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The Arguments of Time

Jeremy Butterfield (ed.)

Published in print:
2006
Published Online:
January 2012
ISBN:
9780197263464
eISBN:
9780191734748
Item type:
book
Publisher:
British Academy
DOI:
10.5871/bacad/9780197263464.001.0001
Subject:
Philosophy, General

These nine chapters, commissioned on the initiative of the Philosophy section of the British Academy, address fundamental questions about time in philosophy, physics, linguistics, and psychology. Are ... More


On the Emergence of Time in Quantum Gravity

Jeremy Butterfield and Chris Isham

in The Arguments of Time

Published in print:
2006
Published Online:
January 2012
ISBN:
9780197263464
eISBN:
9780191734748
Item type:
chapter
Publisher:
British Academy
DOI:
10.5871/bacad/9780197263464.003.0006
Subject:
Philosophy, General

This chapter discusses the idea that the treatment of time in present-day physical theories, general relativity and quantum theory, might be an approximation to a very different treatment in the as ... More


Quantum Gravity: Third Edition

Claus Kiefer

Published in print:
2012
Published Online:
May 2012
ISBN:
9780199585205
eISBN:
9780191739378
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199585205.001.0001
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This book is concerned with the attempts to unify Einstein's theory of general relativity and quantum theory into a theory of quantum gravity. It presents, for the first time, most of the approaches ... More


Quantum Gravity Meets Structuralism: Interweaving Relations in the Foundations of Physics

Dean Rickles and Steven French

in The Structural Foundations of Quantum Gravity

Published in print:
2006
Published Online:
October 2011
ISBN:
9780199269693
eISBN:
9780191699436
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199269693.003.0001
Subject:
Philosophy, Philosophy of Science

This introductory chapter provides some of the technical and philosophical background to the issues discussed in this volume. Topics covered include the background, concepts and methods of quantum ... More


The Structural Foundations of Quantum Gravity

Dean Rickles, Steven French, and Juha T. Saatsi (eds)

Published in print:
2006
Published Online:
October 2011
ISBN:
9780199269693
eISBN:
9780191699436
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199269693.001.0001
Subject:
Philosophy, Philosophy of Science

Quantum gravity is the name given to a theory that unites general relativity — Einstein's theory of gravitation and spacetime — with quantum field theory, our framework for describing ... More


Structural Realism and Quantum Gravity

Tian Yu Cao

in The Structural Foundations of Quantum Gravity

Published in print:
2006
Published Online:
October 2011
ISBN:
9780199269693
eISBN:
9780191699436
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199269693.003.0002
Subject:
Philosophy, Philosophy of Science

Technically, it is very difficult to construct a tenable quantum theory of gravity. The major concern of a philosopher, however, is with having a consistent strategy to guide technical moves. If we ... More


Quantum Gravity

Claus Kiefer

Published in print:
2007
Published Online:
January 2010
ISBN:
9780199212521
eISBN:
9780191707377
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199212521.001.0001
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This book is concerned with the attempts to unify Einstein's theory of general relativity and quantum theory into a theory of quantum gravity. Among the approaches include canonical quantum gravity ... More


Covariant approaches to quantum gravity

Claus Kiefer

in Quantum Gravity: Third Edition

Published in print:
2012
Published Online:
May 2012
ISBN:
9780199585205
eISBN:
9780191739378
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199585205.003.0002
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter introduces the important concept of the graviton. It discusses at some length linearized quantum gravity and its implications. A central role is played by path-integral quantization from ... More


Phenomenology, decoherence, and the arrow of time

Claus Kiefer

in Quantum Gravity: Third Edition

Published in print:
2012
Published Online:
May 2012
ISBN:
9780199585205
eISBN:
9780191739378
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199585205.003.0010
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This final chapter starts with a brief review of quantum-gravity phenomenology. It then focuses on an important conceptual issue – the relevance of quantum gravity for the general interpretation of ... More


Why Quantum Gravity?

Claus Kiefer

in Quantum Gravity

Published in print:
2007
Published Online:
January 2010
ISBN:
9780199212521
eISBN:
9780191707377
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199212521.003.01
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This introductory chapter presents the general motivation for constructing a quantum theory of gravity. The main motivation is the conceptual incompleteness of present theoretical physics. It ... More


Points, Particles, and Structural Realism

Oliver Pooley

in The Structural Foundations of Quantum Gravity

Published in print:
2006
Published Online:
October 2011
ISBN:
9780199269693
eISBN:
9780191699436
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199269693.003.0004
Subject:
Philosophy, Philosophy of Science

This chapter argues that, whatever the interpretative difficulties of generally covariant spacetime physics are, they do not support or suggest structural realism. In particular, it shows that there ... More


A Lab for Quantum Gravity

Pankaj S. Joshi

in The Story of Collapsing Stars: Black Holes, Naked Singularities, and the Cosmic Play of Quantum Gravity

Published in print:
2015
Published Online:
January 2015
ISBN:
9780199686766
eISBN:
9780191766817
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199686766.003.0009
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter discusses here the various approaches available today to construct a quantum theory of gravity for the universe. These include the string theories and loop quantum gravity ... More


On Writing a History of Quantum Gravity

Dean Rickles

in Covered with Deep Mist: The Development of Quantum Gravity (1916-1956)

Published in print:
2020
Published Online:
April 2020
ISBN:
9780199602957
eISBN:
9780191844393
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199602957.003.0002
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter describes some of the special challenges and novelties facing historical research in quantum gravity. Though often looked at with wry amusement when mentioned in the same breath, ... More


Covariant Approaches to Quantum Gravity

Claus Kiefer

in Quantum Gravity

Published in print:
2007
Published Online:
January 2010
ISBN:
9780199212521
eISBN:
9780191707377
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199212521.003.02
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter introduces the important concept of a graviton. It discusses at some length linearized quantum gravity and its implications. A central role is played by path-integral quantization from ... More


The Problem of Quantum Gravity: From Feelings to Phenomena

Dean Rickles

in Covered with Deep Mist: The Development of Quantum Gravity (1916-1956)

Published in print:
2020
Published Online:
April 2020
ISBN:
9780199602957
eISBN:
9780191844393
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199602957.003.0001
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter provides a simple, schematic introduction to the problem of quantum gravity. The problem of quantum gravity spent much of its earliest history at the mercy of wider changes with respect ... More


Another Field to the Pot

Dean Rickles

in Covered with Deep Mist: The Development of Quantum Gravity (1916-1956)

Published in print:
2020
Published Online:
April 2020
ISBN:
9780199602957
eISBN:
9780191844393
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199602957.003.0005
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter focuses on the impact of field quantization methods on the problem of quantum gravity. It is shown that much work after 1930 until mid-century was an exercise in ‘exploring the ... More


Quantum gravity with connections and loops

Claus Kiefer

in Quantum Gravity: Third Edition

Published in print:
2012
Published Online:
May 2012
ISBN:
9780199585205
eISBN:
9780191739378
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199585205.003.0006
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter does for the connection and loop variables what is done for the metric variables in Chapter 5. Loop quantum gravity is discussed in detail. Its canonical variables are holonomies and ... More


The Shock of the New

Dean Rickles

in Covered with Deep Mist: The Development of Quantum Gravity (1916-1956)

Published in print:
2020
Published Online:
April 2020
ISBN:
9780199602957
eISBN:
9780191844393
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199602957.003.0004
Subject:
Physics, Theoretical, Computational, and Statistical Physics

In this chapter, we show how the newest developments in quantum mechanics of the late 1920s were very quickly compared with general relativity, with attempts made to demonstrate their mutual ... More


Custodian of quantum field theory

JAGDISH MEHRA and KIMBALL A. MILTON

in Climbing the Mountain: The Scientific Biography of Julian Schwinger

Published in print:
2003
Published Online:
February 2010
ISBN:
9780198527459
eISBN:
9780191709593
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198527459.003.0011
Subject:
Physics, History of Physics

Julian Schwinger had now scaled the peak of quantum electrodynamics (QED), not once, but three times, the last time by inventing a new approach to any quantum-mechanical system, the quantum dynamical ... More


Quantum Gravity as a Resource

Dean Rickles

in Covered with Deep Mist: The Development of Quantum Gravity (1916-1956)

Published in print:
2020
Published Online:
April 2020
ISBN:
9780199602957
eISBN:
9780191844393
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199602957.003.0007
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter focuses on the central motivation for much of what can be labeled ‘quantum gravity’ in the earliest phases of research, namely that it provides a potentially abundant resource for curing ... More


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