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ExampleConstruction: AI-generatedVerification: AI-generatedPipeline-generatedprecheck passjudge pass (gpt-6-luna)verified 2026-11-05 (gpt-6.1-sol)
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N=1 Constant-Superpotential Potential on a Flat Chiral Patch

Physical scope

One local neutral chiral scalar and an uncharged spectator U(1) in the adopted two-derivative N=1 Einstein-frame model, with no auxiliary-independent scalar-potential term; the example evaluates the scalar potential and makes no string compactification or vacuum-realization claim.

Example

Take one complex chiral coordinate z∈C of mass dimension 1, MP>0, the trivial Kähler line bundle, Kähler potential K(z,zˉ)=zzˉ, and constant nonzero superpotential W(z)=w0 of mass dimension 3. Couple one spectator U(1) vector with f=1, zero Killing vector, and zero moment map P=0. This is local one-field N=1 data in the Kähler-Hodge patch convention; the vector is uncharged and contributes no D-term. Take the scalar potential to be generated solely by eliminating the displayed auxiliary sector, with no additional auxiliary-independent term, and evaluate it using the F/D formula stated below.

Facts & Assumptions

Given: z∈C, K=zzˉ, W=w0≠0, MP>0, the trivial line-bundle patch, and the uncharged vector data f=1, k=0, P=0. In this example no auxiliary-independent scalar-potential term is added.

[F1]

Four-Dimensional N=1 Kähler–Hodge Line Data fixes DzW=∂zW+(Kz/MP2)W and the mass dimensions.

[F2]

Four-Dimensional N=1 Matter-Coupled Supergravity adopts the old-minimal N=1 component framework used in this example.

[F3]

Four-Dimensional N=1 F- and D-Term Scalar Potential gives the conditional F/D scalar-potential formula.

Verification

1.1givenF1F3algebra

Since Kz=zˉ, ∂zW=0, and W=w0, [F1] gives DzW=zˉ w0/MP2. Also Kzzˉ=1, so Kzzˉ=1; the metric is positive and the inverse used in [F3] exists.

2.1givenF1F2F3step 1.1algebra∎

Substitution into [F3] gives V=e∣z∣2/MP2(∣z∣2∣w0∣2MP4−3∣w0∣2MP2)=e∣z∣2/MP2∣w0∣2MP2(∣z∣2MP2−3), because P=0 removes the D-term. At z=0, this yields V(0)=−3∣w0∣2/MP2. The result has mass dimension four and is a value of the adopted model potential, not a claim about a realized string vacuum.

Remarks

This calculation uses the adopted N=1 framework and scalar-potential carriers on the A page, with the four-dimensional Einstein-frame and Planck normalization of Supergravity Conventions And Normalizations. It remains a conditional example in that low-energy model.

Depends on

Dependency tree · 2 levels

Sources