Outputs (222)

Interference-free walks in time: Temporally disjoint paths (2022)
Journal Article
Klobas, N., Mertzios, G., Molter, H., Niedermeier, R., & Zschoche, P. (2022). Interference-free walks in time: Temporally disjoint paths. Autonomous Agents and Multi-Agent Systems, 37, Article 1. https://doi.org/10.1007/s10458-022-09583-5

We investigate the computational complexity of finding temporally disjoint paths or walks in temporal graphs. There, the edge set changes over discrete time steps and a temporal path (resp. walk) uses edges that appear at monotonically increasing tim... Read More about Interference-free walks in time: Temporally disjoint paths.

Spectral Gap for Weil–Petersson Random Surfaces with Cusps (2022)
Journal Article
Hide, W. (2023). Spectral Gap for Weil–Petersson Random Surfaces with Cusps. International Mathematics Research Notices, 2023(20), 17411–17460. https://doi.org/10.1093/imrn/rnac293

We show that for any ε>0⁠, α∈[0, 1 2 )⁠, as g→∞ a generic finite-area genus g hyperbolic surface with n=O(gα) cusps, sampled with probability arising from the Weil–Petersson metric on moduli space, has no non-zero eigenvalue of the Laplacian below 1... Read More about Spectral Gap for Weil–Petersson Random Surfaces with Cusps.

Semiclassics of three-dimensional SCFTs from holography (2022)
Journal Article
Cremonesi, S., Lanza, S., & Martucci, L. (2022). Semiclassics of three-dimensional SCFTs from holography. Journal of High Energy Physics, 2022, https://doi.org/10.1007/jhep10%282022%29111

We use holography to compute the large-N eective eld theory along the moduli space of vacua of an innite class of three-dimensional N = 2 SCFTs admitting a dual M-theory description. We focus in particular on toric models and show how the spectrum of... Read More about Semiclassics of three-dimensional SCFTs from holography.

Comments on QCD3 and anomalies with fundamental and adjoint matter (2022)
Journal Article
Lohitsiri, N., & Sulejmanpasic, T. (2022). Comments on QCD3 and anomalies with fundamental and adjoint matter. Journal of High Energy Physics, 2022(10), Article 81. https://doi.org/10.1007/jhep10%282022%29081

’t Hooft anomaly matching is powerful for constraining the low energy phases of gauge theories. In 3d one common anomaly is the parity anomaly in a T-symmetric theory where one cannot gauge the global symmetry group without breaking the time-reversal... Read More about Comments on QCD3 and anomalies with fundamental and adjoint matter.

Exact results for duality-covariant integrated correlators in N=4 SYM with general classical gauge groups (2022)
Journal Article
Dorigoni, D., Green, M. B., & Wen, C. (2022). Exact results for duality-covariant integrated correlators in N=4 SYM with general classical gauge groups. SciPost Physics, 13, Article 092(2022). https://doi.org/10.21468/scipostphys.13.4.092

We present exact expressions for certain integrated correlators of four superconformal primary operators in the stress tensor multiplet of N = 4 supersymmetric Yang–Mills (SYM) theory with classical gauge group, GN = SO(2N), SO(2N + 1), USp(2N). Thes... Read More about Exact results for duality-covariant integrated correlators in N=4 SYM with general classical gauge groups.

Interacting conformal scalar in a wedge (2022)
Journal Article
Bissi, A., Dey, P., Sisti, J., & Söderberg, A. (2022). Interacting conformal scalar in a wedge. Journal of High Energy Physics, 2022(10), Article 60. https://doi.org/10.1007/jhep10%282022%29060

We study a class of two-point functions in a conformal field theory near a wedge. This is a set-up with two boundaries intersecting at an angle θ. We compute it as a solution to the Dyson-Schwinger equation of motion for a quartic interaction in the... Read More about Interacting conformal scalar in a wedge.

Holographic dissipation from the symplectic current (2022)
Journal Article
Donos, A., Kailidis, P., & Pantelidou, C. (2022). Holographic dissipation from the symplectic current. Journal of High Energy Physics, 2022(10), Article 58. https://doi.org/10.1007/jhep10%282022%29058

We develop analytic techniques to construct the leading dissipative terms in a derivative expansion of holographic fluids. Our basic ingredient is the Crnkovic-Witten symplectic current of classical gravity which we use to extract the dissipative tra... Read More about Holographic dissipation from the symplectic current.

Quantum optimization of complex systems with a quantum annealer (2022)
Journal Article
Abel, S., Blance, A., & Spannowsky, M. (2022). Quantum optimization of complex systems with a quantum annealer. Physical Review A, 106(4), https://doi.org/10.1103/physreva.106.042607

We perform an in-depth comparison of quantum annealing with several classical optimization techniques, namely, thermal annealing, Nelder-Mead, and gradient descent. The focus of our study is large quasicontinuous potentials that must be encoded using... Read More about Quantum optimization of complex systems with a quantum annealer.

Decision making under severe uncertainty on a budget (2022)
Presentation / Conference Contribution
Nakharutai, N., Destercke, S., & Troffaes, M. C. (2022, October). Decision making under severe uncertainty on a budget. Presented at Scalable Uncertainty Management (SUM 2022), Paris, France

Convex sets of probabilities are general models to describe and reason with uncertainty. Moreover, robust decision rules defined for them enable one to make cautious inferences by allowing sets of optimal actions to be returned, reflecting lack of in... Read More about Decision making under severe uncertainty on a budget.

Extremism, segregation and oscillatory states emerge through collective opinion dynamics in a novel agent-based model (2022)
Journal Article
Stokes, B., Jackson, S., Garnett, P., & Luo, J. (2024). Extremism, segregation and oscillatory states emerge through collective opinion dynamics in a novel agent-based model. The Journal of Mathematical Sociology, 48(1), 42-80. https://doi.org/10.1080/0022250X.2022.2124246

Using mathematics to model the evolution of opinions among interacting agents is a rich and growing field. We present a novel agent-based model that enhances the explanatory power of existing theoretical frameworks, corroborates experimental findings... Read More about Extremism, segregation and oscillatory states emerge through collective opinion dynamics in a novel agent-based model.