JMJesse van Muiden

Jesse van Muiden

Imperial College London
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Jesse van Muiden has a total of 29 co-authors. Here are the top co-authors by number of shared publications:

Latest Publications

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    Extremal couplings and gluon scattering in M-theory

    by Shai M. Chester, Rishi Mouland, Jesse van Muiden, Clément Virally

    A bstract: We consider M-theory on the backgrounds $$ {\mathrm{AdS}}_4\times {S}^7/{\mathbb{Z}}_{N_f} $$ AdS 4 × S 7 / ℤ N f and AdS 7 × S 4 /ℤ 2 , which have fixed point loci AdS d +1 × S 3 for d = 3, 6. These theories are holographically dual to certain CFTs in d = 3, 6 with eight supercharges. We compute the bulk cubic couplings between graviton KK modes and gluon KK modes living on the fixed points of these theories, which are generically extremal. We use these couplings to compute the graviton exchange term that appears in the strong coupling expansion of holographic correlators of gluon KK modes 〈22 pp 〉 in these theories, and check that it matches the expected flat space limit. We express the answer in terms of a new reduced correlator solution to the superconformal Ward identities, which we derive for all CFTs with eight supercharges in 3 ≤ d ≤ 6.

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    Extremal couplings and gluon scattering in M-theory

    by Shai M. Chester, Rishi Mouland, Jesse van Muiden, Clément Virally

    We consider M-theory on the backgrounds AdS$_4\times S^7/\mathbb{Z}_{N_f}$ and AdS$_7\times S^4/\mathbb{Z}_2$, which have fixed point locii AdS$_{d+1}\times S^3$ for $d=3,6$. These theories are holographically dual to certain CFTs in $d=3,6$ with eight supercharges. We compute the bulk cubic couplings between graviton KK modes and gluon KK modes living on the fixed points of these theories, which are generically extremal. We use these couplings to compute the graviton exchange term that appears in the strong coupling expansion of holographic correlators of gluon KK modes $\langle 22pp\rangle$ in these theories, and check that it matches the expected flat space limit. We express the answer in terms of a new reduced correlator solution to the superconformal Ward identities, which we derive for all CFTs with eight supercharges in $3\leq d\leq6$.

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    Ensembles in M-theory and holography

    by Friðrik Freyr Gautason, Jesse van Muiden

    A bstract: We discuss that the string/M-theory partition function requires a choice of ensembles, depending on which background fields are held fixed. The background fields correspond to worldvolume couplings in the effective action approach to the superstring, which we extrapolate to the M2-brane. One natural ensemble in this context, which we call the M2-ensemble, corresponds to fixing the value of the M-theory three-form potential. In holographic setups the choice of ensemble is important when comparing to observables in the dual field theory. Indeed, in AdS 4 holography the M2-ensemble does not map gravitational observables directly to field theory observables at a fixed rank N , but rather to observables in the grand canonical ensemble. We remark that many M2-brane partition functions take a simple form in this ensemble hinting at one-loop exactness. We also discuss how in AdS 7 holography, the M2-ensemble does correspond to the canonical ensemble in the field theory, i.e. the (2,0) theory at fixed rank N .

    Cited by 23
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    Extremal couplings, graviton exchange, and gluon scattering in AdS

    by Shai M. Chester, Rishi Mouland, Jesse van Muiden

    A bstract: Extremal cubic couplings in AdS relate bulk fields such that ∆ i + ∆ j = ∆ k . Such couplings lead to divergent 3-point Witten diagrams, and do not occur in theories with maximal supersymmetry. We consider the simplest theories where such coupling are non-zero, which is type IIB string theory with N D3 branes probing various configurations of sevenbranes, which are dual to certain 4d $$\mathcal{N}=2$$ SCFTs. At large N , the low energy effective theory is supergravity on AdS 5 × S 5 with a singularity, whose fixed point locus is AdS 5 × S 3 . These theories have infinite towers of graviton modes, as well as gluon modes on the sevenbranes. We compute the nonzero coupling between these modes, which is in general (super)-extremal. We use these couplings to compute the graviton exchange term in the holographic correlator of gluon KK modes $$\langle 22pp\rangle $$ , which appears at the same order 1/ N 2 as 1-loop gluon exchange, and receives contributions from a whole tower of graviton modes. We use this graviton exchange term to compute the unmixing of the single trace graviton modes with double traces of gluon modes, which explains the divergent 3-point diagrams. Finally, for $$\langle 2222\rangle $$ for the simplest 4d $$\mathcal{N}=2$$ gauge theory, we use supersymmetric localization and the new graviton exchange term to completely fix the correlator at order 1/ N 2 .

    Cited by 6
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    Localization of the M2-Brane

    by Friðrik Freyr Gautason, Jesse van Muiden

    We study quantum M2-branes in holographic backgrounds and show that their moduli spaces of zero modes are localized according to an R-symmetry Killing vector. We discuss the relation with recent results in the context of equivariant localization in gauged supergravity and argue its origin within M-theory path integrals expanded in saddle points over M2-branes. We argue that the M2-brane partition function, including its nonperturbative corrections, should be compared to the field theory grand canonical partition function. Our results extend recent observations in the context of the giant graviton expansion of superconformal indices to generic supersymmetric anti–de Sitter boundary conditions. As a byproduct we predict nonperturbative corrections to a variety of supersymmetric observables of the Aharony-Bergman-Jafferis-Maldacena theory.

    Cited by 17
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    BCFT One-point Functions of Coulomb Branch Operators

    by Davide Bason, Lorenzo Di Pietro, Roberto Valandro, Jesse van Muiden

    A bstract: We show that supersymmetry can be used to compute the BCFT one-point function coefficients for chiral primary operators, in 4d $$ \mathcal{N} $$ N = 2 SCFTs with $$ \frac{1}{2} $$ 1 2 -BPS boundary conditions. The main ingredient is the hemisphere partition function, with the boundary condition on the equatorial S 3 . A supersymmetric Ward identity relates derivatives with respect to the chiral coupling constants to the insertion of the primaries at the pole of the hemisphere. Exact results for the one-point functions can be then obtained in terms of the localization matrix model. We discuss in detail the example of the super Maxwell theory in the bulk, interacting with 3d $$ \mathcal{N} $$ N = 2 SCFTs on the boundary. In particular we derive the action of the SL(2, ℤ ) duality on the one-point functions.

    Cited by 9
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    One-loop quantization of Euclidean D3-branes in holographic backgrounds

    by Friðrik Freyr Gautason, Jesse van Muiden

    In this note we analyze the semi-classical quantization of D3-branes in three different holographic backgrounds in type IIB string theory. The first background is Euclidean AdS5 with S 1 × S 3 boundary accompanied with a twist to preserve supersymmetry. We work out the spectrum of fluctuations around the classical D3-brane configuration, compute its one-loop partition function, and match to the non-perturbative correction to the superconformal index of $$ \mathcal{N} $$ N = 4 SYM. We then study Euclidean D3-branes in the Pilch-Warner geometry dual to the IR Leigh-Strassler fixed point of $$ \mathcal{N} $$ N = 1* with the aim to find non-perturbative corrections to its index. Finally we study Euclidean D3-branes in the non-geometric $$ \mathcal{N} $$ N = 2 J-fold background which is dual to the gauging of the 3D Gaiotto-Witten SCFT.

    Cited by 20
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    The conformal manifold of S-folds in string theory

    by Nikolay Bobev, Friðrik Freyr Gautason, Jesse van Muiden

    We continue the holographic exploration of the conformal manifold of 3d $$ \mathcal{N} $$ N = 2 S-fold SCFTs constructed by gauging the flavor symmetry of the Gaiotto-Witten T[U(N)] theory. We show how to uplift the two-parameter family of AdS4 vacua dual to this conformal manifold to 10d backgrounds of type IIB supergravity. We use these uplifted solutions to shed new light on the mysterious nature of the infinite distance limit on the conformal manifold and to study probe strings and D3-branes. This analysis uncovers an intriguing structure of the S 3 partition function of the S-fold SCFTs which resembles the giant graviton expansion of the superconformal index of 4d $$ \mathcal{N} $$ N = 4 SYM. We also show how to each member of the family of supersymmetric AdS4 vacua one can associate a consistent truncation to 4d $$ \mathcal{N} $$ N = 2 gauged supergravity and use this result, in conjunction with holography, to calculate the large N partition function of the 3d S-fold SCFT on compact Euclidean manifolds. Finally, we generalize the supersymmetric AdS4 vacua to a four-parameter family of non-supersymmetric AdS4 solutions.

    Cited by 26
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    Quantized strings and instantons in holography

    by Friðrik Freyr Gautason, Valentina Giangreco M. Puletti, Jesse van Muiden

    We study worldsheet instantons in holographic type IIA backgrounds directly in string theory. The first background is a dimensional reduction of AdS7 × S4 and is dual to the maximally supersymmetric Yang-Mills theory on S5. The second background is AdS4 × CP3 dual to ABJM in the type IIA limit. We compute the one-loop partition function of the fundamental string in these backgrounds and show that the result is in exact agreement with field theory predictions. We argue that for higher rank instantons, the string partition function takes a product form of the single instanton partition function times the contribution of two orbifolds on the worldsheet. We determine the orbifold factor to be n−3/2 where n is the instanton rank. With this result, we reproduce the series of non-perturbative corrections in α′ to the planar S5 free energy. When studying the worldsheet instanton partition function on CP3, we encounter twelve fermionic and twelve bosonic zero modes. By deforming the ABJM theory, the zero-modes are lifted and consequently the tower of worldsheet instantons can be evaluated and matched to known results in the QFT. As a by-product, we determine a series of higher rank instanton corrections to the free energy of the mass-deformed and orbifolded ABJ(M) theory.

    Cited by 76
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    Holographic 3d $ \mathcal{N} $ = 1 conformal manifolds

    by Nikolay Bobev, Friðrik Freyr Gautason, Jesse van Muiden

    We construct and study several examples of continuous families of AdS4 $$ \mathcal{N} $$ N = 1 solutions of four-dimensional maximal gauged supergravity. These backgrounds provide the holographic descriptions of conformal manifolds of the dual 3d $$ \mathcal{N} $$ N = 1 SCFTs. The solutions we study can be uplifted to type IIB supergravity where they arise from D3-branes wrapping an S1 with an S-duality twist. We find the spectrum of low lying operators in the 3d $$ \mathcal{N} $$ N = 1 SCFTs as a function of the exactly marginal coupling and discuss the structure of the corresponding superconformal multiplets. Using string theory techniques we also study additional examples of continuous families of $$ \mathcal{N} $$ N = 1 AdS4 vacua in type IIB and massive type IIA supergravity.

    Cited by 7
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