The Universe of Fluctuations: The Architecture of Spacetime and the Universe

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Springer Science & Business Media, 29 d’ag. 2005 - 194 pàgines
In 1997, contrary to the ruling paradigm which was that of a dark matter ?lled, decelerating universe, my work pointed to a dark energydriven- celerating universe with a small cosmological constant. Moreover, the many supposedly accidental Large Number relations in cosmology, including the mysterious Weinbergformula were now deduced from the theory. Obser- tionalcon?rmationforthisscenariocamein1998,whiledarkenergyitselfwas ?nally recon?rmed in 2003, thanks to the Wilkinson Microwave Anisotropy Probe and the Sloan Digital Sky Survey. The 1997, and subsequent work was the consequence of mainly three cons- erations: dark energy or the well known Zero Point Field, fuzzy spacetime and ?uctuations. Indeed String Theory and Quantum Gravity approaches have had to discard the smooth spacetime of General Relativity and Qu- tum Field Theory, in a quest for a uni?ed description of these two pillars of twentieth century physics. This book is the result of some seventy ?ve papers published in international journals,andpartlyanearlierbook,”TheChaoticUniverse:FromthePlanck to the Hubble Scale” (Nova Science, New York, 2001), as also several lectures delivered in Universities and institutes in the United States, Canada and - rope. It describes how, in a simple and somewhat conventional framework, an underpinning of Planck scale oscillators in the ubiquitous Zero Point Field or dark energy leads to a uni?ed description of phenomena involving elementary particles and the cosmos. In particular, apart from the cosmology mentioned above, these considerations lead to a uni?ed description of all interactions, includinggravitation, thoughinanextended gauge ?eld treatment.
 

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Continguts

1 THE UNIFICATION PARADIGM
1
12 Inertial Mass
5
13 Enter General Relativity
10
14 Further Considerations
13
15 Prospect
19
2 STANDARD MODELS OF PHYSICS AND COSMOLOGY
21
22 Gauge Fields
24
23 Standard Cosmology
27
63 Issues and Ramifications
82
65 Further Considerations
106
66 A Final Comment
113
7 QUANTUM GEOMETRY
117
73 Gauge Fields
119
74 Quantum Geometry
122
8 HOW FUNDAMENTAL IS GRAVITATION?
127
82 Interrelationships
130

QUANTUM SUPERSTRINGS AND QUANTUM GRAVITY
31
32 Loop Quantum Gravity
36
4 OTHER APPROACHES
39
42 Quantum General Relativity
40
43 Scale Relativity
42
5 FUZZY SPACETIME AND THE PLANCK SCALE
45
52 Further Considerations
47
53 Quantum Geometry
51
54 The Unification of Gravitation and Electromagnetism
55
55 The Planck Scale
58
56 The Universe as Planck Oscillators
62
57 Modelling Fuzzy Spacetime as a Double Wiener Process
64
58 Other Issues
65
6 THE UNIVERSE OF FLUCTUATIONS
73
62 Dark Energy and Fluctuations
76
83 Comments
135
84 Gravitation as Weak Electromagnetism
137
9 THE ELUSIVE MASS SPECTRUM
145
10 EXPERIMENTAL EFFECTS
157
102 Modified Dispersion
158
103 Particle Behaviour
159
104 A New Short Range Force
160
105 Gravitational Effects
162
106 Bosons as Bound States of Fermions
164
107 Can we Harness the Zero Point Field?
166
108 Retrospect
167
References
169
Index
181
Copyright

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Sobre l'autor (2005)

B.G. Sidharth got his B.Sc. (Mathematics Honors), M.Sc. and PhD from Calcutta University. After working for several years in Quantum Scattering, Dr. Sidharth’s work entered on the fundamental problems facing Physics today. His 1997 papers, contrary to the ruling paradigm, predicted a dark energy driven accelerating Universe with a small cosmological constant. Remarkably, this was confirmed in 1998. His work deals with fuzzy spacetime and the unification of interactions and similar problems within this context. Besides a large number of research publications in international journals, Dr. Sidharth also authored and edited a number of books. In addition he has lectured widely in the United States, Canada, Europe and other places.

B.G. Sidharth is the founder-director of the B.M. Birla Science Centre, Hyderabad, India, and its constituent, the International Institute for Applicable Mathematics and Information Sciences, Hyderabad, and Udine, Italy. He was associated with the International Center for Theoretical Physics, Trieste, Italy, for many years having been a Senior Associate. Dr. Sidharth is on the Editorial / Advisory boards of international journals, institutes and award committees. Last but not least he played host to many Nobel Laureates and other physicists of World importance.

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