Tootfinder

Partial Eigenvalue Assignment for Nonlinear Systems
Shang Wang, Xiaodong Cheng, Yu Kawano, Peter van Heijster
https://arxiv.org/abs/2509.09256 https://arxi…

Partial Eigenvalue Assignment for Nonlinear Systems
In this paper, we study control design methods for assigning a subset of nonlinear right or left eigenvalues to a specified set of scalar-valued functions via nonlinear Sylvester equations. This framework can be viewed as a generalization of partial linear eigenvalue assignment (also referred to as partial pole placement) for linear systems. First, we propose a method for partial nonlinear right eigenvalue assignment via state feedback using a nonlinear Sylvester equation and a condition for pr…

Nonparametric Bayesian Multi-Treatment Mixture Cure Survival Model with Application in Pediatric Oncology
Peter Chang, Arkaprava Roy, John Kairalla
https://arxiv.org/abs/2508.08975

Nonparametric Bayesian Multi-Treatment Mixture Cure Survival Model with Application in Pediatric Oncology
Heterogeneous treatment effect estimation is critical in oncology, particularly in multi-arm trials with overlapping therapeutic components and long-term survivors. These shared mechanisms pose a central challenge to identifying causal effects in precision medicine. We propose a novel covariate-dependent nonparametric Bayesian multi-treatment cure survival model that jointly accounts for common structures among treatments and cure fractions. Through latent link functions, our model leverages sh…

Low-density InGaAs/AlGaAs Quantum Dots in Droplet-Etched Nanoholes
Saimon F. Covre Da Silva, Ailton J. Garcia Jr, Maximilian Aigner, Christian Weidinger, Tobias M. Krieger, Gabriel Undeutsch, Christoph Deneke, Ishrat Bashir, Santanu Manna, Melina Peter, Ievgen Brytavskyi, Johannes Aberl, Armando Rastelli
https://arxiv.org/abs/2508.08400

Low-density InGaAs/AlGaAs Quantum Dots in Droplet-Etched Nanoholes
Over the past two decades, epitaxial semiconductor quantum dots (QDs) have demonstrated very promising properties as sources of single photons and entangled photons on-demand. Among different growth methods, droplet etching epitaxy has allowed the growth of almost strain-free QDs, with low and controllable surface densities, small excitonic fine structure splitting (FSS), and fast radiative decays. Here, we extend the local droplet etching technique to In(Ga)As QDs in AlGaAs, thereby increasing…

Cavity-based optical switching via phase modulation in warm rubidium vapor
Georgia Booton, Tabijah Wasawo, William O. C. Davis, Cameron McGarry, K. R. Rusimova, Alex O. C. Davis, Josh Nunn, Peter J. Mosley
https://arxiv.org/abs/2508.06255

Cavity-based optical switching via phase modulation in warm rubidium vapor
Optical switching remains a key outstanding challenge for scalable fault-tolerant photonic quantum computing due to the trade-off between speed, bandwidth, and loss. Scalable quantum photonics demands all three, to enable high computational clock rates and resource efficient scaling to large systems. We present a cavity-based optical switch that overcomes this limitation, demonstrating 22 ns rise time, insertion loss of 2.4 dB, and 17.5 dB extinction ratio. All-optical control is achieved via p…

Quantifying the direct and indirect impact of COVID-19 vaccination: evidence from Victoria, Australia
Lixin Lin, Haydar Demirhan, Peter Eizenberg, James M. Trauer, Lewi Stone
https://arxiv.org/abs/2508.08763

Quantifying the direct and indirect impact of COVID-19 vaccination: evidence from Victoria, Australia
Vaccines not only directly protect vaccinated individuals but also contribute to protect the entire population via indirect herd-immunity benefits. However, researchers have long struggled to quantify these indirect effects at the population level, hindering assessment of vaccination program effectiveness. We developed a new method to estimate these effects, thereby markedly improving measures of the number of infections, hospitalizations, and deaths averted by vaccination. Our population-based…

Correlation functions for $n\,\bar{D}_{s1}(2460)$ and $n\,\bar{D}_{s1}(2536)$
Breno Agat\~ao, Pedro Brand\~ao, A. Martinez Torres, K. P. Khemchandani, Luciano M. Abreu, E. Oset
https://arxiv.org/abs/2508.05825

Correlation functions for $n\,\bar{D}_{s1}(2460)$ and $n\,\bar{D}_{s1}(2536)$
We study the interaction of the $n \bar {D}_{s1}(2460)$ and $n \bar {D}_{s1}(2536)$ systems from the perspective that the $D_{s1}(2460)$ and $D_{s1}(2536)$ states are molecular states of $K D^*$ and $K^*D$, respectively. We use an improved version of the fixed center approximation to the Faddeev equations which fulfills exact elastic unitarity at the threshold of the systems. We predict the existence of resonant states below threshold and also determine the scattering length, effective range an…

i guess i have skills

Normative Modelling in Neuroimaging: A Practical Guide for Researchers
Nida Alyas, Jonathan Horsley, Peter N. Taylor, Yujiang Wang, Karoline Leiberg
https://arxiv.org/abs/2509.07237

Normative Modelling in Neuroimaging: A Practical Guide for Researchers
Normative modelling is an increasingly common statistical technique in neuroimaging that estimates population-level benchmarks in brain structure. It enables the quantification of individual deviations from expected distributions whilst accounting for biological and technical covariates without requiring large, matched control groups. This makes it a powerful alternative to traditional case-control studies for identifying brain structural alterations associated with pathology. Despite the avail…

Bounds on the plus-pure thresholds of some hypersurfaces in (ramified) regular rings
Marta Benozzo, Vignesh Jagathese, Vaibhav Pandey, Pedro Ram\'irez-Moreno, Karl Schwede, Prashanth Sridhar
https://arxiv.org/abs/2509.07217

Bounds on the plus-pure thresholds of some hypersurfaces in (ramified) regular rings
We study the plus-pure threshold (ppt) of hypersurfaces in mixed characteristic. We show that the ppt limits to the $F$-pure threshold as we ramify the base DVR. Additionally, we show that analogs of some positive characteristic extremal singularities cannot attain the same `extremal' ppt values in the unramified setting. We also study equations which have controlled ramification when we adjoin their $p$-th roots as well as equations which admit $p$-th roots modulo $p^2$ (or modulo other values…

Quantum Hall Resistance and Quantum Hall Plateaus from Edge State Quantization
Pedro Pereyra
https://arxiv.org/abs/2508.05912 https://arxiv.org/pdf/2508.05…

Quantum Hall Resistance and Quantum Hall Plateaus from Edge State Quantization
Despite the extensive literature on the quantum Hall effect (QHE), a direct derivation of the phenomenological formula $ρ_{xy} = h/e^2ν$ from first principles has remained elusive. In this work, we revisit the Landau and Landauer-Büttiker formalisms and impose hard-wall boundary conditions on the wavefunction, an essential but often overlooked constraint. This condition quantizes the guiding center position and the longitudinal wave number $k_x$, leading naturally to a discrete number of edg…