Quantized strings and instantons in holography

FF Gautason, VGM Puletti, J van Muiden - Journal of High Energy Physics, 2023 - Springer
A bstract We study worldsheet instantons in holographic type IIA backgrounds directly in
string theory. The first background is a dimensional reduction of AdS 7× S 4 and is dual to …

(2, 0) theory on S5× S1 and quantum M2 branes

M Beccaria, S Giombi, AA Tseytlin - Nuclear Physics B, 2024 - Elsevier
The superconformal index Z of the 6d (2, 0) theory on S 5× S 1 (which is related to the
localization partition function of 5d SYM on S 5) should be captured at large N by the …

Euclidean black saddles and AdS4 black holes

N Bobev, AM Charles, VS Min - Journal of High Energy Physics, 2020 - Springer
A bstract We find new asymptotically locally AdS 4 Euclidean supersymmetric solutions of
the STU model in four-dimensional gauged supergravity. These “black saddles” have an S …

AdS7 black holes from rotating M5-branes

N Bobev, M David, J Hong, R Mouland - Journal of High Energy Physics, 2023 - Springer
A bstract We construct a general asymptotically locally AdS 7 stationary black hole solution
of 7d maximal gauged supergravity with three angular momenta and two electric charges …

Bubble instabilities of mIIA on AdS

P Bomans, D Cassani, G Dibitetto, N Petri - SciPost Physics, 2022 - scipost.org
We consider compactifications of massive IIA supergravity on a six-sphere. This setup is
known to give rise to non-supersymmetric AdS $ _4 $ vacua preserving SO $(7) $ as well as …

[HTML][HTML] Large N expansion of superconformal index of k= 1 ABJM theory and semiclassical M5 brane partition function

M Beccaria, AA Tseytlin - Nuclear Physics B, 2024 - Elsevier
It was shown in arxiv: 2309.10786 that the leading non-perturbative contribution to the large
N expansion of the superconformal index of the (2, 0) 6d theory (which describes low-energy …

A story of non-conformal branes: spindles, disks, circles and black holes

M Boisvert, P Ferrero - Journal of High Energy Physics, 2024 - Springer
A bstract We consider the (p+ 2)-dimensional gauged supergravities arising as a consistent
truncation of type II on S 8− p, which are associated with the near-horizon limit of Dp-branes …

Spherical branes and the BMN matrix quantum mechanics

N Bobev, P Bomans, FF Gautason - Journal of High Energy Physics, 2025 - Springer
A bstract We study the maximally supersymmetric Yang-Mills theory on S d using
supersymmetric localisation and holography. We argue that the analytic continuation in …

One-loop quantization of Euclidean D3-branes in holographic backgrounds

FF Gautason, J van Muiden - Journal of High Energy Physics, 2024 - Springer
A bstract 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 …

The Polarised IKKT Matrix Model

SA Hartnoll, J Liu - arxiv preprint arxiv:2409.18706, 2024 - arxiv.org
We establish a correspondence between a supersymmetric mass deformation of the IKKT
matrix integral at large $ N $ and a background of Euclidean type IIB string theory. Both …