Results 51 to 60 of about 251 (163)

Quantum annealing of an ising spin-glass by Green's function Monte Carlo

, 2007
We present an implementation of quantum annealing (QA) via lattice Green's function Monte Carlo (GFMC), focusing on its application to the Ising spin glass in transverse field.
Santoro, Giuseppe Ernesto, Santoro, Giuseppe E., Giuseppe E. Santoro, Stella, Lorenzo, Stella L   +4 more
core   +1 more source

In-plane anisotropic optical and mechanical properties of two-dimensional MoO3

npj 2D Materials and Applications, 2021
Molybdenum trioxide (MoO3) in-plane anisotropy has increasingly attracted the attention of the scientific community in the last few years. Many of the observed in-plane anisotropic properties stem from the anisotropic refractive index and elastic ...
Sergio Puebla, Roberto D’Agosta, Gabriel Sanchez-Santolino, Riccardo Frisenda, Carmen Munuera, Andres Castellanos-Gomez   +5 more
doaj   +1 more source

Tuning the Mutual Synchronization of Electrically Coupled Spin‐Torque Oscillators by Selecting the Vortex Dynamic Regime

Advanced Electronic Materials, Volume 11, Issue 9, June 2025.
The synchronization ability of vortex spin‐torque nano‐oscillators is examined across three dynamical regimes: the gyrotropic mode, the dynamic C‐state, and a transition regime. The transition regime exhibits the strongest synchronization ability, and it can be driven into a dynamic state with no ability to synchronize (dynamic C‐state) by slightly ...
Miguel Romera, Philippe Talatchian, Steffen Wittrock, Romain Lebrun, Karla J. Merazzo, Paolo Bortolotti, Laurent Vila, Ricardo Ferreira, Marie Claire Cyrille, Ursula Ebels, Vincent Cros, Julie Grollier   +11 more
wiley   +1 more source

The current landscape fire management in Ukraine and strategy for its improvement

Environmental & Socio-economic Studies, 2021
Recurrent wildfires in Ukraine exert severe impacts on the environment, human health and security as well as damage to private and public assets. From 2007 to 2020, the frequency of large wildfires has increased and reached a level that has not occurred ...
Soshenskyi Oleksandr, Zibtsev Sergiy, Gumeniuk Vasyl, Goldammer Johann Georg, Vasylyshyn Roman, Blyshchyk Volodymyr   +5 more
doaj   +1 more source

Increasing Fire Weather Season Overlap Between North America and Australia Challenges Firefighting Cooperation

Earth's Future, Volume 13, Issue 4, April 2025.
Abstract The USA, Canada and Australia are members of an international partnership that shares firefighting resources, including equipment and personnel. This partnership is effective because fire risk between Australia and North America is historically asynchronous. However, climate change is causing longer fire seasons in both regions, increasing the
Doug Richardson, Andreia F. S. Ribeiro, Fulden Batibeniz, Yann Quilcaille, Andrea S. Taschetto, Andrew J. Pitman, Jakob Zscheischler   +6 more
wiley   +1 more source

Per‐Unit Modeling Standards for Simplified Calculation in Grid‐Forming Converter Systems

Electronics Letters, Volume 61, Issue 1, January/December 2025.
The topology and control scheme of GFMC systems. ABSTRACT This letter proposes a per‐unit modeling standard (PUMS) for simplified calculations in grid‐forming converter (GFMC) systems, which can improve and simplify the modeling process. The proposed PUMS can solve the bottlenecks and difficulties of calculation caused by the upper limits of ...
Mufan Wang, Fan Li, Shuyi Shen, Xiahui Zhang, Zhiheng Shen, Xinhua Xiong, Chang Li   +6 more
wiley   +1 more source

Induced Ti magnetization at La0.7Sr0.3MnO3 and BaTiO3 interfaces

APL Materials, 2016
In artificial multiferroics hybrids consisting of ferromagnetic La0.7Sr0.3MnO3 (LSMO) and ferroelectric BaTiO3 epitaxial layers, net Ti moments are found from polarized resonant soft x-ray reflectivity and absorption. The Ti dichroic reflectivity follows
Yaohua Liu, J. Tornos, S. G. E. te Velthuis, J. W. Freeland, H. Zhou, P. Steadman, P. Bencok, C. Leon, J. Santamaria   +8 more
doaj   +1 more source

Strong Electrostatic Control of Excitonic Features in MoS2 by a Free‐Standing Ultrahigh‐κ Ferroelectric Perovskite

Advanced Functional Materials, Volume 34, Issue 52, December 23, 2024.
This work demonstrates the electrostatic control of photoluminescence in monolayer MoS2 using free‐standing BaTiO3 (BTO) at room temperature. BTO enables highly tunable exciton emission with minimal gate voltage. It induces large peak emission shifts and tunable A trion binding energy.
Thomas Pucher, Sergio Puebla, Victor Zamora, Estrella Sánchez Viso, Victor Rouco, Carlos Leon, Mar Garcia‐Hernandez, Jacobo Santamaria, Carmen Munuera, Andres Castellanos‐Gomez   +9 more
wiley   +1 more source

An improved grid-forming control method with adaptive virtual impedance combining current limitation and transient stability improvement

International Journal of Electrical Power & Energy Systems
The virtual impedance (VI) control method is widely used to limit fault current for grid-forming converter (GFMC). However, in this article, it is found that the VI deteriorates the transient synchronization stability of the GFMC under grid faults.
Xiaoping Zhou, Lei Zhang, Hanting Peng, Lerong Hong, Qianming Xu, Zhen Zhang, Jiakun Shao, Jianchao Ma, Yizhen Hu   +8 more
doaj   +1 more source

Quantum Monte Carlo Calculations of Scattering [PDF]

, 2023
A paramount goal in nuclear physics is to unify ab-initio treatments of bound and unboundstates. The position-space quantum Monte Carlo (QMC) methods have a long history of successful bound-state calculations in light systems but have seen minimal ...
Flores, Abraham R.
core