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Higgs Phase of Gravity in String Theory - LUTh

Higgs Phase of Gravity in String Theory - LUTh

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Summary<br />

• Ghost condensation is the simplest <strong>Higgs</strong><br />

phase <strong>of</strong> gravity, <strong>in</strong>clud<strong>in</strong>g only one Nambu-<br />

Goldstone boson. No ghost <strong>in</strong>cluded.<br />

• Can drive <strong>in</strong>flation.<br />

• Can be alternative to DE/DM.<br />

• The KKLT setup <strong>in</strong> the regime <strong>of</strong> parameters<br />

( ) 2<br />

M RR / N 3 > gsN 3 1<br />

∼<br />

is a UV completion (str<strong>in</strong>g theory version) <strong>of</strong><br />

the gauged ghost condensation.

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