316 citations · 844 across the 37 of their papers we have counts for
17 papers · 1 filter
Gravitational Memory: an approximate description
Q. -L. Zhao, P. -M. Zhang, M. Elbistan +2
Plane gravitational waves play a role both in relativistic and in non-relativisitic physics, highlighted by two different mass parameters. The large-distance behaviour of a sandwic…
Memory Effect for deformed gravitational waves
P. -M. Zhang, M. Elbistan, P. A. Horvathy
Deformations of sandwich gravitational waves are considered. Squeezing a wave with pure displacement (DM) parameters to an impulsive wave, the DM property is lost, leaving us with…
Approximate Models for Gravitational Memory
Q-L Zhao, P. -M. Zhang, M. Elbistan +1
The large-distance approximation of a sandwich gravitational wave by a continuous but not necessarily smooth profile provides us with an approximate analytic description of particl…
Flyby-induced displacement: analytic solution
P. -M. Zhang, Z. K. Silagadze, P. A. Horvathy
The motion of particles hit by a burst of gravitational waves generated by flyby admits, for the derivative-of-the-Gaussian profile, only a numerical description. The profile can h…
Gravitational wave memory: further examples
P. -M. Zhang, Q. -L. Zhao, M. Elbistan +1
Ehlers and Kundt [1] argued in favor of the velocity effect: particles initally at rest hit by a burst of gravitational waves should fly apart with constant velocity after the wave…
Displacement memory for flyby
P. -M. Zhang, Q. -L. Zhao, J. Balog +1
Zel'dovich and Polnarev, in their seminal paper [1] suggested that a gravitational wave generated by flyby would merely displace the particles. We confirm their prediction numerica…
Displacement within velocity effect in gravitational wave memory
P. -M. Zhang, P. A. Horvathy
Particles initially at rest hit by a passing sandwich gravitational wave exhibit, in general, thevelocity memory effect (VM): they fly apart with constant velocity. For specific va…
Conformally related vacuum gravitational waves, and their symmetries
Q. L. Zhao, P. M. Zhang, P. A. Horvathy
A special conformal transformation which carries a vacuum gravitational wave into another vacuum one is built by using Möbius-redefined time. It can either transform a globally def…
Memory Effect and Carroll Symmetry: 50 years later
M. Elbistan, P. -M. Zhang, P. A. Horvathy
Particles at rest before the arrival of a burst of gravitational wave move, after the wave has passed, with constant velocity along diverging geodesics. As recognized by Souriau 50…
MultiCarroll dynamics
P. -M. Zhang, H-X. Zeng, P. A. Horvathy
Unlike a single Carroll particle, a multiparticle Carroll system can move under suitable conditions, as we demonstrate it explicitly for two particles with a momentum-dependent int…
Anyonic spin-Hall effect on the Black Hole horizon
Loic Marsot, Peng-Ming Zhang, Peter Horvathy
Using the fact that the horizon of black holes is a Carroll manifold, we show that an ``exotic photon'' i.e. a particle without mass and charge but with anyonic spin, magnetic mome…
Gravitational Waves and Conformal Time Transformations
P. -M. Zhang, Q. -L. Zhao, P. A. Horvathy
Recent interest in the "memory effect" prompted us to revisit the relation of gravitational aves and oscillators. 50 years ago Niederer [1] found that an isotropic harmonic oscilla…
Geodesic motion in Bogoslovsky-Finsler Spacetimes
M. Elbistan, P. -M. Zhang, N. Dimakis +2
We study the free motion of a massive particle moving in the background of a Finslerian deformation of a plane gravitational wave in Einstein's General Relativity. The deformation…
Sturm-Liouville and Carroll: at the heart of the Memory Effect
P. -M. Zhang, M. Elbistan, G. W. Gibbons +1
For a plane gravitational wave whose profile is given, in Brinkmann coordinates, by a symmetric traceless matrix , the matrix Sturm-Liouville equation $\ddot{P}=KP…
The Memory Effect for Plane Gravitational Waves
P. M. Zhang, C. Duval, G. W. Gibbons +1
We give an account of the gravitational memory effect in the presence of the exact plane wave solution of Einstein's vacuum equations. This allows an elementary but exact descripti…
Carroll symmetry of plane gravitational waves
C. Duval, G. W. Gibbons, P. A. Horvathy +1
The well-known 5-parameter isometry group of plane gravitational waves in dimensions is identified as Levy-Leblond's Carroll group in dimensions with no rotations. Our cl…
Carroll versus Newton and Galilei: two dual non-Einsteinian concepts of time
C. Duval, G. W. Gibbons, P. A. Horvathy +1
The Carroll group was originally introduced by Levy-Leblond [1] by considering the limit of the Poincaré group as . In this paper an alternative definition, based on the geo…