Emergence of Time in Quantum Gravity: Is Time Necessarily Flowing?
نویسندگان
چکیده
منابع مشابه
On the Emergence of Time in Quantum Gravity
We discuss from a philosophical perspective the way in which the normal concept of time might be said to ‘emerge’ in a quantum theory of gravity. After an introduction, we briefly discuss the notion of emergence, without regard to time (Section 2). We then introduce the search for a quantum theory of gravity (Section 3); and review some general interpretative issues about space, time and matter...
متن کاملDisappearance 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...
متن کاملTime, Gravity, and Quantum Mechanics
The role that time plays in Einstein's theory of gravity and in quantum mechanics is described, and the difficulties that these conflicting roles present for a quantum theory of gravity are described. The relation of any fundamental theory to time is crucial as was evident from the earliest days of physics. If we go back to Newton's Principia, in which he established a general theoretical struc...
متن کاملDoes Time Exist in Quantum Gravity?
Time is absolute in standard quantum theory and dynamical in general relativity. The combination of both theories into a theory of quantum gravity leads therefore to a “problem of time”. In my essay I shall investigate those consequences for the concept of time that may be drawn without a detailed knowledge of quantum gravity. The only assumptions are the experimentally supported universality o...
متن کاملTime in (2+1)-Dimensional Quantum Gravity
General relativity in three spacetime dimensions is used to explore three approaches to the “problem of time” in quantum gravity: the internal Schrödinger approach with mean extrinsic curvature as a time variable, the Wheeler-DeWitt equation, and covariant canonical quantization with “evolving constants of motion.” (To appear in Proc. of the Lanczos Centenary Conference, Raleigh, NC, December 1...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Kronoscope
سال: 2013
ISSN: 1567-715X,1568-5241
DOI: 10.1163/15685241-12341259