Time's Arrows and Quantum Measurement

Time's Arrows and Quantum Measurement PDF Author: Lawrence S. Schulman
Publisher: Cambridge University Press
ISBN: 9780521567756
Category : Science
Languages : en
Pages : 370

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Book Description
An introduction to the arrow of time and a new, related, theory of quantum measurement.

Time's Arrows and Quantum Measurement

Time's Arrows and Quantum Measurement PDF Author: Lawrence S. Schulman
Publisher: Cambridge University Press
ISBN: 9780521567756
Category : Science
Languages : en
Pages : 370

Get Book Here

Book Description
An introduction to the arrow of time and a new, related, theory of quantum measurement.

Time's Arrow and Archimedes' Point

Time's Arrow and Archimedes' Point PDF Author: Huw Price
Publisher: Oxford University Press
ISBN: 0199839328
Category : Philosophy
Languages : en
Pages : 321

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Book Description
Why is the future so different from the past? Why does the past affect the future and not the other way around? What does quantum mechanics really tell us about the world? In this important and accessible book, Huw Price throws fascinating new light on some of the great mysteries of modern physics, and connects them in a wholly original way. Price begins with the mystery of the arrow of time. Why, for example, does disorder always increase, as required by the second law of thermodynamics? Price shows that, for over a century, most physicists have thought about these problems the wrong way. Misled by the human perspective from within time, which distorts and exaggerates the differences between past and future, they have fallen victim to what Price calls the "double standard fallacy": proposed explanations of the difference between the past and the future turn out to rely on a difference which has been slipped in at the beginning, when the physicists themselves treat the past and future in different ways. To avoid this fallacy, Price argues, we need to overcome our natural tendency to think about the past and the future differently. We need to imagine a point outside time -- an Archimedean "view from nowhen" -- from which to observe time in an unbiased way. Offering a lively criticism of many major modern physicists, including Richard Feynman and Stephen Hawking, Price shows that this fallacy remains common in physics today -- for example, when contemporary cosmologists theorize about the eventual fate of the universe. The "big bang" theory normally assumes that the beginning and end of the universe will be very different. But if we are to avoid the double standard fallacy, we need to consider time symmetrically, and take seriously the possibility that the arrow of time may reverse when the universe recollapses into a "big crunch." Price then turns to the greatest mystery of modern physics, the meaning of quantum theory. He argues that in missing the Archimedean viewpoint, modern physics has missed a radical and attractive solution to many of the apparent paradoxes of quantum physics. Many consequences of quantum theory appear counterintuitive, such as Schrodinger's Cat, whose condition seems undetermined until observed, and Bell's Theorem, which suggests a spooky "nonlocality," where events happening simultaneously in different places seem to affect each other directly. Price shows that these paradoxes can be avoided by allowing that at the quantum level the future does, indeed, affect the past. This demystifies nonlocality, and supports Einstein's unpopular intuition that quantum theory describes an objective world, existing independently of human observers: the Cat is alive or dead, even when nobody looks. So interpreted, Price argues, quantum mechanics is simply the kind of theory we ought to have expected in microphysics -- from the symmetric standpoint. Time's Arrow and Archimedes' Point presents an innovative and controversial view of time and contemporary physics. In this exciting book, Price urges physicists, philosophers, and anyone who has ever pondered the mysteries of time to look at the world from the fresh perspective of Archimedes' Point and gain a deeper understanding of ourselves, the universe around us, and our own place in time.

Time's Arrows Today

Time's Arrows Today PDF Author: Steven F. Savitt
Publisher: Cambridge University Press
ISBN: 9780521599450
Category : Science
Languages : en
Pages : 348

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Book Description
While experience tells us that time flows from the past to the present and into the future, a number of philosophical and physical objections exist to this commonsense view of dynamic time. In an attempt to make sense of this conundrum, philosophers and physicists are forced to confront fascinating questions, such as: Can effects precede causes? Can one travel in time? Can the expansion of the Universe or the process of measurement in quantum mechanics define a direction in time? In this book, researchers from both physics and philosophy attempt to answer these issues in an interesting, yet rigorous way. This fascinating book will be of interest to physicists and philosophers of science and educated general readers interested in the direction of time.

Time's Arrow

Time's Arrow PDF Author: Michael C. Mackey
Publisher: Courier Corporation
ISBN: 0486152251
Category : Science
Languages : en
Pages : 212

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Book Description
Exploration of Second Law of Thermodynamics details fundamental dynamic properties behind the construction of statistical mechanics. Geared toward physicists and applied mathematicians; suitable for advanced undergraduate, graduate courses. 1992 edition.

Time's Arrows, Quantum Measurement, and Superluminal Behavior

Time's Arrows, Quantum Measurement, and Superluminal Behavior PDF Author: Daniela Mugnai
Publisher: CNR Edizioni
ISBN:
Category : Science
Languages : en
Pages : 256

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Book Description


The Arrows of Time

The Arrows of Time PDF Author: Laura Mersini-Houghton
Publisher: Springer Science & Business Media
ISBN: 3642232590
Category : Science
Languages : en
Pages : 223

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Book Description
The concept of time has fascinated humanity throughout recorded history, and it remains one of the biggest mysteries in science and philosophy. Time is clearly one of the fundamental building blocks of the universe and thus a deeper understanding of nature at a fundamental level also demands a comprehension of time. Furthermore, the origins of the universe are closely intertwined with the puzzle of time: Did time emerge at the Big Bang? Why does the arrow of time ‘conspire’ with the order of the initial state of the universe? This book addresses many of the most important questions about time: What is time, and is it fundamental or emergent? Why is there such an arrow of time, closely related to the initial state of the universe, and why do the cosmic, thermodynamic and other arrows agree? These issues are discussed here by leading experts, and each offers a new perspective on the debate. Their contributions delve into the most difficult research topic in physics, also describing the latest cutting edge research on the subject. The book also offers readers a comparison between the different outlooks of philosophy, physics and cosmology on the puzzle of time. This volume is intended to be useful for research purposes, but most chapters are also accessible to a more general audience of scientifically educated readers looking for deeper insights.

The Emergent Multiverse

The Emergent Multiverse PDF Author: David Wallace
Publisher: OUP Oxford
ISBN: 0191057398
Category : Philosophy
Languages : en
Pages : 547

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Book Description
The Emergent Multiverse presents a striking new account of the 'many worlds' approach to quantum theory. The point of science, it is generally accepted, is to tell us how the world works and what it is like. But quantum theory seems to fail to do this: taken literally as a theory of the world, it seems to make crazy claims: particles are in two places at once; cats are alive and dead at the same time. So physicists and philosophers have often been led either to give up on the idea that quantum theory describes reality, or to modify or augment the theory. The Everett interpretation of quantum mechanics takes the apparent craziness seriously, and asks, 'what would it be like if particles really were in two places at once, if cats really were alive and dead at the same time'? The answer, it turns out, is that if the world were like that—if it were as quantum theory claims—it would be a world that, at the macroscopic level, was constantly branching into copies—hence the more sensationalist name for the Everett interpretation, the 'many worlds theory'. But really, the interpretation is not sensationalist at all: it simply takes quantum theory seriously, literally, as a description of the world. Once dismissed as absurd, it is now accepted by many physicists as the best way to make coherent sense of quantum theory. David Wallace offers a clear and up-to-date survey of work on the Everett interpretation in physics and in philosophy of science, and at the same time provides a self-contained and thoroughly modern account of it—an account which is accessible to readers who have previously studied quantum theory at undergraduate level, and which will shape the future direction of research by leading experts in the field.

Measurements and Time Reversal in Objective Quantum Theory

Measurements and Time Reversal in Objective Quantum Theory PDF Author: F. J. Belinfante
Publisher: Elsevier
ISBN: 1483155064
Category : Science
Languages : en
Pages : 163

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Book Description
Measurements and Time Reversal in Objective Quantum Theory is a three-chapter book that begins with a discussion on the fundamentals of conventional quantum theory. The second chapter focuses on the time arrow of quantum theory. It specifically presents a schematized account of the results of an interesting paper on time reversal in quantum theory published by Aharonov, Bergmann, and Lebowitz. The last chapter presents the authors' conclusions and additional comments in this field. This book will be valuable to students of wave mechanics and will serve as a supplement to textbooks, which fail to present an appropriate discussion of these matters.

Physical Origins of Time Asymmetry

Physical Origins of Time Asymmetry PDF Author: J. J. Halliwell
Publisher: Cambridge University Press
ISBN: 9780521568371
Category : Science
Languages : en
Pages : 540

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Book Description
We say that the processes going on in the world about us are asymmetric in time or display an arrow of time. Yet this manifest fact of our experience is particularly difficult to explain in terms of the fundamental laws of physics. This volume reconciles these profoundly conflicting facts.

Black Holes, Wormholes and Time Machines

Black Holes, Wormholes and Time Machines PDF Author: Jim Al-Khalili
Publisher: CRC Press
ISBN: 1040063012
Category : Science
Languages : en
Pages : 209

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Book Description
Bringing the material up to date, Black Holes, Wormholes and Time Machines, Second Edition captures the new ideas and discoveries made in physics since the publication of the best-selling first edition. While retaining the popular format and style of its predecessor, this edition explores the latest developments in high-energy astroparticle physics