Search for Quantum Gravity
作者： John Ellis , N. E. Mavromatos , D. V. Nanopoulos
关键词: Quantum gravity 、 Planck length 、 Particle physics 、 Observatory 、 Semiclassical gravity 、 Hořava–Lifshitz gravity 、 Planck scale 、 Virtual black hole 、 Photon 、 Physics 、 Physics and Astronomy (miscellaneous)
摘要: A satisfactory theory of quantum gravity maynecessitate a drastic modification our perception ofspace-time, by giving it foamy structure at distancescomparable to the Planck length. It is argued in this essay that experimental detectionof such structures may be realistic possibility theforeseeable future. After brief review differenttheoretical approaches and relationships between them, we discussvarious possible tests quantumnature space-time. Observations photons fromdistant astrophysical sources as Gamma-Ray Bursters laboratory experiments on neutral kaon decays sensitive quantum-gravitational effectsif they are only minimally suppressed. Experimentallimits from Whipple Observatory CPLEAR Collaboration already probing close scale, significant increases sensitivityare feasible.
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