Results 11 to 20 of about 23,183 (245)

Spectroscopy of two-dimensional interacting lattice electrons using symmetry-aware neural backflow transformations [PDF]

open access: yesCommunications Physics
Neural networks have shown to be a powerful tool to represent the ground state of quantum many-body systems, including fermionic systems. However, efficiently integrating lattice symmetries into neural representations remains a significant challenge.
Imelda Romero   +2 more
doaj   +2 more sources

Investigation of the influence of amplitude spiral zone plate parameters on produced energy backflow [PDF]

open access: yesКомпьютерная оптика, 2019
Investigation of the influence of parameters of silver, aluminum, gold, and chromium spiral zone plates on the longitudinal component of Umov-Pointing vector in produced optical vortices by using the frequency-dependent finite-difference time-domain ...
Elena Kozlova
doaj   +3 more sources

Analysis and Mitigation Strategies of Energy Backflow in an IPMSM Drive System With a Small DC‐Link Capacitor

open access: yesIET Electric Power Applications
The energy backflow phenomenon is unavoidable in small dc‐link capacitor‐based PMSM drive systems, which is first identified and comprehensively analysed in this paper.
Jun Yan   +5 more
doaj   +3 more sources

An Intelligent Floor Drain System for Self-Powered Disinfection via Low-Velocity Wastewater Energy Harvesting [PDF]

open access: yesResearch
Rapid urbanization intensifies hygiene and sustainability challenges in drainage systems, where conventional floor drains suffer from odor backflow, bacterial growth, and pathogen transmission.
Zhijie Huang   +5 more
doaj   +2 more sources

Energy backflow in unidirectional spatiotemporally localized wave packets

open access: yesPhysical Review A, 2023
10 pages, 8 figures. In comparison with v1, some refs. to arXiv have been updated by journal ones, some paragraphs in Introduction revised and a remark about possible experimental verification added to ...
Ioannis Besieris, Peeter Saari
openaire   +2 more sources

Focusing a second-order cylindrical vector beam with a gradient index Mikaelian lens [PDF]

open access: yesКомпьютерная оптика, 2020
In this paper, we numerically simulate the focusing of a second-order cylindrical vector beam with a gradient index Mikaelian lens. It is shown that the lens forms a region of the reverse energy flow near its output surface.
Sergey Stafeev   +2 more
doaj   +1 more source

Backflow Transformation for A=3 Nuclei with Artificial Neural Networks

open access: yesYuanzineng kexue jishu, 2023
A novel variational wave function defined as a Jastrow factor multiplying a backflow transformed Slater determinant was developed for A=3 nuclei. The Jastrow factor and backflow transformation were represented by artificial neural networks.
YANG Yilong, ZHAO Pengwei
doaj   +1 more source

Energy backflow and non-Markovian dynamics [PDF]

open access: yesPhysical Review A, 2016
11 pages, 5 figures; published ...
G. Guarnieri, C. Uchiyama, B. Vacchini
openaire   +3 more sources

Ultrashort Laser Pulse Focusing by Amplitude and Phase Zone Plates

open access: yesPhotonics, 2022
In this paper, using the frequency-dependent finite-difference time-domain method, a femtosecond cylindrical vector beam of second-order focusing binary zone plates (BZP) is investigated.
Elena Kozlova, Victor Kotlyar
doaj   +1 more source

Energy backflow in strongly coupled non-Markovian continuous-variable systems [PDF]

open access: yesPhysical Review A, 2016
By employing the full counting statistics formalism, we characterize the first moment of energy that is exchanged during a generally non-Markovian evolution in non-driven continuous variables systems. In particular, we focus on the evaluation of the energy flowing back from the environment into the open quantum system.
Guarnieri, G.   +5 more
openaire   +7 more sources

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