منابع مشابه
A hierarchy of superstrings.
We construct a hierarchy of supersymmetric string theories by showing that the general N -extended superstrings may be viewed as a special class of the (N + 1)-extended superstrings. As a side result, we nd a twisted (N + 2) superconformal algebra realized in the N -extended string. e-mail address: [email protected] e-mail address: [email protected], [email protected] Permanent a...
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We generalize the method of quantizing effective strings proposed by Polchinski and Strominger to superstrings. The Ramond-Neveu-Schwarz string is different from the Green-Schwarz string in non-critical dimensions. Both are anomaly-free and Poincare invariant. Some implications of the results are discussed. The formal analogy with 4D (super)gravity is pointed out.
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We argue why it is important to search beyond the superstring for consistent string theories that have space-time supersymmetry with critical space-time dimensions less than 10. We give a lengthy introduction on the motivation and approach. We discuss briefly some promising possibilities, namely, fractional superstrings. More specifically, we consider the K = 4, or spin-4/3 fractional superstri...
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In theories with TeV scale quantum gravity the standard model particles live on a brane propagating in large extra dimensions. Branes may be stabilized at large (sub-millimeter) distances from each other, either due to weak Van der Waals type interactions, or due to an infrared analog of Witten’s inverse hierarchy scenario. In particular, this infrared stabilization may be responsible for a lar...
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L Introduction. The fermionic string has been proposed as a unified theory of matter interacting through gauge and gravitational forces. Attractive features of string theory include the rich massless particle spectrum containing a graviton, gauge vectors and chiral fermions spacetime supersymmetry, and most hkely finiteness as well. String theory is remarkably restricted. Internal consistency f...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1994
ISSN: 0031-9007
DOI: 10.1103/physrevlett.73.1199