Results 11 to 20 of about 8,962,473 (314)
Full-frequency GW without frequency [PDF]
The Journal of Chemical Physics, 2021 Efficient computer implementations of the GW approximation must approximate a numerically challenging frequency integral; the integral can be performed analytically, but doing so leads to an expensive implementation whose computational cost scales as O(N6), where N is the size of the system. Here, we introduce a new formulation of the full-frequency GW
Sylvia J. Bintrim, Timothy C. Berkelbach
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Chaos: An Interdisciplinary Journal of Nonlinear Science, 2016 We study the dynamics of coupled phase oscillators on a two-dimensional Kuramoto lattice with periodic boundary conditions. For coupling strengths just below the transition to global phase-locking, we find localized spatiotemporal patterns that we call “frequency spirals.” These patterns cannot be seen under time averaging; they become visible only ...
Bertrand Ottino-Löffler +1 more
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IEEE Transactions on Power Systems, 2016 Science Foundation ...
Milano, Federico, Ortega, Alvaro
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Sensors, 2022 Magnetic coupling resonance wireless power transfer can efficiently provide energy to intracranial implants under safety constraints, and is the main way to power fully implantable brain–computer interface systems.
Haochuan Wang +6 more
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Publisher Correction: Chip-scale atomic diffractive optical elements
Nature Communications, 2019 An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Liron Stern +4 more
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Photonic Sensors, 2023 Photodetectors operating at the wavelength in the visible spectrum are key components in high-performance optoelectronic systems. In this work, massive nonlinearities in amorphous silicon p-i-n photodiodes enabled by the photogating are presented ...
Andreas Bablich +4 more
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FcaNet: Frequency Channel Attention Networks [PDF]
IEEE International Conference on Computer Vision, 2020 Attention mechanism, especially channel attention, has gained great success in the computer vision field. Many works focus on how to design efficient channel attention mechanisms while ignoring a fundamental problem, i.e., channel attention mechanism ...
Zequn Qin, Pengyi Zhang, Fei Wu, Xi Li
semanticscholar +1 more source
Chip-scale atomic diffractive optical elements
Nature Communications, 2019 Quantum coherence and the nonlinear properties of atoms are highly useful in optical devices. Here the authors show quantum-optic hybrid platforms in fully integrated chip-scale atomic diffractive optical elements by embedding hot atomic Rb vapor in ...
Liron Stern +4 more
doaj +1 more source
Efforts towards a low-temperature-sensitive physics package for vapor cell atomic clocks
Satellite Navigation, 2020 Strong environmental dependence is an intractable problem for vapor cell clocks, for which the high-temperature sensitivity of the physics package is considered one of the dominant reasons.
Qiang Hao +5 more
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Photonics, 2023 This study experimentally demonstrates two types of ultra-broadband metamaterial absorbers with high performance in the visible-to-near-infrared range by using different anti-reflection coatings (i.e., SiO2 and Si3N4) and a multi-subcell Ti-SiO2-Ti ...
Dongqing Wu +4 more
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