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The Physical WorldAn Inspirational Tour of Fundamental Physics$
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Nicholas Manton and Nicholas Mee

Print publication date: 2017

Print ISBN-13: 9780198795933

Published to Oxford Scholarship Online: July 2017

DOI: 10.1093/oso/9780198795933.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 27 September 2021

Frontiers of Physics

Frontiers of Physics

Chapter:
(p.514) 15 Frontiers of Physics
Source:
The Physical World
Author(s):

Nicholas Manton

Nicholas Mee

Publisher:
Oxford University Press
DOI:10.1093/oso/9780198795933.003.0016

Despite the overwhelming successes of modern physics, there are questions that remain to be answered and these are considered in the final chapter. The interpretation of quantum mechanics is discussed, including the EPR paradox, the Aspect experiments and quantum entanglement. Next, the question of whether particles are really point-like and the possibility of an alternative description in terms of solitons is considered. The Skyrmion and the Standard Model sphaleron are described. Unexplained features of the universe, such as the matter–antimatter asymmetry, the existence of dark matter and the even more mysterious dark energy, are discussed. There is also a critique of the loose ends of the Standard Model and the need for a quantum theory of gravity. The chapter concludes with a look beyond the Standard Model at the arguments and evidence in favour of Grand Unified Theories and ultimately string theory.

Keywords:   EPR paradox, Aspect experiment, Skyrmion, sphaleron, Standard Model, matter–antimatter asymmetry, interpretation of quantum mechanics, soliton, Grand Unified Theories, dark matter

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