Publications (34)
The importance of magnification effects in galaxy-galaxy lensing
Sandra Unruh, Peter Schneider, Stefan Hilbert +3
Magnification changes the observed number counts of galaxies on the sky. This biases the observed tangential shear profiles around galaxies, the so-called galaxy-galaxy lensing (GG…
Low dimensionality of the diamond surface conductivity
Moritz V. Hauf, Patrick Simon, Max Seifert +3
Undoped diamond, a remarkable bulk electrical insulator, exhibits a high surface conductivity in air when the surface is hydrogen-terminated. Although theoretical models have claim…
First lensing measurements of SZ-discovered clusters
Rachel N. McInnes, Felipe Menanteau, Alan F. Heavens +5
We present the first lensing mass measurements of Sunyaev-Zel'dovich (SZ) selected clusters. Using optical imaging from the Southern Cosmology Survey (SCS), we present weak lensing…
Influence of homo-buffer layer on stress control of sputtered (Ba0.45,Sr0.55)TiO3 thin films on Pt-Si
Y. K. Vayunandana Reddy, Guillaume Guegan, Mohamed Lamhamdi +2
To engineer strain relaxation of sputtered BST thin films on Pt-Si wafers, homo-buffer layer method was applied to eliminate Pt hillock formation. Thin BST homo-buffer layers were…
Scale dependence of galaxy biasing investigated by weak gravitational lensing: An assessment using semi-analytic galaxies and simulated lensing data
Patrick Simon, Stefan Hilbert
Galaxies are biased tracers of the matter density on cosmological scales. For future tests of galaxy models, we refine and assess a method to measure galaxy biasing as function of…
Protecting a diamond quantum memory by charge state control
Matthias Pfender, Nabeel Aslam, Patrick Simon +17
In recent years, solid-state spin systems have emerged as promising candidates for quantum information processing (QIP). Prominent examples are the Nitrogen-Vacancy (NV) center in…