"GSO projection"의 두 판 사이의 차이

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(새 문서: ==introduction== * 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 tac...)
 
 
(사용자 2명의 중간 판 5개는 보이지 않습니다)
1번째 줄: 1번째 줄:
 
==introduction==
 
==introduction==
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* 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.
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* 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
  
  
 
==RNS model and its spectrum==
 
==RNS model and its spectrum==
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* These efforts extended from the independent attempts of Lovelace and Shapiro to obtain the amplitude for the scattering of four pions to the construction of dual models for the scattering of particles with internal symmetry and with spin.
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* [[Ramond–Neveu–Schwarz model]]
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* The first dual model including fermions was obtained by Ramond, as well as the immediately following model proposed by Neveu and Schwarz for extending the Lovelace–Shapiro amplitude to an arbitrary number of pions.
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* The Ramond and Neveu–Schwarz models were soon recognized as the two sectors, fermionic and bosonic, of the same model, called the Ramond–Neveu–Schwarz (RNS) model.
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* The spectrum contains both fermions and bosons, and is much richer than that of the dual resonance model. Unfortunately, it still contains a tachyon.
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==related items==
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* Nevertheless, it was soon recognized, first by Gervais and Sakita, that the RNS model had a new kind of symmetry relating bosons and fermions. This was the first occurrence of supersymmetry.
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* [[Ramond–Neveu–Schwarz model]]
  
  
15번째 줄: 17번째 줄:
 
* [http://www-fp.usc.es/%7Eedels/Strings/Lect7Str.pdf http://www-fp.usc.es/~edels/Strings/Lect7Str.pdf]
 
* [http://www-fp.usc.es/%7Eedels/Strings/Lect7Str.pdf http://www-fp.usc.es/~edels/Strings/Lect7Str.pdf]
 
* http://en.wikipedia.org/wiki/GSO_projection
 
* http://en.wikipedia.org/wiki/GSO_projection
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[[분류:string theory]]
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[[분류:migrate]]
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==메타데이터==
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===위키데이터===
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* ID :  [https://www.wikidata.org/wiki/Q611375 Q611375]
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===Spacy 패턴 목록===
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* [{'LOWER': 'gso'}, {'LEMMA': 'projection'}]
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* [{'LOWER': 'gliozzi'}, {'OP': '*'}, {'LOWER': 'scherk'}, {'OP': '*'}, {'LOWER': 'olive'}, {'LEMMA': 'projection'}]

2021년 2월 17일 (수) 01:43 기준 최신판

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


related items


memo

메타데이터

위키데이터

Spacy 패턴 목록

  • [{'LOWER': 'gso'}, {'LEMMA': 'projection'}]
  • [{'LOWER': 'gliozzi'}, {'OP': '*'}, {'LOWER': 'scherk'}, {'OP': '*'}, {'LOWER': 'olive'}, {'LEMMA': 'projection'}]
원본 주소 "https://wiki.mathnt.net/index.php?title=GSO_projection&oldid=51839"