Results 131 to 140 of about 15,513 (309)

Optimal quantum states for frequency estimation

New Journal of Physics, 2014
We investigate different quantum parameter estimation scenarios in the presence of noise, and identify optimal probe states. For frequency estimation of local Hamiltonians with dephasing noise, we determine optimal probe states for up to 70 qubits, and ...
F Fröwis, M Skotiniotis, B Kraus, W Dür   +3 more
doaj   +1 more source

Does Participating in Agricultural Global Value Chains Promote Agricultural Growth?

Agribusiness, EarlyView.
ABSTRACT This study examines the relationship between GVC participation and agricultural value‐added growth in 43 countries over the period 1995–2022. In contrast to prior literature, we disaggregate the agricultural sector into four sub‐sectors namely crop cultivation, animal production, forestry and fishing.
Taner Turan, Halit Yanıkkaya, Hüseyin Alperen Özer   +2 more
wiley   +1 more source

Fundamental limits to the generation of highly displaced bright squeezed light using linear optics and parametric amplifiers

Physical Review Research
High-quality squeezed light is an important resource for a variety of applications. Multiple methods for generating squeezed light are known, having been demonstrated theoretically and experimentally.
Steve M. Young, Daniel Soh
doaj   +1 more source

Gas–liquid mass transfer enhancement in the presence of nanoparticles under slug flow in microreactors

AIChE Journal, EarlyView.
Abstract Nanofluids containing nanoparticles represent a promising solvent or reaction system for gas–liquid operations. Herein, the effect of nanoparticle (Al2O3 and SiO2) addition on gas–liquid slug flow pattern and mass transfer enhancement was investigated during CO2 absorption into water in microreactors.
Jie Zong, Jun Yue
wiley   +1 more source

Quantum-squeezing effects of strained multilayer graphene NEMS

Nanoscale Research Letters, 2011
Quantum squeezing can improve the ultimate measurement precision by squeezing one desired fluctuation of the two physical quantities in Heisenberg relation. We propose a scheme to obtain squeezed states through graphene nanoelectromechanical system (NEMS)
Wang Yuelin, Xu Yang, Yan Sheping, Jin Zhonghe   +3 more
doaj  

Data‐Guided Photocatalysis: Supervised Machine Learning in Water Splitting and CO2 Conversion

Advanced Intelligent Discovery, EarlyView.
This review highlights recent advances in supervised machine learning (ML) for photocatalysis, emphasizing methods to optimize photocatalyst properties and design materials for solar‐driven water splitting and CO2 reduction. Key applications, challenges, and future directions are discussed, offering a practical framework for integrating ML into the ...
Paul Rossener Regonia, Christian Mark Pelicano   +1 more
wiley   +1 more source

Squeezed states of light in micromaser

Moldavian Journal of the Physical Sciences, 2006
We study a lossless micromaser with atomic polarization. It is shown that for certain values of time of the atomic flight through the cavity, the field evolves to a pure state. The squeezing properties of the cavity field are examined.
Coroli, Vlad, Ciorbă, Valeriu
doaj  

Magnon squeezing via reservoir-engineered optomagnomechanics

APL Photonics
We show how to prepare magnonic squeezed states in an optomagnomechanical system in which magnetostriction induced mechanical displacement couples to an optical cavity via radiation pressure.
Zhi-Yuan Fan, Huai-Bing Zhu, Hao-Tian Li, Jie Li   +3 more
doaj   +1 more source

Cell Segmentation Beyond 2D—A Review of the State‐of‐the‐Art

Advanced Intelligent Discovery, EarlyView.
Cell segmentation underpins many biological image analysis tasks, yet most deep learning methods remain limited to 2D despite the inherently 3D nature of cellular processes. This review surveys segmentation approaches beyond 2D, comparing 2.5D and fully 3D methods, analyzing 31 models and 32 volumetric datasets, and introducing a unified reference ...
Fabian Schmeisser, Haseeb Muhammad, Junaid Younas, Gillian Lovell, Bianca Migliori, Andreas Dengel, Sheraz Ahmed   +6 more
wiley   +1 more source

Amplified squeezed states : analyzing loss and phase noise [PDF]

Phase-sensitive amplification of squeezed states is a technique to mitigate high detection loss, which is especially attractive at 2 mu m wavelengths.
Qin, J.,, Gould, D. W., McClelland, D. E.,, Qin, J., Kwan, K. M., McRae, T. G.,, Gould, D. W.,, Chua, S. S. Y.,, Adya, Vaishali B.,, Slagmolen, B. J.J., Junker, J.,, Slagmolen, B. J. J.,, McRae, T. G., Chua, S. S.Y., McClelland, D. E., Yap, M. J.,, Junker, J., Yap, M. J., Kwan, K. M.,, Adya, V. B.   +19 more
core   +1 more source