REVIEW
Supersymmetric AdS_3, AdS_2 and Bubble Solutions
High Energy Physics - Theory · Submitted 22 Dec 2006 · 27 references
Pith's verdict: A solid construction paper: the new D=11 AdS2 family and the toric-like rescaling of superstar Kähler geometry are real results, but the §5 families never exhibit a regular member.
T0 · AI review
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Referee report
The paper
The paper claims
A single fourth-order equation on a Kähler metric generates new supersymmetric $AdS_3$ solutions in type IIB and $AdS_2$ solutions in $D=11$ supergravity, with the sign of the Ricci scalar switching between AdS and bubble backgrounds.
The reading
What carries the argument
The load-bearing object is a Kähler metric (a metric whose associated two-form is closed) on a $2n+2$-dimensional space whose Ricci scalar and Ricci tensor satisfy $$(1.1)$$. In the $AdS_3$ case ($n=2$) the internal seven-manifold is $ds^2(Y_7)=1/4(dz+P)^2+e^{-4A}ds^2_6$ with $dP=R$ and $e^{-4A}=1/8R$; in the $AdS_2$ case ($n=3$) the internal nine-manifold is $ds^2(Y_9)=(dz+P)^2+e^{-3A}ds^2_8$ with $e^{-3A}=1/2R$. The Kähler condition makes the flux closed, and (1.1) makes the equation of motion hold, so the whole supergravity solution is reduced to finding a Kähler metric with the right sign of $R$. The paper's three constructions are concrete ways to solve that one equation: an $S^2$ fibration with metric $ds^2_{2n+2}=dρ^2/U+Uρ^2(Dφ)^2+ρ^2ds^2(KE^+_{2n})$, a rescaling of the multi-charged superstar Kähler metrics, and a direct product of two-dimensional Kähler-Einstein metrics.
Extended reading notes
Core claim
The central claim is that the fourth-order scalar condition $$(1.1)$$ is the right organizing equation for a broad class of supersymmetric $AdS_3$ and $AdS_2$ solutions, not just a technical consistency condition for one example. Starting from a warped product with an internal space built over a $2n+2$-dimensional Kähler metric, the authors show that the warp factor and the five-form or four-form flux are fixed by that metric, and that the only remaining equation is (1.1). They then produce explicit solutions: the six-dimensional case recovers the known type IIB $AdS_3$ family of [11], the eight-dimensional case gives a new one-parameter $D=11$ $AdS_2$ family, a non-compact limit gives $AdS_2$ backgrounds dual to three-dimensional $N=2$ SCFTs with point-like defects, and rescaled multi-charged superstar metrics give new $AdS_3$ and $AdS_2$ families with toric-like isometries. The paper also shows that the same metrics with $R<0$ yield bubble solutions, including uplifts of single-charged superstars and new product-of-Kähler-Einstein bubbles. The claim is primarily a local geometric construction; global regularity and flux quantisation are checked only in part and are explicitly left for future work in several families.
Load-bearing premise
The load-bearing premise is that the local Kähler metrics satisfying (1.1) can be completed to smooth compact internal spaces with properly quantised five-form or four-form flux; the paper checks regularity in places but explicitly postpones flux quantisation for the $D=11$ fibration family and for the new multi-charged $AdS$ families.
Editorial extensions
If this is right
- The type IIB $AdS_3$ solutions have dual two-dimensional $(0,2)$ SCFTs, and the $D=11$ $AdS_2$ solutions have dual conformal quantum mechanics with two supercharges.
- The non-compact $AdS_2$ solutions are dual to three-dimensional $N=2$ SCFTs coupled to point-like defects.
- The bubble solutions describe BPS states in the dual conformal theories and preserve four supersymmetries.
- The fibration construction recovers the known $AdS_3$ family of [11] and produces a new one-parameter $D=11$ $AdS_2$ family.
- The product-of-Kähler-Einstein construction includes near-horizon geometries of D3-branes wrapping a holomorphic curve in a Calabi-Yau four-fold and M2-branes wrapping a holomorphic curve in a Calabi-Yau five-fold.
Reading between the lines
- If flux quantisation can be arranged, the continuous parameters in the multi-charged families will be discretised by integrality, giving a countable family of dual CFTs rather than a continuum.
- The defect interpretation suggests a direct holographic computation of defect central charge or entropy from the non-compact $AdS_2$ metric, which the paper does not attempt.
- The same fourth-order condition may serve as a classification tool for near-horizon geometries of wrapped branes beyond the explicit fibration, superstar, and product constructions.
- A useful stress test is to compare the product-of-Kähler-Einstein solutions with known wrapped-brane central charges; agreement would tie the new families to specific CFTs.
Original abstract
We present new supersymmetric AdS_3 solutions of type IIB supergravity and AdS_2 solutions of D=11 supergravity. The former are dual to conformal field theories in two dimensions with N=(0,2) supersymmetry while the latter are dual to conformal quantum mechanics with two supercharges. Our construction also includes AdS_2 solutions of D=11 supergravity that have non-compact internal spaces which are dual to three-dimensional N=2 superconformal field theories coupled to point-like defects. We also present some new bubble-type solutions, corresponding to BPS states in conformal theories, that preserve four supersymmetries.
The compiled record
The paper's own sentences, arranged, kept beside the review and separate from it. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
The abstract, sentence by sentence
We present new supersymmetric AdS_3 solutions of type IIB supergravity and AdS_2 solutions of D=11 supergravity. The former are dual to conformal field theories in two dimensions with N=(0,2) supersymmetry while the latter are dual to conformal quantum mechanics with two supercharges. Our construction also includes AdS_2 solutions of D=11 supergravity that have non-compact internal spaces which are dual to three-dimensional N=2 superconformal field theories coupled to point-like defects. We also present some new bubble-type solutions, corresponding to BPS states in conformal theories, that preserve four supersymmetries.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present new supersymmetric AdS_3 solutions of type IIB supergravity and AdS_2 solutions of D=11 supergravity. | contribution 0.97 | 0.96 | 0.63 | asserted 1.00 |
| s1 | The former are dual to conformal field theories in two dimensions with N=(0,2) supersymmetry while the latter are dual to conformal quantum mechanics with two supercharges. | interpretation 0.96 | 0.45 | 0.17 | asserted 1.00 |
| s2 | Our construction also includes AdS_2 solutions of D=11 supergravity that have non-compact internal spaces which are dual to three-dimensional N=2 superconformal field theories coupled to point-like defects. | contribution 0.56 | 0.93 | 0.14 | asserted 1.00 |
| s3 | We also present some new bubble-type solutions, corresponding to BPS states in conformal theories, that preserve four supersymmetries. | contribution 0.91 | 0.95 | 0.15 | asserted 1.00 |
What was examined, and what was not
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References
How later papers used it
70 later papers cite it
3 later papers by other authors are listed below: 2 used its method or tool and 1 compared its own results with it. 5 more papers by the same authors are listed: 3 built on it and 2 compared their own results with it.
Builds on it 3 of 10 papers with this label · 3 by the same authors
By the same authors
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Completed the analysis of flux quantization for solutions that this paper had constructed.
Fibred GK geometry and supersymmetric $AdS$ solutions (2019) (same authors) · 0.88 · paraphrased: the licence does not allow quoting
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Generalized this paper's solutions by an extra rotation parameter, uplifting to regular AdS_2×Y_9 solutions.
Accelerating Black Holes and Spinning Spindles (2020) (same authors) · 0.99 · paraphrased: the licence does not allow quoting
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Extended this paper's results by carrying out the analysis of flux quantization for the AdS_2×Y_9 solutions.
Toric geometry and the dual of ${\cal I}$-extremization (2019) (same authors) · 0.99 · paraphrased: the licence does not allow quoting
Uses its method or tool 2 of 7 papers with this label
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Used the results in this paper to rewrite the metric in a form with the R-symmetry vector manifest.
M2-branes on Discs and Multi-Charged Spindles (2021) · 0.81 · paraphrased: the licence does not allow quoting
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Wrote the AdS_3 metric as a foliation by AdS_2 as in this paper to perform the duality chain.
F-theory and AdS_3/CFT_2 (2,0) (2017) · 0.91 · paraphrased: the licence does not allow quoting
Compares with it 3 of 10 papers with this label · 2 by the same authors
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Verified that its own metric is the same as that given in section 5.2 of this paper, identifying coordinates and parameters.
Twisted D3-brane and M5-brane compactifications from multi-charge spindles (2021) · 0.93 · paraphrased: the licence does not allow quoting
By the same authors
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Once we identify $v_1$ in the metric [ref] and the flux [ref] as v_1=√(3ℓ_12+ℓ_1), we reproduce the metric and the flux in [ref] [Here we denote $L$ used in [ref] by $L_GKW$.
Uplifting dyonic AdS$_4$ black holes on seven-dimensional Sasaki-Einstein manifolds (2020) (same authors) · Comparison to known AdS$_2$ solutions · 0.98
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Found its own black hole horizon metric to be precisely the metric of the AdS_2 solution constructed directly as in (6.15) of this paper, with length normalization as in this paper.
A geometric dual of $c$-extremization (2018) (same authors) · 0.93 · paraphrased: the licence does not allow quoting
How the literature uses it
68 arXiv papers cite this in 201 sentences
Papers citing it · 118 sentences without a confident label
Contests it 3 papers
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The uplift formula, [ref] , is given for the metric, [equation] and for the self-dual five-form flux, $F_(5) = G_(5)+*G_(5)$,[A sign error in the second term of the formula in [ref] is corrected in [ref] and [ref] .] [equation] where we define [equation] and $vol_5$ and $*_5$ denote the volume form and the Hodge dual with respect to the five-dimensional metric, $ds_5^2$, respectively.
D3-branes and M5-branes wrapped on a topological disc · Uplift to type IIB supergravity · contest 0.76
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Any supersymmetric solution of this model can be uplifted on $S^5$ to give a supersymmetric solution of type IIB supergravity using the results of [ref] .[As pointed out in [ref] there is a typo in the five-form flux in [ref] .
Supersymmetric spindles · The $D=5$ gauged supergravity model · contest 0.80
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As in [ref] we have corrected the sign of the second factor in [ref], compared with the expression given in [ref] .
Twisted D3-brane and M5-brane compactifications from multi-charge spindles · Local form of the solutions · contest 0.81
Builds on it 10 papers
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These uplift to regular $AdS_2×Y_9$ solutions, which generalise those of [ref] by an extra rotation parameter.
Accelerating Black Holes and Spinning Spindles · Near horizon limit: $AdS_2×𝕎ℂℙ^1_[n_-,n_+]$ · 0.99
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This solution was obtained by taking the Baryonic twist solution for $Y^p,q$ found in [ref] and further elucidated in [ref] and performing a beta deformation [ref] along the two directions of the two-torus in the geometry.
$\mathcal{N}=(0,2)$ AdS$_3$ Solutions of Type IIB and F-theory with Generic Fluxes · A representative solution of the general case · 0.92
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We also showed how the general class of $AdS$ solutions can be analytically continued to obtain general classes of 1/8 BPS bubble solutions with additional fluxes to the classes of solutions considered in [ref] .
AdS Solutions Through Transgression · Conclusions · 1.00
Uses its method or tool 7 papers
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With these ingredients to hand, and using [ref] [equation] where $R$ is the Ricci scalar of the eight-dimensional transverse Kähler metric, we may now compute the “entropy" given by [ref] (see equation (2.20) of [ref] ) [equation]
Fibred GK geometry and supersymmetric $AdS$ solutions · $D=11$: $𝒴^,(KE_6^+)$ · 0.88
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This is defined as a certain bilinear in the Killing spinors on $Y_7$ [ref] , and combining the general results of the latter reference with the form of the solution given in [ref] we can read off that this vector field is simply [equation] Here we have normalized the R-symmetry so that the Killing spinor on $Y_7$ has unit charge under the Lie derivative along this vector field, giving an explicit phase dependence of $^ϕ$.
Twisted D3-brane and M5-brane compactifications from multi-charge spindles · Central charge and R-symmetry · 0.89
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We will also construct rich new classes of explicit solutions by following a similar analysis to that of [ref] .
AdS Solutions Through Transgression · Introduction · 0.95
Compares with it 10 papers
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We show that this uplifted solution is equivalent to the eleven-dimensional solutions [ref] up to overall scaling.
Black holes with baryonic charge and $\mathcal{I}$-extremization · Uplift of $D=4$ solutions with baryonic magnetic charge · 0.98
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We will show that the uplifts of magnetic, dyonic black holes correspond to AdS$_2$ solutions in M-theory with electric and dyonic baryonic fluxes, respectively, studied in [ref] .
Uplifting dyonic AdS$_4$ black holes on seven-dimensional Sasaki-Einstein manifolds · Uplifted AdS$_2$ solutions in $D=11$ supergravity · 0.83
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One can verify that this is the same metric as that given in section 5.2 of [ref] , where we identify their coordinates and parameters, in terms of those presented here, as $w=x-α$, $z=-2ϕ$, $q_I=α+3K_I$.
Twisted D3-brane and M5-brane compactifications from multi-charge spindles · Local form of the solutions · 0.93
Cites it as background 29 papers
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An interesting class of geometries in seven and nine dimensions was recently discovered in [ref] and further explored in [ref] .
Geometries with Killing Spinors and Supersymmetric AdS Solutions · Introduction · 0.89
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In this section, we review AdS$_2$ solutions in $D=11$ supergravity, which were studied in [ref] by considering M2-branes wrapped on two-cycles in a Calabi-Yau 5-fold and further developed in [ref] .
Uplifting dyonic AdS$_4$ black holes on seven-dimensional Sasaki-Einstein manifolds · AdS$_2$ solutions in $D=11$ supergravity · 0.98
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These solutions were first discussed in section 3.2 of [ref] , including determining the conditions required to obtain regular solutions, which are labelled by two positive, relatively prime integers, $,>0$.
Fibred GK geometry and supersymmetric $AdS$ solutions · $D=11$: $𝒴^,(KE_6^+)$ · 0.83
Discussion
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