2017/06/30 by Angelo Bassi, André Großardt, Hendrik Ulbricht · 3 citations
Medicine · Physics and Astronomy · #Biofield Effects and Biophysics #Classical mechanics #Coherence (philosophical gambling strategy) #Euclidean quantum gravity #Gravitation #Hořava–Lifshitz gravity #Loop quantum gravity #Physics #Quantum #Quantum Electrodynamics and Casimir Effect #Quantum Mechanics and Applications #Quantum decoherence #Quantum dynamics #Quantum gravity #Quantum mechanics #Quantum process #Semiclassical gravity #Theoretical physics #gr-qc #quant-ph
paper · pdf · doi:10.1088/1361-6382/aa864f
published as Class. Quantum Grav. 34, 193002 (2017) · Invited topical review article for Classical and Quantum Gravity, 78 pages
openalex publication_date 2017/08/15 · arxiv created 2017/09/01 · arxiv updated 2017/09/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Abstract We discuss effects of loss of coherence in low energy quantum systems caused by or related to gravitation, referred to as gravitational decoherence. These effects, resulting from random metric fluctuations, for instance, promise to be accessible by relatively inexpensive table-top experiments, way before the scales where true quantum gravity effects become important. Therefore, they can provide a first experimental view on gravity in the quantum regime. We will survey models of decoherence induced both by classical and quantum gravitational fluctuations; it will be manifest that a clear understanding of gravitational decoherence is still lacking. Next we will review models where quantum theory is modified, under the assumption that gravity causes the collapse of the wave functions, when systems are large enough. These models challenge the quantum-gravity interplay, and can be tested experimentally. In the last part we have a look at the state of the art of experimental research. We will review efforts aiming at more and more accurate measurements of gravity ( G and g ) and ideas for measuring conventional and unconventional gravity effects on nonrelativistic quantum systems.