40 citations
5 papers
Automated Chirp Detection with Diffusion Entropy: Application to Infrasound from Sprites
M. Ignaccolo, T. Farges, E. Blanc +1
We study the performance of three different methods to automatically detect a chirp in background noise. (1) The standard deviation detector uses the computation of the signal to n…
The multifractal spectrum of Brownian intersection local times
Achim Klenke, Peter Morters
Let \ell be the projected intersection local time of two independent Brownian paths in R^d for d=2,3. We determine the lower tail of the random variable \ell(U), where U is the uni…
A unifying class of Skorokhod embeddings: connecting the Azema-Yor and Vallois embeddings
A. M. G. Cox, D. G. Hobson
In this paper we consider the Skorokhod embedding problem in Brownian motion. In particular, we give a solution based on the local time at zero of a variably skewed Brownian motion…
Quantum lattice solitons in ultracold bosons near Feshbach resonance
K. V. Krutitsky, D. V. Skryabin
Quantum lattice solitons in a system of two ultracold bosons near Feshbach resonance are investigated. It is shown that their binding energy, effective mass, and spatial width, can…
PP-waves with torsion and metric-affine gravity
Vedad Pasic, Dmitri Vassiliev
A classical pp-wave is a 4-dimensional Lorentzian spacetime which admits a nonvanishing parallel spinor field; here the connection is assumed to be Levi-Civita. We generalise this…