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The 2011 Nobel Prize in Physics was awarded for the discovery of
cosmic acceleration due to dark energy, a discovery that is all the
more perplexing as nobody knows what dark energy actually is. We
put the modern concept of cosmological vacuum energy into
historical context and show how it grew out of disparate roots in
quantum mechanics (zero-point energy) and relativity theory (the
cosmological constant, Einstein's "greatest blunder"). These two
influences have remained strangely aloof and still co-exist in an
uneasy alliance that is at the heart of the greatest crisis in
theoretical physics, the cosmological-constant problem.
'For those interested, the book is a good and well-written overview
of the work of Wesson and his collaborators. For those with a
general interest in extensions of standard physics, accessibility
is strongly dependent on the readeraEURO (TM)s technical
background, though the good structure of the book and copious
references (including many to work by more-mainstream physicists on
related topics) make that possible for those willing to invest some
time.'The Observatory MagazineThis book is a summing up of the
prospects for unification between relativity and particle physics
based on the extension of Einstein's theory of General Relativity
to five dimensions. This subject was first established by Paul
Wesson in his previous best-seller, Space-Time-Matter, and
discussed from a different perspective in Five-Dimensional Physics,
both published by World Scientific in 1999 and 2006 respectively.
This third book brings the field up to date and details many new
developments and connections to particle theory and wave mechanics
in particular. It was in largely finished form at the time of Paul
Wesson's untimely death in 2015, and has been completed and
expanded by his former student and longtime collaborator, James
Overduin.
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