Zobrazeno 1 - 10
of 2 680
pro vyhledávání: '"Silva, P. O."'
We show that an anomalous pinch can occur in ultrarelativistic electron-electron or positron-positron beam interaction, caused by the combined interplay of collective beam motion (disruption) and strong-field quantum electrodynamics (SF-QED). The loc
Externí odkaz:
http://arxiv.org/abs/2412.09398
We show that circularly polarized lasers create plasmas with long-lasting ring-shaped weakly relativistic momentum distributions which, in the presence of an ambient magnetic field, are prone to the electron cyclotron maser instability. Theoretical r
Externí odkaz:
http://arxiv.org/abs/2412.06783
Dark matter has been theorized to be charged under its own "dark electromagnetism" (dark-EM). Under this hypothesis, dark matter can behave like a cold collisionless plasma of self-interacting dark matter particles, and exhibit plasma-like instabilit
Externí odkaz:
http://arxiv.org/abs/2411.15981
Autor:
Palafox, Sergio, Silva, Luis O.
This work tackles the problem of spectral characterization of a class of infinite matrices arising from the modelling of small oscillations in a system of interacting particles. The class of matrices under discussion corresponds to the infinite March
Externí odkaz:
http://arxiv.org/abs/2410.16782
Electronic and optical properties of a mesoscopic heterostructure of a two-dimensional quantum ring composed of Gallium Arsenide (GaAs) semiconductors are investigated. Using the confinement potential proposed by Tan-Inkson to describe the system und
Externí odkaz:
http://arxiv.org/abs/2410.11595
Relativistic plasmas in strong electromagnetic fields exhibit distinct properties compared to classical plasmas. In astrophysical environments, such as neutron stars, white dwarfs, AGNs, and shocks, relativistic plasmas are pervasive and are expected
Externí odkaz:
http://arxiv.org/abs/2409.18955
In this paper, we investigate the spacetime containing both small-scale structures (wiggles) and spatial dislocation, forming a wiggly cosmic dislocation. We study the combined effects of these features on the dynamics of massive and massless particl
Externí odkaz:
http://arxiv.org/abs/2409.12325
Autor:
Ewart, Robert J., Nastac, Michael L., Bilbao, Pablo J., Silva, Thales, Silva, Luís O., Schekochihin, Alexander A.
Generic equilibria are derived for turbulent relaxing plasmas via an entropy-maximization procedure that accounts for the short-time conservation of certain collisionless invariants. The conservation of these collisionless invariants endows the syste
Externí odkaz:
http://arxiv.org/abs/2409.01742
This study explores the linear and nonlinear optical absorption coefficients (OAC) and refractive index changes (RIC) in quantum dot and quantum antidot systems with a position-dependent variable effective mass. Significant contributions to both line
Externí odkaz:
http://arxiv.org/abs/2408.16746
Autor:
Silva, Hector O.
Neutron stars are powerful probes into the extremes of physics. In this chapter, we will discuss how observations of neutron stars, either in isolation or in binaries, can be leveraged to test general relativity and constrain competing theories of gr
Externí odkaz:
http://arxiv.org/abs/2407.17578