Emergence of space–time from topologically homogeneous causal networks
نویسندگان
چکیده
منابع مشابه
Causal and homogeneous networks
Growing networks have a causal structure. We show that the causality strongly influences the scaling and geometrical properties of the network. In particular the average distance between nodes is smaller for causal networks than for corresponding homogeneous networks. We explain the origin of this effect and illustrate it using as an example a solvable model of random trees. We also discuss the...
متن کاملEmergence of the Electroweak Scale from Fractal Spacetime
As of today, neither one of the mass generation mechanisms of the Standard Model (SM) can convincingly explain the source of the electroweak scale. In this brief report we argue that the onset of fractal spacetime near the electroweak interaction provides a natural motivation for the emergence of this scale.
متن کاملSpacetime geometry from causal structure and a measurement
The causal structure of spacetime defines a partial order on the events of spacetime. In an earlier paper, using techniques from domain theory, we showed that for globally hyperbolic spacetimes one could reconstruct the topology from the causal structure. However, the causal structure determines the metric only up to a local rescaling (a conformal transformation); in a four dimensional spacetim...
متن کاملCausal Geometry of Rough Einstein Cmcsh Spacetime
This is the second paper of the series of two papers in which we consider very rough solutions to Cauchy problem for the Einstein vacuum equations in CMC spacial harmonic gauge, and obtain the local well-posedness result in Hs, s > 2. The novelty of our approach lies in that, without resorting to the standard paradifferential regularization over the rough, Einstein metric g, we manage to implem...
متن کاملCoherence and Emergence of Classical Spacetime
Using the coherent-state representation we show that the classical Einstein equation for the FRW cosmological model with a general minimal scalar field can be derived from the semiclassical quantum Einstein equation. E-Mail: [email protected] E-Mail: [email protected] E-Mail: [email protected] 1 Canonical quantum gravity has been initiated by DeWitt in the seminal paper [1]. As ...
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: Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics
سال: 2013
ISSN: 1355-2198
DOI: 10.1016/j.shpsb.2013.04.003