Experimental Search for Quantum Gravity
This book summarizes recent developments in the research area of quantum gravity phenomenology. A series of short and nontechnical essays lays out the prospects of various experimental possibilities and their current status. Finding observational evidence
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Sabine Hossenfelder Editor
Experimental Search for Quantum Gravity
FIAS Interdisciplinary Science Series Editor-in-chief Walter Greiner, Frankfurt am Main, Germany Editorial Board Ernst Bamberg, Frankfurt am Main, Germany Marc Thilo Figge, Jena, Germany Thomas Haberer, Heidelberg, Germany Volker Lindenstruth, Frankfurt am Main, Germany Joachim Reinhardt, Frankfurt, Germany Klaus Schulten, Urbana, USA Wolf Singer, Frankfurt am Main, Germany Horst Stöcker, Darmstadt, Germany
More information about this series at http://www.springer.com/series/10781
Sabine Hossenfelder Editor
Experimental Search for Quantum Gravity
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Editor Sabine Hossenfelder Frankfurt Institute for Advanced Studies (FIAS) Frankfurt am Main Germany
FIAS Interdisciplinary Science Series ISBN 978-3-319-64536-0 ISBN 978-3-319-64537-7 https://doi.org/10.1007/978-3-319-64537-7
(eBook)
Library of Congress Control Number: 2017948197 © Springer International Publishing AG 2018 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Printed on acid-free paper This Springer imprint is published by Springer Nature The registered company is Springer International Publishing AG The registered company address is: Gewerbestrasse 11, 6330 Cham, Switzerland
Preface
If you have good eyes, the smallest objects you can make out are about a tenth of a millimeter, roughly the width of a human hair. Add technology, and the smallest structures we have measured so far are approximately 10−19 m, that is, the wavelength of the protons collided at the LHC. It has taken us about 400 years from the invention of the microscope to the construction of the LHC—400 years to cross 15 orders of magnitude. Quantum effects of gravity are estimated to become relevant on distance scales of approximately 10−35 m, known as the Planck length. That is another 16 orders of magnitude to go. It makes you wonder whether it is possible a
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