Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Robson, Charles W."'
In this work, we contribute the first visual open-source empirical study on human behaviour during the COVID-19 pandemic, in order to investigate how compliant a general population is to mask-wearing-related public-health policy. Object-detection-bas
Externí odkaz:
http://arxiv.org/abs/2311.13046
We study the implications of time-varying wave mechanics, and show how the standard wave equation is modified if the speed of a wave is not constant in time. In particular, waves which experience longitudinal acceleration are shown to have clear rela
Externí odkaz:
http://arxiv.org/abs/2304.08108
Autor:
Robson, Charles W., Ornigotti, Marco
The type D Kasner vacuum solution of general relativity is reviewed, highlighting the little-known, intriguing property that it can describe both an anisotropic cosmology and the spacetime deep within a black hole, these two descriptions linked by a
Externí odkaz:
http://arxiv.org/abs/2205.07768
Autor:
Robson, Charles W., Ornigotti, Marco
In this work, we present a new interpretation of the only static vacuum solution of Einstein's field equations with planar symmetry, the Taub solution. This solution is a member of the $AIII$ class of metrics, along with the type D Kasner solution. V
Externí odkaz:
http://arxiv.org/abs/2202.12681
Autor:
Robson, Charles W., Biancalana, Fabio
We investigate a novel mapping between solutions to several members of the Klein-Gordon family of equations and solutions to equations describing their reductions via the slowly varying envelope approximation. This mapping creates a link between the
Externí odkaz:
http://arxiv.org/abs/2105.04498
The path integral formulation of quantum mechanics, i.e., the idea that the evolution of a quantum system is determined as a sum over all the possible trajectories that would take the system from the initial to its final state of its dynamical evolut
Externí odkaz:
http://arxiv.org/abs/2105.00948
We consider the effect of orbital angular momentum (OAM) on localized waves in optical fibers using theory and numerical simulations, focusing on splash pulses and focus wave modes. For splash pulses, our results show that they may carry OAM only up
Externí odkaz:
http://arxiv.org/abs/2012.03609
Autor:
Robson, Charles W., Ornigotti, Marco
The interactions between copropagating ring-Airy beams in a (2+1)-dimensional Kerr medium are numerically investigated for the first time. It is shown that two overlapping ring-Airy beams in such a medium produce controllable regions of very low inte
Externí odkaz:
http://arxiv.org/abs/2011.13359
Autor:
Heluo, Yuxi, Robson, Charles W.
Publikováno v:
In Transportation Research Interdisciplinary Perspectives September 2023 21
Autor:
Robson, Charles W., Ornigotti, Marco
Based on an investigation into the near-horizon geometrical description of black hole spacetimes (the so-called "($r$,$t$) sector"), we find that the surface area of the event horizon of a black hole is mirrored in the area of a newly-defined surface
Externí odkaz:
http://arxiv.org/abs/1911.11723