nLab
open/closed string duality

Context

String theory

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Duality

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In QFT and String theory

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Gravity

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Quantum theory

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Quantum field theory

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Contents

Idea

In string theory a given Riemann surface with punctures can usually be read in different ways as describing either closed strings or open strings. For instance the disk-diagram describes equivalently a process where a closed string disappears, or a process where an open string first appears and then disappears.

Since closed string excitations induce gravity while open string excitations induce Yang-Mills fields as effective field theories, this leads to a multitude of relations between these ordinary quantum field theories, such as the KLT relations or the AdS/CFT correspondence.

References

Last revised on October 25, 2012 at 23:30:09. See the history of this page for a list of all contributions to it.