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Physics Preprint PDF DOI

Galilean boost invariance does not survive the trace: symmetry breaking in open quantum systems

Leonardo F. Calderon, Esteban Marulanda, Santiago Morales, Leonardo A. Pachon · 2026

Tracing out a Galilean-invariant Caldeira-Leggett environment breaks Galilean boost covariance of the reduced dynamics, while spatial translations and rotations survive intact. An operator-level analy…

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Physics Preprint PDF DOI

Testing Scale-Dependent Modified Gravity with DESI DR1

D. Gonzalez, G. Niz, A. Aviles, C. Garcia-Quintero, H.E. Noriega, J. Aguilar, S. Ahlen, D. Bianchi, D. Brooks, T. Claybaugh, A. de la Macorra, A. de Mattia, P. Doel, S. Ferraro, J. E. Forero-Romero, E. Gaztanaga, S. Gontcho A Gontcho, G. Gutierrez, C. Hahn, K. Honscheid, D. Huterer, M. Ishak, R. Joyce, S. Juneau, R. Kehoe, D. Kirkby, M. Landriau, L. Le Guillou, M. E. Levi, M. Manera, A. Meisner, R. Miquel, S. Nadathur, W.J. Percival, I. Perez-Rafols, G. Rossi, L. Samushia, E. Sanchez, D. Schlegel, H. Seo, J. Silber, D. Sprayberry, G. Tarle, B. A. Weaver, R. Zhou (DESI Collaboration) · 2026

The Dark Energy Spectroscopic Instrument (DESI) provides an unprecedented opportunity to test deviations from general relativity (GR) that introduce a new physical scale within its redshift range. Usi…

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Mathematics Preprint PDF DOI

Deformation of pairs of $\mathbb{P}^3$ and hypersurfaces

Jungkai Chen, Yongnam Lee, Phin-Sing Soo · 2026

Motivated by DeVleming's work on moduli of surfaces in $\mathbb{P}^3$ and Chen-Hu-Jiang's work on moduli of threefolds with volume $2$ and geometric genus $4$, we study the deformation of pairs of $\m…

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Computer Science Preprint PDF DOI

Hu\'i S\`u: Co-constructing a Dual Feedback Apparatus

Yichen Wang, Charles Patrick Martin · 2026

This performance presents a duet between two intelligent musical instruments, S\`u (to trace back; to go upstream) and Agentier (playing on agentic clavier), and their human performers, connected thro…

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Physics Preprint PDF DOI

Non-Abelian Particle-Loop, Fracton, and Planon Condensation in Cage-Net Models

Yifei Wang, Yu Zhao, Yingcheng Li, Hao Song, Yidun Wan · 2026

We present a framework for non-Abelian p-loop, fracton, and planon condensation in 3+1 dimensions by constructing extended cage-net fracton models using decoupled layers of the Hu-Geer-Wu (HGW) string…

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Physics Preprint PDF DOI

Solution of a large nonlinear recurrent neural network at fixed connectivity

Albert J. Wakhloo · 2026

We calculate the moments and response functions of a nonlinear random recurrent neural network in the large $N$ limit. Our approach does not require averaging over synaptic weights and gives the first…

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Medicine & Health Preprint PDF DOI

Visualising Parker Weighting in Short-Scan Cone-Beam Micro-CT: A Practical Reference

Falk L Wiegmann, Nancy L Ford · 2026

Short-scan FDK reconstruction is widely used in preclinical cone-beam micro-CT because it reduces scan time and radiation dose, and because the large volume sizes typical of micro-CT make iterative me…

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Medicine & Health Preprint PDF DOI

Benchmarking Open-Source FDK Against Commercial and Iterative Reconstruction Methods for Preclinical Micro-CBCT

Falk L Wiegmann, Nancy L Ford · 2026

Preclinical micro-CT reconstruction involves large projection sizes and volumes that make iterative methods costly - 5x to 50x slower than analytic alternatives on modern GPUs. Whether this cost is ju…

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AI & Data Science Preprint PDF DOI

The Sample Complexity of Multicalibration

Natalie Collina, Jiuyao Lu, Georgy Noarov, Aaron Roth · 2026

We study the minimax sample complexity of multicalibration in the batch setting. A learner observes $n$ i.i.d. samples from an unknown distribution and must output a (possibly randomized) predictor wh…

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Mathematics Preprint PDF DOI

Small scale creation in 2D gravity-capillary water waves with vorticity

Yuanpeng Tu · 2026

In this paper, we consider 2D incompressible Euler equations in an unbounded domain with a free surface and a fixed bottom at finite depth. The fluid motion is under the influence of gravity and surfa…

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Physics Preprint PDF DOI

Obstructions to universality in globally controlled qubit graphs

Roberto Gargiulo, Roberto Menta, Vittorio Giovannetti, Robert Zeier · 2026

Global control offers a promising route to scalable quantum computing. A recent conjecture by Hu et al. (arXiv:2508.19075) proposes that any connected qubit graph equipped with global Ising-type inter…

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Mathematics Preprint PDF DOI

The Gomory-Hu inequality and trees

Oleksiy Dovgoshey, Olga Rovenska · 2026

Let $G=(V,E)$ be a finite connected graph with vertex set $V$ and edge set $E$, and let $U(G)$ be the set of all ultrametric spaces $(V,d_l)$ generated by vertex labelings $l\colon V \to \mathbb R^+$.…

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Mathematics Preprint PDF DOI

Gelfand--Kirillov dimension and mod $p$ cohomology for inner forms of $\mathrm{GL}_2$

Andrea Dotto, Bao V. Le Hung · 2026

Under standard assumptions, we compute the GK-dimension of Hecke eigenspaces in the mod $p$ cohomology of an inner form $D^\times$ of $\mathrm{GL}_2$ over a totally real field unramified at $p$, allow…

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AI & Data Science Preprint PDF DOI

A Deep Equilibrium Network for Hyperspectral Unmixing

Chentong Wang, Jincheng Gao, Fei Zhu, Jie Chen · 2026

Hyperspectral unmixing (HU) is crucial for analyzing hyperspectral imagery, yet achieving accurate unmixing remains challenging. While traditional methods struggle to effectively model complex spectra…

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Mathematics Preprint PDF DOI

Stochastic fractional heat equation with general rough noise

Bin Qian, Ran Wang · 2026

Consider the following nonlinear one-dimensional stochastic fractional heat equation $$\frac{\partial }{\partial t}u(t, x)= -(-\Delta)^{\alpha/2}u(t, x) +\sigma(t,x,u(t,x)) \dot{W}(t, x), $$ where $…

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Mathematics Preprint PDF DOI

A Construction of $C^{r}$ Conforming Finite Elements on the Alfeld Split in Any Dimension

Ting Lin, Hendrik Speleers, Qingyu Wu · 2026

Constructing $C^r$ conforming finite element spaces in any dimension is a long-standing problem. For general triangulations, this problem was recently addressed by Hu-Lin-Wu (2024), under certain cond…

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AI & Data Science Preprint PDF DOI

Looking into a Pixel by Nonlinear Unmixing -- A Generative Approach

Maofeng Tang, Hairong Qi · 2026

Due to the large footprint of pixels in remote sensing imagery, hyperspectral unmixing (HU) has become an important and necessary procedure in hyperspectral image analysis. Traditional HU methods rely…

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Engineering Preprint PDF DOI

Underdetermined Blind Source Separation via Weighted Simplex Shrinkage Regularization and Quantum Deep Image Prior

Chia-Hsiang Lin, Si-Sheng Young · 2026

As most optical satellites remotely acquire multispectral images (MSIs) with limited spatial resolution, multispectral unmixing (MU) becomes a critical signal processing technology for analyzing the p…

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AI & Data Science Preprint PDF DOI

Mamba-driven MRI-to-CT Synthesis for MRI-only Radiotherapy Planning

Konstantinos Barmpounakis, Theodoros P. Vagenas, Maria Vakalopoulou, George K. Matsopoulos · 2026

Radiotherapy workflows for oncological patients increasingly rely on multi-modal medical imaging, commonly involving both Magnetic Resonance Imaging (MRI) and Computed Tomography (CT). MRI-only treatm…

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AI & Data Science Preprint PDF DOI

HUydra: Full-Range Lung CT Synthesis via Multiple HU Interval Generative Modelling

Antonio Cardoso, Pedro Sousa, Tania Pereira, Helder P. Oliveira · 2026

Currently, a central challenge and bottleneck in the deployment and validation of computer-aided diagnosis (CAD) models within the field of medical imaging is data scarcity. For lung cancer, one of th…

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