搜索结果: 1-15 共查到“科学技术哲学 Gravity”相关记录43条 . 查询时间(0.23 秒)
A proposal for a Bohmian ontology of quantum gravity
Bohmian mechanics loop quantum gravity emergence of space-time non-local law primitive ontology Wheeler-DeWitt equation
2016/6/15
The paper shows how the Bohmian approach to quantum physics can be applied to develop a clear and coherent ontology of non-perturbative quantum gravity. We suggest retaining discrete objects as the pr...
Gravity and Gauge
gravity gauge theory topological quantum field theory Chern-Simons theory
2016/6/15
Philosophers of physics and physicists have long been intrigued by the analogies and disanalogies between gravitational theories and (Yang-Mills-type) gauge theories. Indeed, repeated attempts to coll...
An Adynamical,Graphical Approach to Quantum Gravity and Unification
quantum gravity unification lattice gauge theory Regge calculus path integral graphs
2016/6/15
We propose an adynamical, background independent approach to quantum gravity and unification whereby the fundamental elements of Nature are graphical units of space, time and sources (in parlance of q...
Benefits of Objective Collapse Models for Cosmology and Quantum Gravity
Objective collapse Dynamical reduction Quantum gravity Cosmology
2016/6/15
We display a number of advantages of objective collapse theories for the resolution of long-standing problems in cosmology and quantum gravity. In particular, we examine applications of objective redu...
Disappearance and emergence of space and time in quantum gravity
quantum gravity foundations of spacetime theories emergent spacetime condensed matter cosmology
2016/6/15
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 theor...
Why Einstein did not believe that General Relativity geometrizes gravity
General Relativity Einstein Geometrization Unification Inertia Gravity Geodesic Equation Meyerson
2016/6/14
I argue that, contrary to folklore, Einstein never really cared for geometrizing the gravitational or (subsequently) the electromagnetic field; indeed, he thought that the very statement that General ...
The emergence of spacetime in quantum theories of gravity
spacetime quantum gravity emergence
2016/6/13
This is the introduction to the special issue of Studies in the History and Philosophy of Modern Physics on the emergence of spacetime in quantum theories of spacetime.
Does gravity induce wavefunction collapse?An examination of Penrose's conjecture
gravity wavefunction collapse quantum mechanics general relativity measurement problem
2016/6/13
According to Penrose, the fundamental conflict between the superposition principle of quantum mechanics and the principle of general covariance of general relativity entails the existence of wavefunct...
Gravity and Gauge
gravity gauge theory philosophy of spacetime general relativity Chern-Simons theory
2016/5/31
Philosophers of physics and physicists have long been intrigued by the analogies and disanalogies between gravitational theories and (Yang-Mills-type) gauge theories. Indeed, repeated attempts to col-...
A dilemma for the emergence of spacetime in canonical quantum gravity
spacetime emergence quantum geometrodynamics loop quantum gravity quantum superposition quantum entanglement non-separability structural realism local beables
2016/5/30
The procedures of canonical quantization of the gravitational field apparently lead to entities for which any interpretation in terms of spatio-temporal localization or spatio-temporal extension seems...
Time in quantum gravity
quantum gravity problem of time quantum general relativity string theory noncommutative spacetime metaphysics of space metaphysics of time causation
2016/5/30
Quantum gravity--the marriage of quantum physics with general relativity--is bound to contain deep and important lessons for the nature of physical time. Some of these lessons shall be canvassed here,...
We outline three principles that should guide us in the construction of a theory of canonical quantum gravity: 1) diffeomorphism invariance, 2) implementing the proper dynamics and related constraint ...
On the origin of gravity
discrete spacetime gravity general relativity minimum length uncertainty principle
2016/5/30
It is argued that the existence of a minimum interval of space and time may imply the existence of gravity as a geometric property of spacetime described by general relativity.
General Covariance and Background Independence in Quantum Gravity
general covariance background independence quantum gravity string theory loop quantum gravity spin foam models
2016/5/27
The history of general relativity suggests that in absence of experi-mental data, constructing a theory on philosophical first principles can lead to a very useful theory as well as to ground-breaking...
Two Senses of Activity and Gravity in Newton's Treatise
Action at a distance, Active principles, Causal hypothesis, Gravity, Isaac Newton, Vis inertiae
2011/9/8
Newton’s Treatise contains an intriguing description of the gravitational force, one that casts the force as arising from ‘the universal nature of matter’ and as having its ‘double cause’ in the ‘disp...