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Investigating the BPS Spectrum of Non-Critical E_n Strings | | J.A. Minahan
; D. Nemeschansky
; N.P. Warner
; | | Date: |
30 May 1997 | | Journal: | Nucl.Phys. B508 (1997) 64-106 | | Subject: | hep-th | | Abstract: | We use the effective action of the $E_n$ non-critical strings to study its BPS spectrum for $0 le n le 8$. We show how to introduce mass parameters, or Wilson lines, into the effective action, and then perform the appropriate asymptotic expansions that yield the BPS spectrum. The result is the $E_n$ character expansion of the spectrum, and is equivalent to performing the mirror map on a Calabi-Yau with up to nine Kähler moduli. This enables a much more detailed examination of the $E_n$ structure of the theory, and provides extensive checks on the effective action description of the non-critical string. We extract some universal ($E_n$ independent) information concerning the degeneracies of BPS excitations. | | Source: | arXiv, hep-th/9705237 | | Services: | Forum | Review | PDF | Favorites | |
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