5 papers
Null integrability and photon phenomenology in the accelerated Schwarzschild black hole
Shokoufe Faraji, Eva Hackmann
Uniformly accelerated black holes provide a controlled setting to isolate how translatory acceleration and conical defects modify photon dynamics and observable optics. We analyse…
General orbital perturbation theory in Schwarzschild space-time
Oleksii Yanchyshen, Eva Hackmann, Claus Lämmerzahl
We derive general relativistic Gaussian equations for osculating elements for orbits under the influence of a perturbing force without any restrictions in an underlying Schwarzschi…
Twisted doughnuts: Thick disk torus around equatorial asymmetric black hole
Che-Yu Chen, Eva Hackmann, Audrey Trova
The Kerr black hole spacetime is symmetric with respect to a well-defined equatorial plane. When such a symmetry is broken, for instance, by some putative effects beyond general re…
Frequency shifts due to relativistic effects and retardation in continuous variable quantum key distribution
Emanuel Schlake, Jan P. Hackstein, Roy Barzel +3
Space-based quantum communication naturally involves satellites and ground stations exchanging optical signals at high altitudes and large relative velocities. Starting from genera…
General Relativity and Geodesy
Eva Hackmann, Moritz Huckfeldt, Claus Lämmerzahl +2
Mass redistribution on Earth due to dynamic processes such as ice melting and sea level rise leads to a changing gravitational field, observable by geodetic techniques. Monitoring…