear amplification using weak measurements

open access: yesNew Journal of Physics, 2016
The viability of quantum communication schemes rely on sending quantum states of light over long distances. However, transmission loss can degrade the signal strength, adding noise.
Joseph Ho   +3 more
doaj   +1 more source

Quantum Communication Complexity with Coherent States and Linear Optics [PDF]

open access: yes, 2014
We introduce a general mapping for encoding quantum communication protocols involving pure states of multiple qubits, unitary transformations, and projective measurements into another set of protocols that employ coherent states of light in a ...
Lütkenhaus, Norbert   +1 more
core   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

Nonlocality activation in a photonic quantum network

open access: yesNature Communications
Bell nonlocality refers to correlations between two distant, entangled particles that challenge classical notions of local causality. Beyond its foundational significance, nonlocality is crucial for device-independent technologies like quantum key ...
Luis Villegas-Aguilar   +11 more
doaj   +1 more source

Reconfigurable ultra-compact graphene-based plasmonic devices

open access: yesResults in Physics, 2022
We have proposed and investigated an ultra-compact graphene-based plasmonic device, where the propagation direction of SPP can be controlled flexibly by changing the chemical potential of graphene. The plasmonic devices with numerous functions, including
Yuncai Feng   +3 more
doaj   +1 more source

Solid-state photonic interfaces using semiconductor quantum dots [PDF]

open access: yes, 2012
New technologies based on the properties of quantum mechanics promise to revolutionise the way information is processed by outperforming what is possible using classical devices.

core   +2 more sources

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