Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Barroso, Vitor S."'
Autor:
Gregory, Sean M. D., Schiattarella, Silvia, Barroso, Vitor S., Kaiser, David I., Avgoustidis, Anastasios, Weinfurtner, Silke
Far-from-equilibrium phenomena unveil the intricate principles of complex systems, including snowflake growth and fluid turbulence, with broad applications ranging from foreign exchange trading to climate modeling. A recurring feature across these sy
Externí odkaz:
http://arxiv.org/abs/2410.08842
Autor:
Geelmuyden, August, Barroso, Vitor S., Ajithkumar, Sreelekshmi C., Kent, Anthony J., Weinfurtner, Silke
Digital holography (DH) has been widely used for imaging and characterization of micro and nanostructures in materials science and biology and has the potential to provide high-resolution, non-destructive measurements of fluid surfaces as well. Digit
Externí odkaz:
http://arxiv.org/abs/2306.08061
Analogue gravity offers an approach for testing the universality and robustness of quantum field theories in curved spacetimes and validating them using down-to-earth, laboratory-based experiments. Fluid interfaces are a promising framework for creat
Externí odkaz:
http://arxiv.org/abs/2305.00226
Autor:
Bunney, Cameron R. D., Barroso, Vitor S., Biermann, Steffen, Geelmuyden, August, Gooding, Cisco, Ithier, Grégoire, Rojas, Xavier, Louko, Jorma, Weinfurtner, Silke
Publikováno v:
New J. Phys. 26 065001 (2024)
An accelerated observer moving through empty space sees particles appearing and disappearing, while an observer with a constant velocity does not register any particles. This phenomenon, generally known as the Unruh effect, relies on an initial vacuu
Externí odkaz:
http://arxiv.org/abs/2302.12023
Autor:
Barroso, Vitor S., Geelmuyden, August, Fifer, Zack, Erne, Sebastian, Avgoustidis, Anastasios, Hill, Richard J. A., Weinfurtner, Silke
For the past two hundred years, parametric instabilities have been studied in various physical systems, such as fluids, mechanical devices and even inflationary cosmology. It was not until a few decades ago that this subharmonic unstable response aro
Externí odkaz:
http://arxiv.org/abs/2207.02199
Autor:
Pitelli, J. P. M., Barroso, Vitor S.
In a recent paper [J. P. M. Pitelli, Phys. Rev. D {\bf 99}, 108701 (2019)], one of us showed that the vacuum state associated to conformal fields on a Poicar\'e patch of anti-de Sitter spacetime is not $\text{AdS}$ invariant for fields satisfying non
Externí odkaz:
http://arxiv.org/abs/1908.11742
Publikováno v:
Phys. Rev. D 99, 125008 (2019)
Quantum field theory on anti-de Sitter spacetime requires the introduction of boundary conditions at its conformal boundary, due essentially to the absence of global hyperbolicity. Here we calculate the renormalized stress-energy tensor $T_{\mu\nu}$
Externí odkaz:
http://arxiv.org/abs/1904.10806
Autor:
Barroso, Vitor S., Pitelli, J. P. M.
Initial conditions given on a spacelike, static slice of a non-globally hyperbolic spacetime may not define the fates of classical and quantum fields uniquely. Such lack of global hyperbolicity is a well-known property of the anti-de Sitter solution
Externí odkaz:
http://arxiv.org/abs/1904.10920
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