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Higgs Phase of Gravity in String Theory - LUTh

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Order<br />

Parameter<br />

<strong>Higgs</strong> Mechanism Ghost Condensation<br />

Instability Tachyon Ghost<br />

Condensate V’=0, V’’>0 P’=0, P’’>0<br />

Spontaneous<br />

break<strong>in</strong>g<br />

Gauge symmetry Lorents symmetry<br />

(Time translation)<br />

Modify<strong>in</strong>g Gauge force Gravitational force<br />

New<br />

potential<br />

Φ V(<br />

Φ)<br />

∂ φ<br />

− m<br />

Φ<br />

2<br />

Φ<br />

2<br />

( ) 2<br />

( ∂φ)<br />

Yukawa-type Oscillat<strong>in</strong>g <strong>in</strong> space<br />

Grow<strong>in</strong>g <strong>in</strong> time<br />

μ<br />

P<br />

φ<br />

2 −<br />

φ

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