The Problem Of Time
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The Problem Of Time
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Author : John Alexander Gunn
language : en
Publisher: London : G. Allen & Unwin
Release Date : 1929
The Problem Of Time written by John Alexander Gunn and has been published by London : G. Allen & Unwin this book supported file pdf, txt, epub, kindle and other format this book has been release on 1929 with Space and time categories.
Relational Evolution And The Problem Of Time
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Author : Luis Martinez
language : en
Publisher:
Release Date : 2023
Relational Evolution And The Problem Of Time written by Luis Martinez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.
The role of time in modern physics requires a robust generalization, free from the constraints placed during the infancy of quantum mechanics and general relativity. I present a more general approach to time in quantum mechanics, in which the core mathematical framework stems from canonical quantum gravity and quantum field theory. In a canonical formulation coordinate time t absconds from its classical role and instead serves as a gauge parameter. Other phase space variables may generate gauge-independent evolution in a relational sense. In this manner, evolution depends on the differences between different phase space variables. However, relational time still requires a reference variable, preferably one with a monotonic relationship with gauge variable t. Finding an appropriate reference variable and constructing global evolution encompasses the main issue with the problem of time. Possible candidates for this variable, if at all available, couple to other degrees of freedom or exist only locally. In extending from local to global evolution, past solutions encountered instances where the reference variable generated non-unitary evolution at phase space locations defined as turning points. Previous literature in the problem of time either focused on regions away from the turning points or did not address the non-unitary evolution past the turning point. I incorporate these turning points into the methodology to show that not only do we recover unitary evolution but obtain deviations from expected classical evolution. These deviations range from several orders of magnitude above the Plank scale and thus could be experimentally verified.
The Problem Of Time
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Author : Philosophical Union of the University of California
language : en
Publisher:
Release Date : 1935
The Problem Of Time written by Philosophical Union of the University of California and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1935 with Space and time categories.
The Problem Of Time
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Author : Edward Anderson
language : en
Publisher: Springer
Release Date : 2017-09-18
The Problem Of Time written by Edward Anderson and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-18 with Science categories.
This book is a treatise on time and on background independence in physics. It first considers how time is conceived of in each accepted paradigm of physics: Newtonian, special relativity, quantum mechanics (QM) and general relativity (GR). Substantial differences are moreover uncovered between what is meant by time in QM and in GR. These differences jointly source the Problem of Time: Nine interlinked facets which arise upon attempting concurrent treatment of the QM and GR paradigms, as is required in particular for a background independent theory of quantum gravity. A sizeable proportion of current quantum gravity programs - e.g. geometrodynamical and loop quantum gravity approaches to quantum GR, quantum cosmology, supergravity and M-theory - are background independent in this sense. This book's foundational topic is thus furthermore of practical relevance in the ongoing development of quantum gravity programs. This book shows moreover that eight of the nine facets of the Problem of Time already occur upon entertaining background independence in classical (rather than quantum) physics. By this development, and interpreting shape theory as modelling background independence, this book further establishes background independence as a field of study. Background independent mechanics, as well as minisuperspace (spatially homogeneous) models of GR and perturbations thereabout are used to illustrate these points. As hitherto formulated, the different facets of the Problem of Time greatly interfere with each others' attempted resolutions. This book explains how, none the less, a local resolution of the Problem of Time can be arrived at after various reconceptualizations of the facets and reformulations of their mathematical implementation. Self-contained appendices on mathematical methods for basic and foundational quantum gravity are included. Finally, this book outlines how supergravity is refreshingly different from GR as a realization of background independence, and what background independence entails at the topological level and beyond.
International Relations And The Problem Of Time
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Author : Andrew R. Hom
language : en
Publisher: Oxford University Press
Release Date : 2020-05-26
International Relations And The Problem Of Time written by Andrew R. Hom and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-26 with Political Science categories.
What is time and how does it influence our knowledge of international politics? For decades International Relations (IR) paid little explicit attention to time. Recently this began to change as a range of scholars took an interest in the temporal dimensions of politics. Yet IR still has not fully addressed the issue of why time matters in international politics, nor has it reflected on its own use of time — how temporal ideas affect the way we work to understand political phenomena. Moreover, IR remains beholden to two seemingly contradictory visions of time: the time of the clock and a longstanding tradition treating time as a problem to be solved. International Relations and the Problem of Time develops a unique response to these interconnected puzzles. It reconstructs IR's temporal imagination by developing an argument that all times - from natural rhythms to individual temporal experience - spring from social and practical timing activities, or efforts to establish meaningful and useful relationships in complex and dynamic settings. In IR's case, across a surprisingly wide range of approaches scholars employ narrative timing techniques to make sense of confounding processes and events. This innovative account of time provides a more systematic and rigorous explanation for time in international politics. It also develops provocative insights about IR's own history, its key methodological commitments, supposedly 'timeless' statistical methods, historical institutions, and the critical vanguard of time studies. This book invites us to reimagine time, and in so doing to significantly rethink the way we approach the analysis of international politics.
Phenomenology And The Problem Of Time
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Author : Michael R. Kelly
language : en
Publisher: Springer
Release Date : 2016-09-15
Phenomenology And The Problem Of Time written by Michael R. Kelly and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-15 with Philosophy categories.
This book explores the problem of time and immanence for phenomenology in the work of Edmund Husserl, Martin Heidegger, Maurice Merleau-Ponty, and Jacques Derrida. Detailed readings of immanence in light of the more familiar problems of time-consciousness and temporality provide the framework for evaluating both Husserl's efforts to break free of modern philosophy's notions of immanence, and the influence Heidegger's criticism of Husserl exercised over Merleau-Ponty's and Derrida's alternatives to Husserl's phenomenology. Ultimately exploring various notions of intentionality, these in-depth analyses of immanence and temporality suggest a new perspective on themes central to phenomenology's development as a movement and raise for debate the question of where phenomenology begins and ends.
An Introduction To The Problem Of Time
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Author : John Arthur Martin
language : en
Publisher:
Release Date : 1934
An Introduction To The Problem Of Time written by John Arthur Martin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1934 with categories.
Time What It Is How It Works
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Author : Jack Martinelli
language : en
Publisher: Jack Martinelli
Release Date : 2015-03-27
Time What It Is How It Works written by Jack Martinelli and has been published by Jack Martinelli this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03-27 with Science categories.
The mystery of time has baffled physicists for more than 100 years. Thousands of pages have been written on the subject and in each case the focus is on the clues, mysteries, puzzles and paradoxes and in the end … all unresolved. If you thought Einstein cracked the problem of time, think again. He barely opened the door. Brian Greene of string theory fame asked some of the worlds leading physicists “what is time?”. This is what they said: Janna Levin of Columbia University responded with “We'd like to corner time as a thing but it defies that by being momentary, by only having definitions that harken back to notions of time itself.” Alan Guth of MIT, one of the creators of “Inflationary Cosmology” said “Time... that's the $64,000 question to physics.” David Albert of Columbia University said “Time is the thing that everyone knows intimately until you ask them to tell you about it.” Max Tegmark of MIT admits that “There is basically no aspect of time that we fully understand.” In a brief 8 pages, this article makes the subject of objective physics (vs theoretical physics) available to any layman with a scientific curiosity. In the first 2 pages the reader will “get it” and with only a bit of determination will be able to follow along as we “do the math” and address the last hanging questions. In the end I think you'll agree that this opens the door to some very new physics and also that “Time, what it is and what it does is as obvious as the wheel.”
Some Aspects Of The Problem Of Time
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Author : Martha Hurst
language : en
Publisher:
Release Date : 1934
Some Aspects Of The Problem Of Time written by Martha Hurst and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1934 with Time categories.
The Problem Of Time
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Author :
language : en
Publisher:
Release Date : 1938
The Problem Of Time written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1938 with categories.
