Disappearance and emergence of space and time in quantum gravity
نویسندگان
چکیده
منابع مشابه
Disappearance and emergence of space and time in quantum gravity
We discuss the hints for the disappearance of continuum space and time at microscopic scale. These include arguments for a discrete nature of them or for a fundamental non-locality, in a quantum theory of gravity. We discuss how these ideas are realized in specific quantum gravity approaches. Turning then the problem around, we consider the emergence of continuum space and time from the collect...
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A method has been recently proposed for defining an arbitrary number of differential calculi over a given noncommutative associative algebra. As an example a version of quantized space-time is considered here. It is found that there is a natural differential calculus using which the space-time is necessarily flat Minkowski space-time. Perturbations of this calculus are shown to give rise to non...
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15 صفحه اولul 2 00 0 QUANTUM SPACE - TIME AND REFERENCE FRAMES IN GRAVITY AND FLAT SPACE - TIME
The quantum space-time model which accounts material Reference Frames (RF) quantum effects considered for flat space-time and ADM canonical gravity. As was shown by Aharonov for RF-free material object its c.m. non-relativistic motion in vacuum described by Schrodinger wave packet evolution which modify space coordinate operator of test particle in this RF and changes its Heisenberg uncertainty...
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ژورنال
عنوان ژورنال: Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics
سال: 2014
ISSN: 1355-2198
DOI: 10.1016/j.shpsb.2013.10.006