Zobrazeno 1 - 10
of 189 037
pro vyhledávání: '"Dispersion Relation"'
Autor:
Jiang, Da-Shan
The low frequency vibrational anomaly known as Boson peak (BP) have been studied extensively in various disordered systems, however its origin and theoretical description are still under debate. In this work, as one of the simplest model for describi
Externí odkaz:
http://arxiv.org/abs/2412.14625
The Bernstein wave is a well-known electrostatic eigen-mode in magnetized plasmas, and it is of broad connection to multiple disciplines, such as controlled nuclear fusions and astrophysics. In this work, we extend the Bernstein mode from classical t
Externí odkaz:
http://arxiv.org/abs/2411.11489
The Rayleigh Taylor instability (RTI) occurs at the interface between two fluids of different densities, notably when a heavier fluid sits above a lighter one in an effective gravitational field. This instability is relevant to many astrophysical sys
Externí odkaz:
http://arxiv.org/abs/2411.03347
In this work, we present an evaluation of subleading effects in the hadronic light-by-light contribution to the anomalous magnetic moment of the muon. Using a recently derived optimized basis, we first study the matching of axial-vector contributions
Externí odkaz:
http://arxiv.org/abs/2412.00178
Autor:
Wang, Bao, Wei, Jun-Jie
Publikováno v:
Res. Notes AAS, 8, 222 (2024)
The dispersion measures of fast radio bursts have been identified as a powerful tool for testing the zero-mass hypothesis of the photon. The classical approach treats the massive photon-induced and plasma-induced time delays as two separate phenomena
Externí odkaz:
http://arxiv.org/abs/2409.04672
Autor:
Atthaphan, Ek-ong, Kaewsnod, Attaphon, Xu, Kai, Aung, Moh Moh, Sreethawong, Warintorn, Limphirat, Ayut, Yan, Yupeng
We explore the meson cloud contribution to nucleon electromagnetic form factors in dispersion relation approach. In our calculations, experimental data on transition amplitudes for pion-nucleon scatterings are taken directly as inputs, with the assum
Externí odkaz:
http://arxiv.org/abs/2409.17492
Autor:
Bonomi, Davide, Forini, Valentina
Starting from the Lorentzian inversion formula, we derive a dispersion relation which computes a four-point function in 1d CFTs as an integral over its double discontinuity. The crossing symmetric kernel of the integral is given explicitly for the ca
Externí odkaz:
http://arxiv.org/abs/2406.10220
Publikováno v:
Chinese Physics Letters 41, 111101 (2024)
We derive the discontinuities of banana integrals using the dispersion relation iteratively. We find a series of identities between the parameterized discontinuities of banana integrals (p-DOBIs). Similar to elliptic integrals, these identities enabl
Externí odkaz:
http://arxiv.org/abs/2405.19868
In this work we investigate the computation of dispersion relation (i.e., band functions) for three-dimensional photonic crystals, formulated as a parameterized Maxwell eigenvalue problem, using a novel hp-adaptive sampling algorithm. We develop an a
Externí odkaz:
http://arxiv.org/abs/2406.10523
Autor:
Klahr, Hubert
This paper discusses the Goldreich-Schubert-Fricke instability (GSF) and the convective overstability (COS) in the context of baroclinic thermal instabilities in rotating disks around young stars. The vertical shear instability (VSI) is a global exte
Externí odkaz:
http://arxiv.org/abs/2404.15933