Results 21 to 30 of about 145,201 (332)

Direct evidence that twisted flux tube emergence creates solar active regions

open access: yesNature Communications, 2021
Twisted flux tubes are prominent candidates for the progenitors of solar active regions. Here, the authors show a clear signature of the emergence of pre-twisted magnetic flux tubes using magnetic winding, which detects the emerging magnetic topology ...
D. MacTaggart   +4 more
doaj   +1 more source

On A. D. Sakharov’s Hypothesis of Cosmological Transitions with Changes in the Signature of the Metric

open access: yesUniverse, 2021
The paper discusses possible consequences of A. D. Sakharov’s hypothesis of cosmological transitions with changes in the signature of the metric, based on the path integral approach.
Tatyana P. Shestakova
doaj   +1 more source

Dynamic Modeling of Internet Traffic for Intrusion Detection

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
Computer network traffic is analyzed via mutual information techniques, implemented using linear and nonlinear canonical correlation analyses, with the specific objective of detecting UDP flooding attacks.
Stephan Bohacek   +2 more
doaj   +2 more sources

VBF Event Classification with Recurrent Neural Networks at ATLAS’s LHC Experiment

open access: yesApplied Sciences, 2023
A novel machine learning (ML) approach based on a recurrent neural network (RNN) for event topology identification in high energy physics (HEP) is presented.
Silvia Auricchio   +2 more
doaj   +1 more source

Bayesian Model Infers Drug Repurposing Candidates for Treatment of COVID-19

open access: yesApplied Sciences, 2021
The emergence of COVID-19 progressed into a global pandemic that has functionally put the world at a standstill and catapulted major healthcare systems into an overburdened state.
Michael A. Kiebish   +10 more
doaj   +1 more source

Signature of Topological Phases in Zitterbewegung [PDF]

open access: yesSPIN, 2016
We have studied the Zitterbewegung effect on an infinite two-dimensional sheet with honeycomb lattice. By tuning the perpendicular electric field and the magnetization of the sheet, it can enter different topological phases. We have shown that the phase and magnitude of Zitterbewegung effect, i.e., the jittering motion of electron wavepackets ...
Ghosh, Sumit, Manchon, Aurelien
openaire   +3 more sources

Phase Signature of Topological Transition in Josephson Junctions [PDF]

open access: yesPhysical Review Letters, 2021
Topological superconductivity holds promise for fault-tolerant quantum computing. While planar Josephson junctions are attractive candidates to realize this exotic state, direct phase-measurements as the fingerprint of the topological transition are missing. By embedding two gate-tunable Al/InAs Josephson junctions in a loop geometry, we measure a $ $-
Matthieu C. Dartiailh   +6 more
openaire   +3 more sources

Are There Universal Signatures of Topological Phases in High-Harmonic Generation? Probably Not.

open access: yesPhysical Review X, 2023
High harmonic generation (HHG) has developed in recent years as a promising tool for ultrafast materials spectroscopy. At the forefront of these advancements, several works proposed using HHG as an all-optical probe for topology of quantum matter by ...
Ofer Neufeld   +4 more
doaj   +1 more source

Robust Transport Signatures of Topological Superconductivity in Topological Insulator Nanowires [PDF]

open access: yesPhysical Review Letters, 2014
Finding a clear signature of topological superconductivity in transport experiments remains an outstanding challenge. In this work, we propose exploiting the unique properties of three-dimensional topological insulator nanowires to generate a normal-superconductor junction in the single-mode regime where an exactly quantized $2e^2/h$ zero-bias ...
de Juan, F., Ilan, R., Bardarson, J.
openaire   +4 more sources

Emotion recognition in talking-face videos using persistent entropy and neural networks

open access: yesElectronic Research Archive, 2022
The automatic recognition of a person's emotional state has become a very active research field that involves scientists specialized in different areas such as artificial intelligence, computer vision, or psychology, among others.
Eduardo Paluzo-Hidalgo   +2 more
doaj   +1 more source

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