Universit´e de Montr´eal Towards a Philosophical Reconstruction of the Dialogue between Modern Physics and Advaita Ved¯anta: An Inquiry into the Concepts of a¯ka¯´sa, Vacuum and Reality par Jonathan Duquette Facult´e de th´eologie et de sciences des religions Th`ese pr´esent´ee `a la Facult´e des ´etudes sup´erieures en vue de l’obtention du grade de Philosophiae Doctor (Ph.D.) en sciences des religions Septembre 2010 c Jonathan Duquette, 2010 (cid:13) Universit´e de Montr´eal Facult´e des ´etudes sup´erieures et postdoctorales Cette th`ese intitul´ee: Towards A Philosophical Reconstruction of the Dialogue between Modern Physics and Advaita Ved¯anta: An Inquiry into the Concepts of ¯ak¯a´sa, Vacuum and Reality pr´esent´ee par: Jonathan Duquette a ´et´e ´evalu´ee par un jury compos´e des personnes suivantes: Patrice Brodeur, pr´esident-rapporteur Trichur S. Rukmani, directrice de recherche Normand Mousseau, codirecteur de recherche Solange Lefebvre, membre du jury Varadaraja Raman, examinateur externe Karine Bates, repr´esentante du doyen de la FESP ii Abstract Towardtheendofthe19thcentury, theHindumonkandreformerSwamiVivekananda claimed that modern science was inevitably converging towards Advaita Ved¯anta, an important philosophico-religious system in Hinduism. In the decades that followed, in the midst of the revolution occasioned by the emergence of Einstein’s relativity and quantum physics, a growing number of authors claimed to discover striking “par- allels” between Advaita Ved¯anta and modern physics. Such claims of convergence have continued to the present day, especially in relation to quantum physics. In this dissertation, an attempt is made to critically examine such claims by engaging a de- tailed comparative analysis of two concepts: ¯ak¯a´sa in Advaita Ved¯anta and vacuum in quantum physics. What is examined is the claim that both concepts would refer to the same reality — an enduring, subtle and all-pervading physical substratum out of which the constituents of the world come into existence and to which they ulti- mately return. Based on this study, the dissertation argues that comparisons relying on conceptual affinities alone generally fall short of establishing a productive dia- logue between Advaita Ved¯anta and modern physics. Another approach is to bring into focus the epistemological limits respectively encountered by these systems when attempting to define the content of “reality-in-itself” or “ultimate reality.” Emphasis is given to epistemology and the problem of reality in Advaita Ved¯anta, and scientific realism and philosophical implications of nonseparability in quantum physics. Keywords: Dialogue;NaturalSciences; EasternSpiritualTraditions; AdvaitaVed¯an- ta; Modern Physics; Philosophy of science; ¯ak¯a´sa; Vacuum; Reality; Epistemology. iii R´esum´e Vers la fin du 19`eme si`ecle, le moine et r´eformateur hindou Swami Vivekananda affirma que la science moderne convergeait vers l’Advaita Ved¯anta, un important courant philosophique et religieux de l’hindouisme. Au cours des d´ecennies suiv- antes, suite aux apports scientifiques r´evolutionnaires de la th´eorie de la relativit´e d’Einstein et dela physique quantique, unnombrecroissant d’auteurssoutenaient que d’importants “parall`eles” pouvaientˆetretrac´es entre l’Advaita Ved¯anta et la physique moderne. Encore aujourd’hui, de tels rapprochements sont faits, particuli`erement en relation avec la physique quantique. Cette th`ese examine de mani`ere critique ces rapprochements `a travers l’´etude comparative d´etaill´ee de deux concepts: le concept d’¯ak¯a´sa dans l’Advaita Ved¯anta et celui de vide en physique quantique. L’´enonc´e ex- amin´e est celui selon lequel ces deux concepts pointeraient vers une mˆeme r´ealit´e: un substratum omnipr´esent et subtil duquel ´emergent et auquel retournent ultimement les divers constituants de l’univers. Sur la base de cette ´etude comparative, la th`ese argumente que des comparaisons de nature conceptuelle favorisent rarement la mise en place d’un v´eritable dialogue entre l’Advaita Ved¯anta et la physique moderne. Une autre voie d’approche serait de prendre en consid´eration les limites ´epist´emologiques respectivement rencontr´ees par ces disciplines dans leur approche du “r´eel-en-soi” ou de la “r´ealit´e ultime.” Une attention particuli`ere sera port´ee sur l’´epist´emologie et le probl`eme de la nature de la r´ealit´e dans l’Advaita Ved¯anta, ainsi que sur le r´ealisme scientifique etlesimplicationsphilosophiques delanon-s´eparabilit´eenphysique quan- tique. Mots-cl´es: Dialogue; Sciences naturelles; Traditions spirituelles orientales; Advaita Ved¯anta; Physiquemoderne; Philosophiedessciences; ¯ak¯a´sa;Vide; R´ealit´e; E´pist´emo- logie. iv Contents Abstract ii R´esum´e iii Contents iv List of Figures vii Abbreviations viii Acknowledgments ix Preface xii 1 Introduction 1 2 Eastern Spiritual Traditions and Quantum Physics 15 2.1 Nature of the Parallels . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.1.1 The Role of the Observer . . . . . . . . . . . . . . . . . . . . . 21 2.1.2 Holism in Quantum Physics . . . . . . . . . . . . . . . . . . . 29 ¯ 2.1.3 Ak¯a´sa, Fields and Quantum Vacuum . . . . . . . . . . . . . . 37 2.2 Hopes and Pitfalls of Parallelism . . . . . . . . . . . . . . . . . . . . 44 CONTENTS v 2.2.1 Parallelism in Practice . . . . . . . . . . . . . . . . . . . . . . 45 2.2.2 Convergence, Conflict or Independence? . . . . . . . . . . . . 51 3 The Vacuum in Modern Science 61 3.1 The Vacuum: From the Milesians to Einstein . . . . . . . . . . . . . . 63 3.1.1 Greek Speculations About Vacuum . . . . . . . . . . . . . . . 64 3.1.2 Vacuum as a Physical Entity . . . . . . . . . . . . . . . . . . . 67 3.1.3 Vacuum as a Medium . . . . . . . . . . . . . . . . . . . . . . . 72 3.1.4 Vacuum in the Theory of Relativity . . . . . . . . . . . . . . . 78 3.2 Vacuum in Quantum Field Theory . . . . . . . . . . . . . . . . . . . 82 3.2.1 The Wave-Particle Duality . . . . . . . . . . . . . . . . . . . . 84 3.2.2 Interpretations of the Wavefunction . . . . . . . . . . . . . . . 89 3.2.3 Ontology in Quantum Field Theory . . . . . . . . . . . . . . . 94 3.2.4 The Quantum Vacuum . . . . . . . . . . . . . . . . . . . . . . 102 3.3 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 4 A¯ka¯´sa in Hindu Schools of Thought 115 4.1 Textual Sources in Vedic Literature . . . . . . . . . . . . . . . . . . . 119 4.1.1 Early reflections about bhu¯tas . . . . . . . . . . . . . . . . . . 121 4.1.2 A¯k¯a´sa in the Upani.sads . . . . . . . . . . . . . . . . . . . . . 129 ¯ 4.2 Ak¯a´sa in the Hindu dar´sanas . . . . . . . . . . . . . . . . . . . . . . 139 4.2.1 The Vai´ses.ika dar´sana . . . . . . . . . . . . . . . . . . . . . . 142 4.2.2 The S¯am. khya dar´sana . . . . . . . . . . . . . . . . . . . . . . 151 4.3 The Advaita Ved¯anta dar´sana . . . . . . . . . . . . . . . . . . . . . . 160 4.3.1 Nature and Knowledge of Brahman . . . . . . . . . . . . . . . 163 CONTENTS vi 4.3.2 Cosmological Insights into Advaita Ved¯anta . . . . . . . . . . 175 4.3.3 A¯k¯a´sa in Advaita Ved¯anta . . . . . . . . . . . . . . . . . . . . 186 4.4 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 5 Analysis and Proposal for Dialogue 211 5.1 Comparative Analysis: Quantum vacuum and ¯ak¯a´sa . . . . . . . . . . 212 5.1.1 Analogies and Parallels: A Critical Analysis . . . . . . . . . . 214 5.1.2 Epistemological Boundary . . . . . . . . . . . . . . . . . . . . 234 5.2 Modern Physics and Advaita Ved¯anta . . . . . . . . . . . . . . . . . . 249 5.2.1 Scientific Realism and Limits of Knowledge . . . . . . . . . . . 250 5.2.2 Nonseparability and d’Espagnat’s Ontological Reality . . . . . 259 5.2.3 An Integral Perspective to Dialogue . . . . . . . . . . . . . . . 269 Conclusion 287 Bibliography 293 1. Primary Sources in Indian Philosophy . . . . . . . . . . . . . . . . . . . 293 2. Indian Philosophy and Eastern Spiritual Traditions . . . . . . . . . . . . 294 3. Modern Science and Eastern Spiritual Traditions . . . . . . . . . . . . . 299 4. Science, Religion and Western Philosophy . . . . . . . . . . . . . . . . . 304 5. Physics and Philosophy of Science . . . . . . . . . . . . . . . . . . . . . 305 6. Orientalism and Comparative Studies . . . . . . . . . . . . . . . . . . . 313 vii List of Figures 3.1 The experiment on vacuum made by Torricelli . . . . . . . . . . . . . 69 3.2 The double-slit experiment in quantum physics . . . . . . . . . . . . 88 3.3 Example of a Feynman diagram . . . . . . . . . . . . . . . . . . . . . 105 4.1 The evolution process in S¯am. khya . . . . . . . . . . . . . . . . . . . . 155 4.2 The pan˜c¯ıkaran.a model in Ved¯anta . . . . . . . . . . . . . . . . . . . 182 5.1 Bernard d’Espagnat’s scheme for his “veiled reality” thesis . . . . . . 267 5.2 Two ways of relating physics and Advaita Ved¯anta . . . . . . . . . . 275 5.3 The Great Chain of Being . . . . . . . . . . . . . . . . . . . . . . . . 279 5.4 Map serving as a dialogical basis . . . . . . . . . . . . . . . . . . . . 284 viii Abbreviations AitBr Aitareya Br¯ahman.a RV R. gveda AU Aitareya Upani.sad SB Siddh¯antabindu BhG Bhagavad-G¯ıt¯a S´Br S´atapatha Br¯ahman.a BS Brahmasu¯tra SK S¯am. khyak¯arik¯a BrU Br.had¯aran.yaka Upani.sad SPB S¯am. khyapravacanabh¯a.sya BSB Brahmasu¯trabh¯a.sya TU Taittir¯ıya Upani.sad ChU Ch¯andogya Upani.sad Upad Upade´sas¯ahasr¯ı KaU Ka.tha Upani.sad VP Ved¯anta Paribh¯a.s¯a KsU Kau.s¯ıtaki Upani.sad VS Vai´se.sikasu¯tras MaU M¯an.d.u¯kya Upani.sad MtU Maitr¯ı Upani.sad NS Nya¯yasu¯tras PD Pan˜cada´s¯ı PaU Pain˙gala Upanis.ad PDS Pad¯arthadharmasam. graha PU Pra´sna Upani.sad QFT Quantum field theory
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