421 citations · 5.4k across the 117 of their papers we have counts for
7 papers · 1 filter
Physical dimensions/units and universal constants: their invariance in special and general relativity
Friedrich W. Hehl, Claus Lämmerzahl
The theory of physical dimensions and units in physics is outlined. This includes a discussion of the universal applicability and superiority of quantity equations. The Internation…
Space-borne Bose-Einstein condensation for precision interferometry
Dennis Becker, Maike D. Lachmann, Stephan T. Seidel +32
Space offers virtually unlimited free-fall in gravity. Bose-Einstein condensation (BEC) enables ineffable low kinetic energies corresponding to pico- or even femtokelvins. The comb…
Effects of non-linear vacuum electrodynamics on the polarization plane of light
Volker Perlick, Claus Lämmerzahl, Alfredo Macias
We consider the Pleba{ń}ski class of nonlinear theories of vacuum electrodynamics, i.e., Lagrangian theories that are Lorentz invariant and gauge invariant. Our main goal is to der…
Gravitational clock compass in General Relativity
Dirk Puetzfeld, Yuri N. Obukhov, Claus Lämmerzahl
We show how a suitably prepared set of clocks can be used to determine all components of the gravitational field in General Relativity. We call such an experimental setup a clock c…
Charged fluid structures around a rotating compact object with a magnetic dipole field
Kris Schroven, Audrey Trova, Eva Hackmann +1
We study stationary, electrically charged fluid structures encircling a rotating compact object with a dipole magnetic field oriented along the rotation axis. This situation is des…
Finsler geometry as a model for relativistic gravity
Claus Lämmerzahl, Volker Perlick
We give an overview on the status and on the perspectives of Finsler gravity, beginning with a discussion of various motivations for considering a Finslerian modification of Genera…