activity
20072025
most citedEntropy function for rotating extremal black holes in very special geometry

25 citations · 52 across the 8 of their papers we have counts for

collaborators

9 papers

quant-ph2025★ 1 cited

BenchQC -- Scalable and modular benchmarking of industrial quantum computing applications

Florian Geissler, Eric Stopfer, Christian Ufrecht +19

We present BenchQC, a research project funded by the state of Bavaria, which promotes an application-centric perspective for benchmarking real-world quantum applications. Diverse u…

quant-ph2023★ 2 cited

A real world test of Portfolio Optimization with Quantum Annealing

Wolfgang Sakuler, Johannes M. Oberreuter, Riccardo Aiolfi +3

In this note, we describe an experiment on portfolio optimization using the Quadratic Unconstrained Binary Optimization (QUBO) formulation. The dataset we use is taken from a real-…

eess.IV2022

Weakly-supervised Biomechanically-constrained CT/MRI Registration of the Spine

Bailiang Jian, Mohammad Farid Azampour, Francesca De Benetti +9

CT and MRI are two of the most informative modalities in spinal diagnostics and treatment planning. CT is useful when analysing bony structures, while MRI gives information about t…

cond-mat.stat-mech2018

Entanglement Entropy of Disordered Quantum Wire Junctions

Róbert Juhász, Johannes M. Oberreuter, Zoltán Zimborás

We consider different disordered lattice models composed of linear chains glued together in a star-like manner, and study the scaling of the entanglement between one arm and th…

cond-mat.str-el2015

Representation of excited states and topological order of the toric code in MERA

Johannes M. Oberreuter, Stefan Kehrein

The holographic duality relates a field theory to a theory of (quantum) gravity in one dimension more. The extra dimension represents the scale of the RG transformation in the fiel…

cond-mat.stat-mech2013★ 2 cited

Entanglement propagation and typicality of measurements in the quantum Kac ring

Johannes M. Oberreuter, Ingo Homrighausen, Stefan Kehrein

We study the time evolution of entanglement in a quantum version of the Kac ring. Our model consists of two spin chains and quantum gates instead of the classical markers. The gate…

hep-th2011★ 4 cited

Decoupling limits in multi-sector supergravities

Ana Achúcarro, Sjoerd Hardeman, Johannes M. Oberreuter +2

Conventional approaches to cosmology in supergravity assume the existence of multiple sectors that only communicate gravitationally. In principle these sectors decouple in the limi…

hep-ph2010★ 18 cited

The everpresent eta-problem: knowledge of all hidden sectors required

Sjoerd Hardeman, Johannes M. Oberreuter, Gonzalo A. Palma +2

We argue that the eta-problem in supergravity inflation cannot be solved without knowledge of the ground state of hidden sectors that are gravitationally coupled to the inflaton. I…

hep-th2007★ 25 cited

Entropy function for rotating extremal black holes in very special geometry

Gabriel Lopes Cardoso, Johannes M. Oberreuter, Jan Perz

We use the relation between extremal black hole solutions in five- and in four-dimensional N=2 supergravity theories with cubic prepotentials to define the entropy function for ext…