"GSO projection"의 두 판 사이의 차이
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imported>Pythagoras0 |
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==introduction== | ==introduction== | ||
| + | * The GSO projection not only eliminates the tachyon in the bosonic NS sector but also yields the same number of bosonic and fermionic states at each mass level. | ||
* The GSO projection of the RNS model yields a ten-dimensional string theory, called superstring theory, which is supersymmetric in spacetime and does not contain tachyons. | * The GSO projection of the RNS model yields a ten-dimensional string theory, called superstring theory, which is supersymmetric in spacetime and does not contain tachyons. | ||
| + | * Gliozzi, Scherk and Olive obtained for the first time a string theory without tachyons. | ||
* The RNS formalism has spacetime supersymmetry after projecting out half of the states using the GSO projection. However, it is not manifestly supersymmetric. Green and Schwarz, using the light-cone gauge, have given a formulation with manifest spacetime supersymmetry | * The RNS formalism has spacetime supersymmetry after projecting out half of the states using the GSO projection. However, it is not manifestly supersymmetric. Green and Schwarz, using the light-cone gauge, have given a formulation with manifest spacetime supersymmetry | ||
2019년 11월 25일 (월) 07:26 판
introduction
- The GSO projection not only eliminates the tachyon in the bosonic NS sector but also yields the same number of bosonic and fermionic states at each mass level.
- The GSO projection of the RNS model yields a ten-dimensional string theory, called superstring theory, which is supersymmetric in spacetime and does not contain tachyons.
- Gliozzi, Scherk and Olive obtained for the first time a string theory without tachyons.
- The RNS formalism has spacetime supersymmetry after projecting out half of the states using the GSO projection. However, it is not manifestly supersymmetric. Green and Schwarz, using the light-cone gauge, have given a formulation with manifest spacetime supersymmetry
RNS model and its spectrum