Results 1 to 10 of about 21,769 (265)
Quantum angular momentum diffusion of rigid bodies [PDF]
New Journal of Physics, 2017 We show how to describe the diffusion of the quantized angular momentum vector of an arbitrarily shaped rigid rotor as induced by its collisional interaction with an environment. We present the general form of the Lindblad-type master equation and relate
Birthe Papendell +2 more
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Study of Momentum Diffusion with the Effect of Adiabatic Focusing [PDF]
The Astrophysical Journal Supplement Series, 2021 Abstract The momentum diffusion of charged energetic particles is an important mechanism of the transport process in astrophysics, the physics of fusion devices, and laboratory plasmas. In addition to the momentum diffusion term for a uniform field, we obtain an additional momentum diffusion term due to the focusing effect of the large ...
J. F. Wang, G. Qin
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Heavy quark dynamics in a strongly magnetized medium [PDF]
EPJ Web of Conferences, 2022 We present a calculation of the heavy quark momentum diffusion coefficients in a strongly magnetized medium, within the Lowest Landau Level (LLL) approximation.
Bandyopadhyay Aritra +2 more
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A Dynamic Mixed Model for General Circulation Models
Meteorologische Zeitschrift, 2023 An extension of the dynamic Smgarorinsky model (DSM) is presented. In the so-called dynamic mixed model (DMM), the Leonard stress (i.e., the resolved part of the Reynolds stress) is no longer parameterized in the test filter range by the Smagorinsky ...
Urs Schaefer-Rolffs
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Diffusion Sampling with Momentum for Mitigating Divergence Artifacts
CoRR, 2023 Project page: https://github.com/sWizad/momentum ...
Suttisak Wizadwongsa +4 more
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Boosting Diffusion Models with an Adaptive Momentum Sampler
CoRR, 2023 Diffusion probabilistic models (DPMs) have been shown to generate high-quality images without the need for delicate adversarial training. However, the current sampling process in DPMs is prone to violent shaking. In this paper, we present a novel reverse sampler for DPMs inspired by the widely-used Adam optimizer.
Xiyu Wang +3 more
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Application of transient transport analysis method for modulation experiment
AIP Advances, 2021 A transient TRansport Analysis method for Modulation (t-TRAM) has been developed. This method consists of two methods. One is an instantaneous modulation analysis method using the Hilbert transform (HT) with the analytical mode decomposition (AMD).
Y. Ohtani +3 more
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The dynamics of the Snowball Earth Hadley circulation for off-equatorial and seasonally varying insolation [PDF]
Earth System Dynamics, 2013 I study the Hadley circulation of a completely ice-covered Snowball Earth through simulations with a comprehensive atmosphere general circulation model.
A. Voigt
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He jishu, 2021 BackgroundTokamak is a possible implementation of controlled nuclear fusion whilst the particle transportation plays an important role in maintaining the progress of nuclear fusion reactions.PurposeThis study aims to investigate the effects of ripple ...
LIU Jin +4 more
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Heat transfer control using a thermal analogue of coherent perfect absorption
Nature Communications, 2022 A thermal analogue of coherent perfect absorption would allow to control heat transfer using heat, but the lack of momentum propagation in a thermal field seems to prevent any role for coherence.
Ying Li +7 more
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