Witten, E. , <<String Theory Dynamics in Various Dimensions>>, http:///abs/hep-th/9503124 Hull, C. - Townsend, P , <<Unity of Superstring Dualities>>, http:///abs/hep-th/9410167 Smolin Lee. <The Trouble with Physics>(简体中文译本<物理学的困惑>),ISBN 9787535752406 一些说明 爱因斯坦...
string theory n. A theory in physics in which tiny stringlike objects have modes of vibration that correspond to elementary particles. Such objects exist in a spacetime that has more dimensions than the familiar three dimensions of space, some of which are thought to be exceedingly small. Strin...
2 Extra Dimensions (in String Theory) - What does it mean? 3 Are there versions of String Theory formulated in DD spacetime dimensions or even in infinitely many dimensions? 4 Action dimensions in string theory 2 Do we have an upper bound to the size of the six hypothetic...
We show that tree level open two dimensional string theory is exactly\nsolvable; the solution exhibits some unusual features, and is qualitatively\ndifferent from the closed case. The open string ``tachyon'' S -- matrix\ndescribes free fermions, which can be interpreted as the quarks at the...
su·per·string theory (so͞o′pər-strĭng′) A type of string theory in which both the particles that transmit forces (such as the photon, which carries the electromagnetic force) and the particles that make up matter (such as the proton) are viewed as string-like objects floating...
Model with the theory of quantum mechanics and gravity so that the entire universe would be described by one grand theory. In the physical world, four dimensions are experienced: three dimensions of space plus one dimension of time. String theory predicts that th...
String theory predicts ten total spacetime dimensions, but we clearly live in a world with four dimensions (three space and one time)! Thankfully, it is not a problem to get from ten to four. Six of the dimensions predicted by string theory could be wrapped into a small compact shape. ...
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-97-Physics 21stCentury Unit StringTheory ExtraDimensions Introduction Our job seethings simply, greatmany complicated phenomena, fewsimple principles. StevenWeinberg, Nobel Prize Lecture, 1979 General relativity, introduced hasbeen enormously successful explaininghow masses interact eachother through veryfabric...
``String Theory in Four Dimensions'' contains a representative collection of papers dealing with various aspects of string phenomenology, including compactifications on smooth manifolds and more general conformal field theories. Together with the lucid introduction by M. Dine, this material gives the re...