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Paper   IPM / Astronomy / 18085
School of Astronomy
  Title:   On the gravitational hysteresis in the kinetic theory
  Author(s): 
1.  R. Moti
2.  A. Shojai
  Status:   Published
  Journal: Journal of Cosmology and Astroparticle Physics
  Vol.:  2024
  Year:  2024
  Supported by:  IPM
  Abstract:
General theory of relativity is non--linear in nature and therefore can result in hysteresis-like effects and cause systems to remember the footprint of the gravitational field. Here we have investigated this effect using the Kinetic theory in curved spacetime. It is shown that the entropy rate experiences this hysteresis behavior. The effect is then considered for some special spacetimes, including Schwarzschild black hole, Friedmann--Lemaître--Robertson--Walker cosmological solution, and the flat Minkowski spacetime perturbed by a gravitational wave pulse. It is shown that there is some hysteresis effect for the entropy rate.

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