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Topic: Lee Smolin


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  Lee Smolin - Wikipedia, the free encyclopedia
Lee Smolin is a theoretical physicist who has made major contributions to loop quantum gravity.
Smolin is well known to researchers in quantum gravity for advocating that the two primary approaches to that subject, loop quantum gravity and string theory, may eventually be reconciled as different aspects of the same underlying theory.
Smolin was born in New York City and educated at Hampshire College and Harvard University.
en.wikipedia.org /wiki/Lee_Smolin   (244 words)

  
 [No title]
Smolin's view of the implications of quantum entanglement appears to be close (although not identical) to that of David Bohm, the inventor of the so-called hidden variables theory, which accounts (differently from the standard quantum theory) for the quantum data responsible for the introduction of quantum mechanics in the mid-1920s.
Smolin's conception of the (self-contained) whole universe is, I argue, a reinstatement of a certain form of Newtonianism, via Leibniz and Einstein; and here Leibniz or Einstein (or ultimately Smolin) and Newton are not quite as far apart as they are in their views of the particular nature or structure of the world.
Smolin's is a metaphysical-idealist vision of the universe as the Leibnizian relationalist wholeness, which, as we have seen, is not to say that it is the same as that of Leibniz himself.
jefferson.village.virginia.edu /pmc/text-only/issue.598/8.3.r_plotnitsky.txt   (8413 words)

  
 EDGE 3rd Culture: Stuart Kauffman & Lee Smolin Paper
The theoretical physicist Lee Smolin is interested in the problem of quantum gravityóof reconciling quantum theory with Einstein's gravitational theory, the theory of general relativity, to produce a correct picture of spacetime.
Lee Smolin's most important insight was to suggest a new way of looking at space and time in terms of a lattice structure on a tiny scale.
Smolin takes that idea on board, but then introduces another conjecture, which is that the laws of nature in the new universe are related to those in the previous universe.
www.edge.org /3rd_culture/smolin/smolin_p1.html   (1755 words)

  
 Amazon.com: Books: The Life of the Cosmos   (Site not responding. Last check: 2007-11-07)
Smolin was led to propose his theory of the evolution of the basic constants of nature because of the failure of physics (so far) to come up with a Grand Theory of Everything that predicts from basic principles the exact values of the basic constants.
Perhaps because Smolin is trying to appeal to a popular audience, I sometimes found his explanations lacking in depth - for example, the assertion that certain parameters that determine the composition of the universe and its hospitability to life are fine-tuned to an accuracy of one part in 10 to the 60th power.
Lee Smolin's opening description of the history and current state of theoretical physics is highly understandable and makes a more compelling (albeit unconscious) argument for Intelligent Design theory rather than his one of "Cosmic Natural Selection." What is interesting is professor Smolin's rejection a priori of any answer lying outside the realm of human observation.
www.amazon.com /exec/obidos/tg/detail/-/019510837X?v=glance   (2207 words)

  
 Book reviews: "Before the Beginning," "The Life of the Cosmos" and "Hunting Down the Universe"
Where Smolin goes into new territory is when he proposes that universes – like life forms – evolve from generation to generation, with each universe having slightly different characteristics from its parent in terms of particle mass and force strength.
Smolin's own book is also undercut by his at times harsh criticism of others for clinging to what he views as religious conceptualizations of creation.
Smolin's basic question throughout is "Why is it that our universe supports life?" He then guides the reader through the physical characteristics of our universe – mass of electrons and protons, strength of gravity and electromagnetism, and explains how altering their values even a minute percentage would make life impossible.
www.trageser.com /archive/books/bookreview-cosmology.html   (1972 words)

  
 New Physics Reviews 1, 1
Smolin's approach is operational and does not require decoherent consistent histories, Everett relative states or Bohm super quantum potentials, though these may add additional insights later on.
Smolin says there is a meaning to singularities and nonunitary loss of information at the nonperturbative level where the gravitational degrees of freedom are quantized with no classical background metric.
Smolin thinks it is important that the areas in quantum gravity are discrete and that this is a robust result independent of model details.
www.qedcorp.com /pcr/pcr/NPR1.htm   (3395 words)

  
 SS > NF reviews > Lee Smolin
Smolin overthrows the old, showing how the 20th century physical theories of general relativity and quantum mechanics lead to a picture of a vast, vibrant, complex self-organising universe, hospitable to life, growing, and exhibiting ever more variety.
Smolin sets out to explain three different routes to a theory of quantum gravity, and how they might all be leading to the same place, and does so brilliantly.
Smolin also discusses in detail the ideas of "background independent" theories -- ones where there is no framework of absolute time and space for particles to move against, but rather ones where space and time themselves are integral, evolving, changing parts of the cosmos, and in which there are no static things, only dynamic processes.
www-users.cs.york.ac.uk /~susan/bib/nf/s/smolin.htm   (1440 words)

  
 Luboš Motl's reference frame: Why no new Einstein?   (Site not responding. Last check: 2007-11-07)
While I agree with many of Smolin's points about the nature of Einstein's discoveries and with his call for independence, it is hard to subscribe to the policies he proposes or even the topics that should be supported by various agencies and "Einstein fellowships".
But Lee Smolin is definitely not right when he suggests that an original thinker can be identified by a small number of citations and papers.
Lee's papers are very clearly readable for me, so you can be sure that once he correctly and convincingly solves a big problem in quantum gravity, I will understand the framework of his solution one day after he submits it and the details will follow a week later.
motls.blogspot.com /2005/06/why-no-new-einstein.html   (3778 words)

  
 Amazon.co.uk: Books: Three Roads to Quantum Gravity (Science Masters)   (Site not responding. Last check: 2007-11-07)
Smolin, Carlo Rovelli and others took it over from there and applied quantum theory to Ashtekar's formulations and shaped the theory which came to be known as loop quantum gravity.
We are fortunate that Lee Smolin managed to take time out and present to us in lay person's terms how he and his associates are excited by their loop quantum gravity approach.
Lee Smolin is a rare animal so to speak as he admits that he can listen quite freely to String / M-Theorists and yet be quite at home sitting in on QM- Gravity lectures.
www.amazon.co.uk /exec/obidos/ASIN/0297643010   (1593 words)

  
 disinformation | lee smolin: the new einstein?   (Site not responding. Last check: 2007-11-07)
Smolin agrees--the aesthetic discipline and intellectual rigor that is required by post-quantum physics may be the perfect antidote to the extreme relativism and subtle reductionism of some postmodern exponents.
Lee Smolin is currently an associate of the University of Pittsburgh's Center for the Philosophy of Science.
Smolin explains why he perceives the structure of space-time as lattices, the possibility for region variations and the implications for cosmology.
www.disinfo.com /archive/pages/dossier/id461/pg1   (2661 words)

  
 LEE SMOLIN -- EINSTEIN'S LEGACY--WHERE ARE THE "EINSTEINIANS"? -- LOGOS 4.3 SUMMER 2005
LEE SMOLIN -- EINSTEIN'S LEGACY--WHERE ARE THE "EINSTEINIANS"?
Lee Smolin, a theoretical physicist, is founding member of and research at th Perimeter Institute, Waterloo, Canada.
Smolin is the author of many scientific and general publications, including The Life of the Cosmos and Three Roads to Quantum Gravity.
www.logosjournal.com /issue_4.3/smolin.htm   (3462 words)

  
 Three Roads to Quantum Gravity, Basic Books, Lee Smolin
...Smolin ably explains concepts that underlie quantum gravity, such as background independence, the superposition principle, and the notion of causal structure, and he traces the development of allied theories that have shaped modern physics and led to this new view of the universe.
Lee Smolin explains what the problem is, a very complex one, and how a string parallel drawn.
Smolin's presentation of the three theories was so thought provoking for me that I realized that I wanted to learn more.
allentech.net /techstore/item_0465078354.html   (1810 words)

  
 Theories of Everything   (Site not responding. Last check: 2007-11-07)
Elsewhere, Smolin seems to suggest that the discovery of the youth of the universe comes as a challenge to traditional theology.
Smolin criticizes the "nostalgia for the absolute Newtonian universe" as "the desire to be able to see the universe from outside, as a disembodied observer." I like that, but in my judgment Smolin’s vision is dimmed by the same mote.
Smolin is a prophet of the vestigia Trinitatis, the "traces of the Trinity" that Augustine said are woven into the fabric of created, especially human, forms of existence.
www.firstthings.com /ftissues/ft9808/opinion/leithart.html   (1149 words)

  
 Book Review for Life of the Cosmos
So if Lee Smolin is correct, his name will be added to the short list of scientific greats.
Lee Smolin offers three answers: (1) a supreme being who can twiddle the dials that control our Universe (2) a unique theory and (3) a natural process similar to organic evolution.
Smolin imagines that, when matter falls in upon itself to form a fl hole, a rebound occurs that spawns one or more new universes.
www.jupiterscientific.org /review/loc.html   (2999 words)

  
 A maverick's quest for quantum gravity (December 2000) - Review - PhysicsWeb   (Site not responding. Last check: 2007-11-07)
Smolin has himself worked in the field of quantum gravity for the last 25 years, but it is fair to say that his ideas have always remained outside the mainstream.
The second road Smolin describes is "loop" quantum gravity, the road that he himself walked for many years (see "The new universe around the next corner" by Lee Smolin Physics World December 1999 pp79-84).
Smolin is not one to heed such warnings, however.
physicsweb.org /article/review/13/12/9   (1012 words)

  
 Metanexus Institute
These questions (as well as others, of course!) are addressed to Lee Smolin by Jill Neimark in today's column titled "A Talk On The Nature and Future of The Universe".
This interview with Lee Smolin kicks off a series of dialogues with physicists and cosmologists about the nature and future of the universe.
Lee Smolin is a theoretical physicist, professor at Pennsylvania State University, and member of the Center for Gravitational Physics and Geometry.
www.metanexus.net /metanexus_online/show_article.asp?5115   (2139 words)

  
 base
Lee Smolin is a theoretical physicist who has contributed to the unification of quantum theory and space and time.
Born in New York City, Lee Smolin was educated at Hampshire College and Harvard University.
Lee has an avid interest as well in philosophy, political theory, and the visual arts and, when he can, sails and plays jazz guitar.
www.subtletechnologies.com /2003/smolin.html   (247 words)

  
 Lee Smolin's Three Roads to Quantum Gravity
I just published a Critical Review (of Chapter 1) of Lee Smolin's Three Roads to Quantum Gravity: http://home.att.net/~agorgun/CPsmln.htm Here's a summary: A summary of Smolin's Attempt to Rationalize His Mythological Cosmos: Smolin's definition of the universe is: Universe is everything that exists.
Smolin claims that he can deduce from SCP that the universe is a closed system.
Therefore, Smolin's cosmological principle leads to the denial of cosmology as a scientific discipline, which reduces his speculations to mythology.
www.lns.cornell.edu /spr/2001-12/msg0037799.html   (310 words)

  
 The Life of the Cosmos by Lee Smolin
Smolin's assertion is that the universe is a product of cumulative natural selection similar to the biology of life on this planet.
Smolin's ideas are based on recent developments in cosmology, quantum theory, relativity and string theory, yet they offer, at the same time, a completely new view of how these developments may fit together to form a new theory of cosmology.
Lee Smolin is one of the leading cosmologists at work today, and he writes with an expertise and force of argument that will command attention throughout the world of physics.
www.2think.org /lifeofthecosmos.shtml   (1794 words)

  
 Newslet. 58   (Site not responding. Last check: 2007-11-07)
For this case, Smolin quotes Bill Unruh's law: Accelerating observers see themselves as embedded in a gas of hot photons at a temperature proportional to their acceleration (Smolin 2001, 86).
Although Smolin gives a brief exposition of string theory, we will skip it, and proceed to chapter 12 where "holographic principle" is discussed.
Smolin takes up the holographic principle (also discussed by Greene) as a possible candidate for such unification.
www.bun.kyoto-u.ac.jp /phisci/Newsletters/newslet_58.html   (4402 words)

  
 Guardian Unlimited Books | By genre | Review: Three Roads to Quantum Gravity by Lee Smolin
But as physicist Lee Smolin writes in Three Roads to Quantum Gravity, some of the newest ideas in physics are pointing to a surprising answer: space and time do indeed appear to be made out of such atoms.
Smolin has been one of the leading figures in recent efforts to bring together two of the most far-reaching scientific theories of our age.
But if Smolin is right, these three strands complement one another, and physicists will soon weave them together to complete the revolution kicked off by relativity and quantum theory.
books.guardian.co.uk /reviews/scienceandnature/0,6121,438833,00.html   (801 words)

  
 Amazon.co.uk: Books: The Life of the Cosmos   (Site not responding. Last check: 2007-11-07)
In The Life of the Cosmos, Lee Smolin offers a theory of the universe that is radically different from anything proposed before.
Smolin ventures into dimentions and elementary particles with a highly detailed analysis of the smallest things in the universe but sometimes lacks a wide overview.
Smolin writes with clarity and manages to engage the reader with the wonder at the heart of physics without the use of laboured attempts at poetry.
www.amazon.co.uk /exec/obidos/ASIN/0195126645   (805 words)

  
 Future Progress: December 2004
In his talk, Smolin offers observations from the cross-section of what we define to be computation and what we know of physics (a greater understanding can be obtained from his writings, specifically he seems in this video to refer to notions from this paper).
Three types of physicist; those that believe in a universe that computes through the migration of "information," those that have no idea what the hell that means and those that also have no idea but assume that a computational universe perspective might do well for the field of physics.
Smolin assigns himself to that latter of the three and proceeds to talk about evidence for such a perspective in the form of a Beckenstein Bound (BB) and the Holographic Principle (HP).
www.futureprogress.net /2004_12_01_futureprogress_archive.html   (564 words)

  
 smolin
Smolin has the ambitious goal of explaining the problems that confront the new generation of theoretical physicists and cosmologists, and proposes his own ideas towards their solution.
Smolin argues that quantum effects may come into play to remove this singularity and the collapsing fl hole "bounces" back into an expansion.
Smolin suggests that inside each fl hole is a new expanding Universe with fl holes.
www.dhushara.com /book/quantcos/smolin.htm   (520 words)

  
 Alibris: Lee Smolin
A distinguished scientist presents the main ideas behind the new developments that have brought a quantum theory of gravity in sight.
Smolin explains in simple terms what scientists are talking about when they say the world is made from exotic entities, such as loops and fl holes, and tells the stories behind the discoveries.
Cosmologist Lee Smolin offers a startling new theory of the universe that is at once elegant, comprehensive, and radically different from anything proposed before, arguing that the laws of nature may be subject themselves to natural selection.
www.alibris.com /search/books/author/Lee_Smolin   (192 words)

  
 Countrybookshop.co.uk - Three Roads to Quantum Gravity
In this book, Lee Smolin provides an overview of current attempts to reconcile these theories.
Here, Lee Smolin provides the first accessible overview of current attempts to reconcile these two theories.
Smolin believes that each of these different approaches may be partially right, although he contends that none on its own is likely to be the whole truth.
www.countrybookshop.co.uk /books/index.phtml?whatfor=0753812614   (316 words)

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