1 citations · 2 across the 7 of their papers we have counts for
7 papers
Phase-Space Delaunay Tessellation Field Estimator
Job Feldbrugge
The reconstruction of density and velocity fields is of central importance to the interpretation of -body simulations. We propose a phase-space extension of the Delaunay tessell…
Crossing singularities in the saddle point approximation
Job Feldbrugge, Dylan L. Jow, Ue-Li Pen
We describe a new phenomenon in the study of the real-time path integral, where complex classical paths hit singularities of the potential and need to be analytically continued bey…
Complex classical paths in quantum reflections and tunneling
Job Feldbrugge, Dylan L. Jow, Ue-Li Pen
The real-time propagator of the symmetric Rosen-Morse, also known as the symmetric modified Pöschl-Teller, barrier is expressed in the Picard-Lefschetz path integral formalism usin…
Orthogonality relations for conical functions of imaginary order
Job Feldbrugge, Nynke M. D. Niezink
Orthogonality relations for conical or Mehler functions of imaginary order are derived and expressed in terms of the Dirac delta function. This work extends recently derived orthog…
Complex evaluation of angular power spectra: Going beyond the Limber approximation
Job Feldbrugge
Angular power spectra are central to the study of our Universe. In this paper, I develop a new method for the numeric evaluation and analytic estimation of the angular cross-power…
Statistics of tidal and deformation eigenvalue fields in the primordial Gaussian matter distribution: the two-dimensional case
Job Feldbrugge, Yihan Yan, Rien van de Weygaert
We study the statistical properties of the eigenvalues of the primordial tidal and deformation tensor for random Gaussian cosmic density fields. With the tidal and deformation tens…