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Wormholes and Non-Linear σ Models |
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| Authors: | Jia-ru WEN Han-qing ZHENG |
| Institution: | Institute of High Energy Physics, Academia Sinica, P.O. Box 918, Bejing 100039, China |
| Abstract: | We show that the Giddings-Strominger-like wormholes exist in the systems comprised of SUL(n)×SUR(n) or O(n) non-linear a models coupled to O(4) symmetric gravity. Some details are discussed for the case of SUL(2)×SUR(2) and two kinds of wormhole instantons are shown. |
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