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Temporal Arrows in Space-Time
Arrows of time entropy four-dimensional world invariance space-time thermodynamics
2016/6/15
The prevailing current of thought in both physics and philosophy is that relativistic space-time provides no means for the objective measurement of the passage of time. Kurt Gödel, for instance, ...
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...
A generalized manifold topology for branching space-times
Indeterminism possibility branching general relativity modal consistency non-Hausdorff manifolds
2016/6/14
The logical theory of branching space-times (Belnap, Synthese 1992), which provides a relativistic framework for studying objective indeterminism, remains mostly disconnected from the discussion of sp...
Space-time,relativity and quantum mechanics:In search of a deeper connection
spacetime translation invariance relativistic invariance linear quantum evolution free Schrodinger equation
2016/6/13
It has been shown that the Lorentz transformations in special relativity can be derived in terms of the principle of relativity and certain properties of space and time such as homogeneity. In this pa...
The GRW flash theory:a relativistic quantum ontology of matter in space-time?
Bell’s theorem Bohmian mechanics collapse of the wave-function dispositionalism GRW flash GRW mass density Humeanism Lorentz-invariance primitive ontology propensities relativistic collapse theory
2016/6/13
John Bell proposed an ontology for the GRW modification of quantum mechanics in terms of flashes occurring at space-time points. The paper spells out the motivation for this ontology, enquires into th...
The back cover text of this excellent monograph closes with a b old remark on its metho dology:“[T]he assumption that the fundamental laws of physics are simple in terms of the fundamental physical pr...
Einstein,the reality of space,and the action-reaction principle
Einstein action-reaction spacetime Schlick Mach
2016/6/12
Einstein regarded as one of the triumphs of his 1915 theory of gravity - the general theory of relativity - that it vindicated the action-reaction principle, while Newtonian mechanics as well as his 1...
Branching Space-Times and Parallel Processing
Branching space-times parallel processing event structures Chu spaces
2016/5/31
There is a remarkable similarity between some mathematical objects used in the Branching Space-Times framework and those appearing in computer science in the fields of event structures for concurrent ...
What can we Learn about the Ontology of Space and Time from the Theory of Relativity
space time relativity
2016/5/30
This chapter presents an opinionated assessment of what we can learn about the ontology of space and time from the special and general theories of relativity. It uses the requirements of novelty, mode...
Abstraction and its Limits:Finding Space for Novel Explanation
Emergence Abstraction Idealization Explanation Statistical mechanics Thermodynamics Phase transitions
2016/5/30
Several modern accounts of explanation acknowledge the importance of abstraction and idealization for our explanatory practice. However, once we allow a role for abstraction, questions remain. I ask w...
Newton on Matter and Space in De gravitatione et aequipondio fluidorum
Isaac Newton Matter Space
2016/5/30
This paper explicates the concepts of matter and space that Newton develops in De gravitatione. As I interpret Newton’s account of created substances, bodies are constructed from qualities alone, as c...
Category theory applied to a radically new but logically essential description of time and space
Category theory applied radically new logically essential description
2015/7/28
McTaggart's ideas on the unreality of time as expressed in "The Nature of Existence" have retained great interest for many years for scholars, academics and other philosophers. In this essay, there is...
A theory of causation: causae causantes (originating causes) as inus conditions in branching space-times
causation indeterminism inus conditions branching space-times
2011/9/6
Branching space-times (BST) theory, as developed elsewhere, permits a sound and rigorously definable notion of ``originating cause'' or causa causans---a type of transition event---of an outcome event...
No-common-cause EPR-like funny business in branching space-times
Reichenbach common cause branching space-times EPR indeterminism superluminal causation space-like related correlation
2011/9/6
There is "no EPR-like funny business" if (contrary to apparent fact) our world is as indeterministic as you wish, but is free from the EPR-like quantum-mechanical phenomena such as is sometimes descri...
EPR-like ``funny business'' in the theory of branching space-times
branching space-times EPR indeterminism cause correlation transition
2011/9/6
EPR-like phenomena are (presumably) indeterministic, but they furthermore suggest that our world involves seeming-strange ``funny business.'' Without invoking any heavy mathematics, the theory of bran...