Results 81 to 90 of about 96,212 (277)

Anisotropy of Second‐Harmonic Generation in SnSe Flakes with Ferroelectric Stacking

Advanced Photonics Research, EarlyView.
Giant second‐harmonic generation (SHG) susceptibility, on the order of 1000 pm V−1, in SnSe with ferroelectric stacking is demonstrated by theoretical and experimental methods. SHG microscopy is utilized to study few‐layer ferroelectric SnSe flakes on mica substrates. Stripe‐like features in SHG mapping indicate ferroelectric domains. Strong wavelength‐
Li‐Tien Huang, Redhwan Moqbel, Chi Chen, Ming‐Hao Lee, Chi‐Cheng Lee, Nannan Mao, Tianyi Zhang, Yunyue Zhu, Jing Kong, Kung‐Hsuan Lin   +9 more
wiley   +1 more source

Topological Berry Antenna on a Silicon Chip for Terahertz Wireless Communication

Advanced Photonics Research, EarlyView.
The on‐chip topological Berry antenna for 6G to Xth‐generation wireless communication is designed via integrating various Berry curvatures for an enhanced antenna aperture and radiation gain. This THz antenna has demonstrated a maximum gain of 17 dBi and chip‐to‐chip wireless communications at 20 Gbps over a distance of 15 cm.
Sonu Kumar, Ridong Jia, Yi Ji Tan, Thomas Caiwei Tan, Pascal Szriftgiser, G. Arun Kumar, Guillaume Ducournau, Arokiaswami Alphones, Ranjan Singh   +8 more
wiley   +1 more source

Non-classical correlations beyond Bell’s inequality violation in qubit-pairs with an intrinsic noise

Results in Physics, 2019
In this paper, we analytically explore two qubits interacting with a coherent harmonic oscillator field under intrinsic noise. The interaction of the uncorrelated two qubits with a harmonic oscillator initially in the superposition of coherent states ...
A.-B. A. Mohamed, H. Eleuch
doaj   +1 more source

Transitionless quantum drivings for the harmonic oscillator

, 2009
Two methods to change a quantum harmonic oscillator frequency without transitions in a finite time are described and compared. The first method, a transitionless-tracking algorithm, makes use of a generalized harmonic oscillator and a non-local potential.
A Ruschhaupt, Barnett A M, Berry M V, Berry M V, Bize S, I Lizuain, J G Muga, Muga J G, Orszag M, Rezek Y, S Ibáñez, Tuchman A K, X Chen   +12 more
core   +1 more source

Quantum harmonic oscillators and thermalization

, 2021
We study a quantum harmonic oscillator undergoing thermalization. To describe the thermalization process, we generalize the Ermakov-Lewis-Riesenfeld (ELR) invariant method for the oscillator. After imposing appropriate conditions on the thermalization process, we introduce an ansatz equation that describes the time evolution effectively.
Kim, Hyeong-Chan, Lee, Youngone
openaire   +2 more sources

Nanomaterial‐Based Optical Biosensors for SARS‐CoV‐2 Detection: A Retrospective of the Pandemic

Advanced Sensor Research, EarlyView.
This review discusses nanomaterial‐based optical biosensors developed for or adapted to the detection of severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2). It concludes by providing a perspective on how lessons learned during the coronavirus disease of 2019 (COVID‐19) pandemic may be applied for future research on nanomaterial‐based ...
Flavie Martin, Scott G. Harroun, Michel Meunier   +2 more
wiley   +1 more source

MQHOA algorithm with energy level stabilizing process

Tongxin xuebao, 2016
An improved multi-scale quantum harmonic oscillator algorithm (MQHOA) with energy level stabilizing process was proposed analogizing to quantum harmonic oscillator's wave function.
Peng WANG, Yan HUANG
doaj   +2 more sources

Direct Observation of Suppressed Optical–Acoustic Phonon Energy Coupling in Supported SWCNT at Cryogenic Temperatures

Advanced Science, EarlyView.
This study quantifies the temperature‐dependent optical–acoustic phonon coupling factor (GOA) in supported single‐walled carbon nanotubes, revealing significant suppression at low temperatures. At high temperatures, GOA increases monotonically and is attributed to intensified anharmonic phonon interactions. This research offers key insights into phonon
Ibrahim Al Keyyam, Yu Hua, Baini Li, Tianyu Wang, Cheng Deng, Xinwei Wang   +5 more
wiley   +1 more source

Solution of the quantum harmonic oscillator plus a delta-function potential at the origin: The oddness of its even-parity solutions

, 2011
We derive the energy levels associated with the even-parity wave functions of the harmonic oscillator with an additional delta-function potential at the origin.
Peres, N. M. R., Viana-Gomes, J.
core   +1 more source

Machine Learning for Organic Fluorescent Materials

Aggregate, EarlyView.
Organic fluorescent materials (OFMs) have demonstrated significant potential in diverse applications. Conventional approaches for studying OFMs face significant limitations in fluorescence spectroscopy and computational methods. Machine learning (ML) has revolutionized materials chemistry, offering superior predictive accuracy and efficiency over ...
Jiamin Zhong, Wei Zhu, Shoutao Shen, Nan Zhou, Meiyang Xi, Kui Du, Dong Wang, Ben Zhong Tang   +7 more
wiley   +1 more source