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- Riccardo Argurio, Matteo Bertolini, Gabriele Ferretti, Alberto Lerda, Christoffer Petersson
- 2008

We study the effects produced by D-brane instantons on the holomorphic quantities of a D-brane gauge theory at an orbifold singularity. These effects are not limited to reproducing the well known… (More)

In this paper we show that it is possible to derive non-perturbative superpotential terms from a stringy instanton without introducing orientifold planes. The instanton is realized by a Euclidean D… (More)

In this note we study the N = 1 abelian gauge theory on the world volume of a single fractional D3-brane. In the limit where gravitational interactions are not completely decoupled we find that a… (More)

- Carson Stephens, Roberto Franceschini, Christoffer Petersson, Riccardo Torre
- Physical review letters
- 2015

The LHC searches for light compressed top squarks have resulted in considerable bounds in the case where the top squark decays to a neutralino and a charm quark. However, in the case where the top… (More)

We study the equations of motion of fermions in type IIB supergravity in the context of the gauge/gravity correspondence. The main motivation is the search for normalizable fermionic zero modes in… (More)

- Christoffer Petersson, Riccardo Torre
- Physical review letters
- 2016

We interpret the diphoton excess recently reported by the ATLAS and CMS Collaborations as a new resonance arising from the sgoldstino scalar, which is the superpartner of the Goldstone mode of… (More)

- U. Gran, Bengt E. W. Nilsson, Christoffer Petersson
- 2008

We discuss the difficulties to find Lagrangian theories for multiple M2branes. By investigating the conditions needed for the existence of maximally supersymmetric field equations we are led to… (More)

We study non-perturbative D(−1)-instanton corrections to quartic gauge and curvature couplings in 8d type IIB orientifolds, in terms of a one-loop computation of BPS D0-branes in T-dual type I’… (More)

Deep learning is an approach to machine learning that uses multiple transformation layers to extract hierarchical features and learn descriptive representations of the input data. It has been… (More)

- Riccardo Argurio, Matteo Bertolini, Gabriele Ferretti, Alberto Lerda, Christoffer Petersson
- 2008

We study the effects produced by D-brane instantons on the holomorphic quantities of a D-brane gauge theory at an orbifold singularity. These effects are not limited to reproducing the well known… (More)

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