Zobrazeno 1 - 10
of 788
pro vyhledávání: '"Pontin, P. A."'
Fast-mode magnetohydrodynamic (MHD) waves in the solar corona are often known to be produced by solar flares and eruptive prominences. We here simulate the effect of the interaction of an external perturbation on a magnetic null in the solar corona w
Externí odkaz:
http://arxiv.org/abs/2411.02180
Autor:
Priest, Eric R., Pontin, David I.
Magnetic reconnection before flux cancellation in the solar photosphere when two opposite-polarity photospheric magnetic fragments are approaching one another is usually modelled by assuming that a small so-called "floating current sheet" forms about
Externí odkaz:
http://arxiv.org/abs/2410.11204
Physical insight into plasma evolution in the magnetohydrodynamic (MHD) limit can be revealed by decomposing the evolution according to the characteristic modes of the system. In this paper we explore aspects of the eigenenergy decomposition method (
Externí odkaz:
http://arxiv.org/abs/2410.05676
In recent years, levitated optomechanics has delivered on the promise of reaching the motional quantum ground state. An important next milestone of the field would be the generation of mechanical entanglement. An ideal candidate is the two-dimensiona
Externí odkaz:
http://arxiv.org/abs/2409.04863
Levitated optomechanics is entering the multiparticle regime, paving the way for the use of arrays of strongly coupled massive oscillators to explore complex interacting quantum systems. Here, we demonstrate the trapping of two nanospheres inside a d
Externí odkaz:
http://arxiv.org/abs/2408.02597
Three-dimensional (3D) magnetic nulls are abundant in the solar atmosphere, as been firmly established through contemporary observations. They are established to be important magnetic structures in, for example, jets and circular ribbon flares. While
Externí odkaz:
http://arxiv.org/abs/2406.06328
Three-dimensional magnetic nulls are the points where magnetic field vanishes and are preferential sites for magnetic reconnection: a process which converts magnetic energy into heat and accelerates charged particles along with a rearrangement of mag
Externí odkaz:
http://arxiv.org/abs/2404.12034
In this paper we introduce a new method for exact decomposition of propagating, nonlinear magnetohydrodynamic (MHD) disturbances into their component eigenenergies associated with the familiar slow, Alfv\'en, and fast wave eigenmodes, and the entropy
Externí odkaz:
http://arxiv.org/abs/2402.05327
Autor:
Kilian, Eva, Rademacher, Markus, Gosling, Jonathan M. H., Iacoponi, Julian H., Alder, Fiona, Toroš, Marko, Pontin, Antonio, Ghag, Chamkaur, Bose, Sougato, Monteiro, Tania S., Barker, P. F.
Publikováno v:
AVS Quantum Sci. 6, 030503 (2024)
Motivated by the current interest in employing quantum sensors on Earth and in space to conduct searches for new physics, we provide a perspective on the suitability of large-mass levitated optomechanical systems for observing dark matter signatures.
Externí odkaz:
http://arxiv.org/abs/2401.17990
Publikováno v:
The Astrophysical Journal, 960:51 (19pp), 2024 January 1
In this paper we propose that flux cancellation on small granular scales ($\lesssim 1000$ km) ubiquitously drives reconnection at a multitude of sites in the low solar atmosphere, contributing to chromospheric/coronal heating and the generation of th
Externí odkaz:
http://arxiv.org/abs/2401.11643