Results 61 to 70 of about 2,360,364 (245)

Quantum Zeno repeaters

open access: yesScientific Reports, 2022
Quantum repeaters pave the way for long-distance quantum communications and quantum Internet, and the idea of quantum repeaters is based on entanglement swapping which requires the implementation of controlled quantum gates.
Veysel Bayrakci, Fatih Ozaydin
doaj   +1 more source

Quantum networks in 6G communications: technologies, challenges, and applications

open access: yes
Quantum networking represents a significant advancement in communication technology. As 6G networks emerge, integrating quantum principles—such as quantum key distribution (QKD) and entanglement-based communications—will be essential for achieving secure
Qian, Liangxin, Zhao, Jun
core   +1 more source

Self‐Sustaining Hybrid Passive Cooler Enabling Highly Effective Thermal Management for Outdoor Electronics

open access: yesAdvanced Science, EarlyView.
An innovative hybrid passive cooler integrates a porous radiative coating and an atmospheric moisture‐harvesting hydrogel within a melamine sponge skeleton, synergizing radiative cooling, sensible‐heat absorption, and latent‐heat evaporation. It maintains an average 8.3°C sub‐ambient cooling under sunlight and a maximum ∼42.4°C drop under 2000 W·m−2 ...
Qingyuan Du   +6 more
wiley   +1 more source

Advances in Se Wide‐Bandgap Photovoltaics and TexSe1‐x SWIR Photodiodes

open access: yesAdvanced Science, EarlyView.
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Adam D. Alfieri, Deep Jariwala
wiley   +1 more source

Nanosecond Ramsey spectroscopy for Ca beam optical clocks

open access: yesnpj Quantum Information
Atomic beam optical clocks offer continuous operation, simplified structure, and excellent short- to mid-term stability, making them promising candidates for next-generation optical flywheel clocks.
Jingming Chen   +8 more
doaj   +1 more source

Probabilistic Computing via Gate‐Tunable Random Telegraph Noise

open access: yesAdvanced Science, EarlyView.
Intrinsic random telegraph noise in metal–oxide–semiconductor field‐effect transistors is harnessed to create gate‐tunable probabilistic bits. By modulating carrier‐trapping dynamics, the device produces stochastic binary outputs with a continuous bias‐to‐probability transfer.
Gyungwon Yun   +8 more
wiley   +1 more source

A quantum convolutional neural network on NISQ devices

open access: yesAAPPS Bulletin, 2022
Quantum machine learning is one of the most promising applications of quantum computing in the noisy intermediate-scale quantum (NISQ) era. We propose a quantum convolutional neural network(QCNN) inspired by convolutional neural networks (CNN), which ...
ShiJie Wei   +3 more
doaj   +1 more source

Multimodal Imaging of Hypoxia, Metabolism and pH in Feline Sarcoma Using Hyperpolarized 13C MRI and PET

open access: yesAdvanced Science, EarlyView.
This work presents a clinically deployable simultaneous PET/MRI workflow which integrates hyperpolarized 13C imaging of metabolism and extracellular pH with [18F]FMISO PET to characterize hypoxia, acidosis, and metabolic reprogramming in feline sarcoma.
Martin Grashei   +17 more
wiley   +1 more source

Economic assessment of reasonability of introducing quantum communications in the energy sector

open access: yesМодернизация, инновация, развитие
Purpose: evaluation of economic reasonability of quantum transformation of the information security function using the example of energy sector facilities.Methods: the paper uses the author's model for assessing the economic efficiency of quantum ...
D. S. Lobov
doaj   +1 more source

Quantum search algorithms, quantum wireless, and a low-complexity maximum likelihood iterative quantum multi-user detector design

open access: yes, 2013
The high complexity of numerous optimal classic communication schemes, such as the maximum likelihood (ML) multiuser detector (MUD), often prevents their practical implementation.
Botsinis, Panagiotis   +5 more
core   +1 more source

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