# Can pure-bosonic string theories exist in curved spacetime?

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Question: Can there be a consistent non-supersymmetric pure-bosonic string theory in some curved spacetimes?

Reason: Since fields with certain amount of negative mass can exist in curved spacetime (cf. the Breitenlohner-Freedman bound in AdS) and since avoiding ground-state tachyons of pure-bosonic strings in flat spacetime seems to be the main motivation (besides phenomenological reasons) for superstrings in flat spacetime.

Extending this, are there examples of consistent AdS/CFT dualities involving pure-bosonic fields in the bulk?

This post imported from StackExchange Physics at 2015-09-05 17:50 (UTC), posted by SE-user crackjack

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