Category Archives: Einstein

What Cosmologist Wants From String theory

Posted on December 24, 2004 by PlatoHagel

The most surprising difference for the quantum case is the so-called zero-point vibration” of the n=0 ground state. This implies that molecules are not completely at rest, even at absolute zero temperature. When I looked at the issues strings presented … Continue reading →

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Dilation and the Cosmic String

Posted on December 19, 2004 by PlatoHagel

One such field, called the dilaton, is the master key to string theory; it determines the overall strength of all interactions. The dilaton fascinates string theorists because its value can be reinterpreted as the size of an extra dimension of … Continue reading →

Posted in Dimension, Einstein, General Relativity, Gravity, Non Euclidean, String Theory, Symmetry, Time Travel, Veneziano | Tagged , , , , , , , , | Leave a comment

Catch a Wave From Space

Posted on December 17, 2004 by PlatoHagel

Imagine the journey it took for us to have come to the developement of the methods to discern the nature of the Universe, and what Einstein has done for us in terms of General Relativity. A statement, about Gravity. Imagine … Continue reading →

Posted in Black Holes, Cosmic Strings, Einstein, General Relativity, Gravity, LIGO | Tagged , , , , , | Leave a comment

Curvature Parameters

Posted on December 14, 2004 by PlatoHagel

How does get this intuitive feeling embedded within thinking if it has not grokked the significance on a cosmological scale? When one first begins to comprehend the intuitive possibilities the universe can move through, I was was struck, by the … Continue reading →

Posted in Curvature Parameters, dark energy, dark matter, Einstein, Gauss, geometries, Gravity, M Theory, Non Euclidean, Quantum Gravity, WMAP | Tagged , , , , , , , , , , | Leave a comment

THE ANTHROPIC PRINCIPLE

Posted on December 9, 2004 by PlatoHagel

The String Theory Landscape, by Raphael Bousso and Joseph Polchinski Given the success of replacing the gravitational force with the dynamics of space and time, why not seek a geometric explanation for the other forces of nature and even for … Continue reading →

Posted in Dimension, Einstein, geometries, Glast, Graviton, Gravity, Kaluza, Landscape, M Theory, Mathematics, Particles, Quantum Gravity, Raphael Bousso, Smolin, String Theory, Susskind | Tagged , , , , , , , , , , , , , , , | Leave a comment

Quantum Geometry

Posted on December 9, 2004 by PlatoHagel

Mathematics is not the rigid and rigidity-producing schema that the layman thinks it is; rather, in it we find ourselves at that meeting point of constraint and freedom that is the very essence of human nature. – Hermann Weyl I … Continue reading →

Posted in Brian Greene, Einstein, Elephant, General Relativity, geometries, Gravity, Loop Quantum, M Theory, Mathematics, Quantum Gravity, Smolin, String Theory, Susskind, Topology, Witten | Tagged , , , , , , , , , , , , , , | Leave a comment

Quantum Mechanical Discription of the Spacetime Fabric

Posted on December 8, 2004 by PlatoHagel

Richard Feynman developed the path integral formulation of quantum mechanics in 1948 (some preliminaries were worked out earlier, in the course of his doctoral thesis work with John Archibald Wheeler) as a description of quantum theory corresponding to the action … Continue reading →

Posted in Brian Greene, Dimension, Earth, Einstein, Gravity, Kaluza, Mathematics, Photon, Quantum Gravity, String Theory, Summing over Histories | Tagged , , , , , , , , , , , | Leave a comment

What Do We Mean When We Say "Continuum"?

Posted on December 7, 2004 by PlatoHagel

Here’s a description Albert Einstein gave on p. 83 of his Relativity: The Special and the General Theory: The surface of a marble table is spread out in front of me. I can get from any one point on this … Continue reading →

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The Elastic Nature?

Posted on December 5, 2004 by PlatoHagel

As I have explained in a earlier link I am fascinated by the images of bubbles that were demonstrated through a way of thinking of the early universe to arise as Bubble Nucleation. These images all show the 2-, 3-, … Continue reading →

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Quantum Microstates: Gas Molecules in the Presence of a Gravitational Field

Posted on December 4, 2004 by PlatoHagel

Andy Strominger: This was a field theory that lived on a circle, which means it has one spatial dimension and one time dimension. We derived the fact that the quantum states of the black hole could be represented as the … Continue reading →

Posted in Black Holes, Boltzmann, Dimension, Einstein, Entropy, General Relativity, Gravity, Microscopic Blackholes, Quantum Gravity, String Theory | Tagged , , , , , , , , , , | Leave a comment