69 citations · 251 across the 22 of their papers we have counts for
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Gravitational attraction of ultra-relativistic matter: A new testbed for modified gravity at the Large Hadron Collider
Christian Pfeifer, Dennis Rätzel, Daniel Braun
We derive the scalar-tensor modification of the gravitational field of an ultrarelativistic particle beam and its effect on a test particle that is used as sensor. To do so, we sol…
Non-linear media in weakly curved spacetime: optical solitons and probe pulses for gravimetry
Alessio Belenchia, Felix Spengler, Dennis Rätzel +1
That light propagating in a gravitational field gets frequency-shifted is one of the basic consequences of any metric theory of gravity rooted in the equivalence principle. At the…
Optical solitons in curved spacetime
Felix Spengler, Alessio Belenchia, Dennis Rätzel +1
Light propagation in curved spacetime is at the basis of some of the most stringent tests of Einstein's general relativity. At the same time, light propagation in media is at the b…
Influence of cosmological expansion in local experiments
Felix Spengler, Alessio Belenchia, Dennis Rätzel +1
Whether the cosmological expansion can influence the local dynamics, below the galaxy clusters scale, has been the subject of intense investigations in the past three decades. In t…
Perspectives of measuring gravitational effects of laser light and particle beams
Felix Spengler, Dennis Rätzel, Daniel Braun
We study possibilities of creation and detection of oscillating gravitational fields from lab-scale high energy, relativistic sources. The sources considered are high energy laser…
Analogue simulation of gravitational waves in a 3+1 dimensional Bose-Einstein condensate
Daniel Hartley, Tupac Bravo, Dennis Rätzel +2
The recent detections of gravitational waves (GWs) by the LIGO and Virgo collaborations have opened the field of GW astronomy, intensifying interest in GWs and other possible detec…
Frequency spectrum of an optical resonator in a curved spacetime
Dennis Rätzel, Fabienne Schneiter, Daniel Braun +4
The effect of gravity and proper acceleration on the frequency spectrum of an optical resonator - both rigid or deformable - is considered in the framework of general relativity. T…
Testing small scale gravitational wave detectors with dynamical mass distributions
Dennis Rätzel, Ivette Fuentes
The recent discovery of gravitational waves by the LIGO-Virgo collaboration created renewed interest in the investigation of alternative gravitational detector designs, such as sma…
Gravitational properties of light - The emission of counter-propagating laser pulses from an atom
Dennis Rätzel, Martin Wilkens, Ralf Menzel
The gravitational field of a laser pulse, although not detectable at the moment, comes with a peculiar feature which continues to attract attention; cause and effect propagate with…