Results 121 to 130 of about 454,681 (325)

Colossal Terahertz Emission with Ultrafast Tunability Based on Van der Waals Ferroelectric NbOI2

Advanced Optical Materials, EarlyView.
The widespread THz applications are hindered by the scarcity of efficient ultrafast THz sources with on‐demand fast modulation and easy on‐chip integration capability. Here the discovery of colossal THz emission is reported from a van der Waals (vdW) ferroelectric semiconductor NbOI2 and demonstrates the ultrafast coherent control of the THz emission ...
Sujan Subedi, Wenhao Liu, Wuzhang Fang, Carter Fox, Zixin Zhai, Fan Fei, Yuan Ping, Bing Lv, Jun Xiao   +8 more
wiley   +1 more source

High‐Fidelity Information Transmission Through the Turbulent Atmosphere Utilizing Partially Coherent Cylindrical Vector Beams

Advanced Photonics Research, EarlyView.
A novel free‐space optical communication protocol that combines the benefits of partially coherent light sources with the decoding capabilities of convolutional neural networks is proposed. This approach establishes a robust communication link that can withstand atmospheric turbulence.
Linxuan Yao, Hui Zhang, Yangsheng Yuan, Yaru Gao, Chunhao Liang, Sergey A. Ponomarenko, Yangjian Cai   +6 more
wiley   +1 more source

Biphoton Waveforms of Photon Pair from Velocity‐Selective Atoms in a Doppler‐Broadened Atomic Ensemble

Advanced Photonics Research, EarlyView.
Telecom‐band quantum light sources have significant practical applications in this domain. This study reports the high‐performance telecom‐wavelength biphoton generation from a hot vapor cell of 87Rb. For the first time, the beat phenomenon in the autocorrelation function of the signal photon with telecom wavelength due to the velocity‐selective ...
Hansol Jeong, Heewoo Kim, Danbi Kim, Han Seb Moon   +3 more
wiley   +1 more source

Floating Entanglement Witness Measure and Genetic Algorithm [PDF]

arXiv, 2007
In this paper based on the notion of entanglement witness, a new measure of entanglement called floating entanglement witness measure is introduced which satisfies some of the usual properties of a good entanglement measure. By exploiting genetic algorithm, we introduce a classical algorithm that computes floating entanglement witness measure.
arxiv  

Photochromic Organic–Inorganic Material for Focusable Adaptive Lenses Fabrication

Advanced Photonics Research, EarlyView.
This study investigates a zirconia‐based hybrid organic–inorganic material incorporating dithienylethene molecules for adaptive optics. It offers excellent photochromic properties, thermal stability, and adjustable thickness, enabling effective refractive index modulation.
Giorgia Franchin, Veronica Torresan, Alessandro Gandin, Rossella Castagna, Chiara Bertarelli, Stefano Bonora, Giovanna Brusatin   +6 more
wiley   +1 more source

Entanglement Hamiltonian and effective temperature of non-Hermitian quantum spin ladders

SciPost Physics Core
Quantum entanglement plays a crucial role not only in understanding Hermitian many-body systems but also in offering valuable insights into non-Hermitian quantum systems.
Pei-Yun Yang, Yu-Chin Tzeng
doaj   +1 more source

Tailoring Second Harmonic Generation via Strong Coupling in a One‐Dimensional Photonic Crystal Heterostructure

Advanced Photonics Research, EarlyView.
The strong coupling is investigated as an effective method to modulate the second‐harmonic generation (SHG) in the defect mode and Tamm plasmon resonances. Throughout the entire anticrossing Rabi splitting process induced by strong coupling, the difference in SHG efficiency between two resonances can be modulated by up to two orders of magnitude ...
Ying Zhu, Ruize Ma, Anlong Dong, Hangsheng Xu, Chunhua Wang, Meng Qin, Jianqiang Liu, Hongju Li   +7 more
wiley   +1 more source

Restriction on the local realism violation in three-qubit states and its relation with tripartite entanglement

Scientific Reports, 2018
Quantum entanglement and non-locality are two special aspects of quantum correlations. The relationship between multipartite entanglement and non-locality is at the root of the foundations of quantum mechanics but there is still no general quantitative ...
Artur Barasiński
doaj   +1 more source

Entanglement and quantum fluctuations [PDF]

arXiv, 2003
We discuss maximum entangled states of quantum systems in terms of quantum fluctuations of all essential measurements responsible for manifestation of entanglement. Namely, we consider maximum entanglement as a property of states, for which quantum fluctuations come to their extreme.
arxiv  

Polarization Management on Anisotropic Thin‐Film Lithium Niobate Platform

Advanced Photonics Research, EarlyView.
This review focuses on x‐cut thin‐film lithium niobate (TFLN), exploring strategies to mitigate anisotropy and mode hybridization. It covers polarization beam splitters, rotators, splitter‐rotators, polarizers, and polarization‐insensitive components. Key applications include polarization‐division multiplexing, polarization‐insensitive modulation, and ...
Kaixuan Chen, Youxin Liu, Xinke Xing, Haohua Wang, Tian Gao, Weilong Ma, Fansu Zhao, Lingfeng Wu, Changjian Guo, Liu Liu   +9 more
wiley   +1 more source