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- W2953227510 abstract "A recently introduced framework for the compactification of supersymmetric string theory involving noncritical manifolds of complex dimension $2k+D_{crit}$, $kgeq 1$, is reviewed. These higher dimensional manifolds are spaces with quantized positive Ricci curvature and therefore do not, a priori, describe consistent string vacua. It is nevertheless possible to derive from these manifolds the massless spectra of critical string groundstates. For a subclass of these noncritical theories it is also possible to explicitly construct Calabi--Yau manifolds from the higher dimensional spaces. Thus the new class of theories makes contact with the standard framework of string compactification. This class of manifolds is more general than that of Calabi--Yau manifolds because it contains spaces which correspond to critical string vacua with no Kahler deformations, i.e. no antigenerations, hence providing mirrors of rigid Calabi--Yau manifolds. The constructions reviewed here lead to new insight into the relation between exactly solvable models and their mean field theories on the one hand and Calabi--Yau manifolds on the other, leading, for instance, to a modification of Gepner's conjecture. They also raise fundamental questions about the Kaluza--Klein concept of string compactification, in particular regarding the role played by the dimension of the internal theories." @default.
- W2953227510 created "2019-06-27" @default.
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- W2953227510 date "1992-11-02" @default.
- W2953227510 modified "2023-09-27" @default.
- W2953227510 title "Noncritical Dimensions for Critical String Theory: Life beyond the Calabi-Yau Frontier" @default.
- W2953227510 hasPublicationYear "1992" @default.
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