The Orbifolds of Permutation-Type as Physical String Systems at Multiples of c=26 II. The Twisted BRST Systems of \hatc=52 Matter

Abstract

This is the second in a series of papers which consider the orbifolds of permutation-type as candidates for new physical string systems at higher central charge. In the first paper, I worked out the extended actions of the twisted sectors of these orbifolds -- which exhibit new permutation-twisted world-sheet gravities and correspondingly extended diffeomorphism groups. In this paper I begin the study of these systems as operator string theories, limiting the discussion for simplicity to the strings with $\hat{c}=52$ matter (which are those governed by ${\mathbb{Z}}_2$-twisted permutation gravity). In particular, I present here a construction of the twisted reparametrization ghosts and {\em new twisted BRST systems} of all $\hat{c}=52$ strings. The twisted BRST systems also imply new {\em extended physical state conditions}, whose analysis for individual $\hat{c}=52$ strings is deferred to the next paper of the series.

arXiv comment21 pages, reference added and typos corrected

References in corpus (13)

• Matrix String Theory
• Systematic approach to cyclic orbifolds
• Irrational Conformal Field Theory
• Chern-Simons Gauge Theory on Orbifolds: Open Strings from Three Dimensions
• General Virasoro Construction on Orbifold Affine Algebra
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• The General Twisted Open WZW String
• The General Coset Orbifold Action
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• Twisted Einstein Tensors and Orbifold Geometry
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Cited by in corpus (4)

• The Orbifold-String Theories of Permutation-Type: I. One Twisted BRST per Cycle per Sector
• The Orbifolds of Permutation-Type as Physical String Systems at Multiples of $\mathbf{c}=26$ V. Cyclic Permutation Orbifolds
• The orbifold-string theories of permutation-type: II. Cycle dynamics and target space-time dimensions
• The Orbifold-String Theories of Permutation-Type: III. Lorentzian and Euclidean Space-Times in a Large Example