We analyze the general class of supersymmetry preserving orbifolds of strong/weak Type IIA/heterotic dual pairs in six dimensions and below. A unified treatment is given by considering compactification to two space-time dimensions and constructing orbifolds by subgroups of the Fischer-Greiss monster, utilizing the moonshine results of Conway and Norton. Duality requires nontrivial Ramond-Ramond fluxes on the Type IIA side which are localized at the fixed points. Further orbifolding by (-1)(FL) gives examples of new four-dimensional N = 2 Type IIA vacua which are not conformal field theory backgrounds.
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Univ Naples Federico II, Dipartimento Sci Fis, Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, ItalySimon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada
Mueck, Wolfgang
Nunez, Carlos
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Univ Wales Swansea, Dept Phys, Swansea SA2 8PP, W Glam, WalesSimon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada
Nunez, Carlos
Zayas, Leopoldo A. Pando
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Univ Michigan, Michigan Ctr Theoret Phys, Ann Arbor, MI 48109 USASimon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada
Zayas, Leopoldo A. Pando
Ramallo, Alfonso V.
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Univ Santiago de Compostela, Dept Fis Particulas, IGFAE, Santiago De Compostela 15782, SpainSimon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada
Ramallo, Alfonso V.
Rashkov, Radoslav C.
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Vienna Univ Technol, Inst Theoret Phys, A-1040 Vienna, Austria
Univ Sofia, Dept Phys, Sofia 1504, BulgariaSimon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada
Rashkov, Radoslav C.
Viswanathan, Kadayam S.
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Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada
Simon Fraser Univ, IRMACS, Burnaby, BC V5A 1S6, CanadaSimon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada