Can strings live in four dimensions?

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Using a novel, non-perturbative, time-dependent string configuration derived in [1], we present here an argument which selects new critical dimensions for the target space time of a bosonic sigma model, with D=4 the lowest non trivial value. This argument is based on the properties of the partition function after a target space Wick rotation.
3 pages, LaTeX

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High Energy Physics - Theory, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/125910

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-th/0703171
 http://arxiv.org/abs/hep-th/0703171

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arXiv