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arXiv:gr-qc/0508013gr-qc

Anti-Gravitation

S. Hossenfelder

Early discovery. Linked by one identifiable commenter. This paper is outside the main ranking; a mention is not an endorsement.

Abstract

The possibility of a symmetry between gravitating and anti-gravitating particles is examined. The properties of the anti-gravitating fields are defined by their behavior under general diffeomorphisms. The equations of motion and the conserved canonical currents are derived, and it is shown that the kinetic energy remains positive whereas the new fields can make a negative contribution to the source term of Einstein's field equations. The interaction between the two types of fields is naturally suppressed by the Planck scale.

arXiv comments
replaced with published version
Journal reference
Phys.Lett. B636 (2006) 119-125
DOI
doi:10.1016/j.physletb.2006.03.038
Subjects
gr-qcGeneral Relativity and Quantum Cosmology hep-thHigh Energy Physics, Theory

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Linked by 1 identifiable commenter in 3 comments across 3 threads, from Mar 2018 to Nov 2022.

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Discussed in comments3 threads

  1. Physical Warp Drives (2021) 1 comment

    • Unfortunately, different quantum spin orientations don't appear to evade the weak equivalence principle. Dropping Bose-Einstein condensates in vacuum drop towers is a popular experiment. An example, "Tests of the Universality of Free Fall with Atoms in Different Spin…

      raattgiftView on HNParent context

  2. New antimatter gravity experiments begin at CERN 1 comment

    • You asked an interesting question: If (arguendo) anti-matter anti-gravitates, then > Does it not then make sense that in-falling anti-matter would have an evaporating effect Yes, kinda. More precisely, it would depend on how anti-gravitation works exactly, i.e., how anti-matter…

      raattgiftView on HNParent context

  3. Unprecedentedly wide and sharp dark matter map 1 comment

    • Sabine Hossenfelder has a slightly tongue-in-cheek FAQ on anti-gravitation, and from time to time blogs about it. https://fias.uni-frankfurt.de/~hossi/Physics/anti-gravity.ht... You might find that interesting. The key constraints come from General Relativity; the successes of…

      raattgiftView on HNParent context

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