Gravitational decoherence, alternative quantum theories and semiclassical gravity

2014/02/26 by B. L. Hu, B L Hu · 1 citation
Mathematics · Physics and Astronomy · #Algebraic and Geometric Analysis #Entropic gravity #Euclidean quantum gravity #General relativity #Gravitation #Gravitational field #Hořava–Lifshitz gravity #Noncommutative and Quantum Gravity Theories #Quantum #Quantum Mechanics and Applications #Quantum gravity #Semiclassical gravity #Semiclassical physics #gr-qc #quant-ph

paper · pdf · doi:10.1088/1742-6596/504/1/012021

18 pages. Invited talk at the Second International Conference on Emergent Quantum Mechanics, Vienna, October 3-6, 2013. Note: this arXiv version is more up to date than that which will appear in J. Phys. (Conf. Ser.)

arxiv created 2014/02/26 · openalex publication_date 2014/04/14 · arxiv updated 2015/06/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

In this report we discuss three aspects: 1) Semiclassical gravity theory (SCG): 4 levels of theories describing the interaction of quantum matter with classical gravity. 2) Alternative Quantum Theories: Discerning those which are derivable from general relativity (GR) plus quantum field theory (QFT) from those which are not 3) Gravitational Decoherence: derivation of a master equation and examination of the assumptions which led to the claims of observational possibilities. We list three sets of corresponding problems worthy of pursuit: a) Newton-Schrödinger Equations in relation to SCG; b) Master equation of gravity-induced effects serving as discriminator of 2); and c) Role of gravity in macroscopic quantum phenomena.

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