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Showing 840 results for "gerd leuchs" in Physics · Preprint
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Order by disorder up to arbitrarily high temperature

Ravish Mehta · 2026

We prove that a class of classical lattice models on $\mathbb{Z}^d$ ($d \geq 2$) with on-site space $\mathbb{N}_0$ exhibits long-range checkerboard order at sufficiently high temperature. The model ha…

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Sachs Equations and Plane Waves VI: Penrose Limits

Jonathan Holland, George Sparling · 2026

We prove that the Penrose limit of a Lorentzian metric along an affinely parametrized null geodesic is intrinsic, but intrinsic on a weighted associated-graded model determined by the null filtration …

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Supersymmetry, Supergravity and Non--Perturbative Dynamics of Gauge Theories

Tetiana Obikhod · 2026

We present a review of supersymmetry, supergravity, and the non-perturbative dynamics of gauge theories, tracing a path from the supersymmetry algebra to moduli stabilisation and de~Sitter vacua in st…

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Glauber-Lachs formula-based analysis of three-pion Bose-Einstein correlation data at 7 TeV from the LHCb Collaboration

Takuya Mizoguchi, Seiji Matsumoto, Minoru Biyajima · 2026

We combine the Glauber--Lachs formula from quantum optics and the two-component picture for pion production to analyze data on two- and three-pion Bose--Einstein correlation at 7 TeV from the LHCb Col…

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Beyond the Dilute Instanton Gas: Resurgence with Exact Saddles in the Double Well

Aurelien Dersy, Matthew D. Schwartz · 2026

The path-integral approach to the double well has long been limited by the dilute instanton gas approximation. We show that if the finite Euclidean-time structure is taken seriously by using exact sad…

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Association between projectile and target excitation in slow Ar$^{q+}$-CO$_2$ collisions

Akash Srivastav, Sumit Srivastav, Vishnu P, Bhas Bapat · 2026

We investigate ionic fragmentation of CO$_2^{n+}$~\mbox{($2\le n\le 4$)} produced in collisions with Ar$^{q+}$~\mbox{($4\le q\le 16$)} projectiles at a collision velocity of $\approx$~0.3~a.u. For mos…

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Observing complementary Lucas sequences using non-Hermitian zero modes

Li Ge · 2026

The Lucas sequences are integers defined by a homogeneous recurrence relation. They include the well-known Fibonacci numbers, which appear abundantly in nature. The complementary Lucas numbers, define…

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Process Development and First Cryogenic Operation of Compact Germanium Ring-Contact HPGe Prototypes

Kunming Dong, Shasika Panamaldeniya, Dongming Mei · 2026

Rare-event experiments such as LEGEND-1000 require high-purity germanium (HPGe) detectors with excellent energy resolution, low electronic noise, and scalable low-background packaging. The germanium r…

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First results from LEGEND-200: searching for $0\nu\beta\beta$ decay in $^{76}$Ge

Giovanna Saleh (on behalf of the LEGEND Collaboration) · 2026

The LEGEND Experiment searches for the neutrinoless double beta (0$\nu\beta\beta$) decay of $^{76}$Ge employing active high purity germanium detectors enriched in $^{76}$Ge beyond 86%. LEGEND's experi…

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Capillary filling of star polymer melts in nanopores

Jianwei Zhang, Jinyu Lei, Pu Feng, George Floudas, Guangzhao Zhang, Jiajia Zhou · 2026

Topology of polymer profoundly influences on its behavior. However, its effect on imbibition dynamics remains poorly understood. In the present work, capillary filling (during imbibition and following…

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Modeling of a magnetic field sensor based on spin Hall magnetoresistance

Syeda Farwa Bukhari, Alessandro Magni, Witold Skowronski, Elena Losero, Vittorio Basso, Carlo Appino, Piotr Wisniowski, Juergen Langer, Berthold Ocker, Dario Daghero, Michaela Kuepferling · 2026

Next-generation spintronic sensors aim to overcome the limitations of traditional tunneling-magnetoresistance (TMR) devices, such as complex manufacturing, high $1/f$ noise, and significant offsets. T…

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Comment on "Application of the three-dimensional telegraph equation to cosmic-ray transport" (arXiv:1606.08272)

Andrei Galiautdinov · 2026

In a recent publication [R. C. Tautz and I. Lerche, Res. Astron. Astrophys. 16, 162 (2016); arXiv:1606.08272], the authors present a derivation of the Green's function for the three-dimensional telegr…

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Quantum Computing, Ising Formulation, and the Traveling Salesman Problem

Omer Gurevich, Maor Matityahu, Tal Mor · 2025

Ising formulation is important for many NP problems (Lucas, 2014). This formulation enables implementing novel quantum computing methods including Quantum Approximate Optimization Algorithm and Variat…

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Investigating the signs of evolutionary characteristics in the energy spectrum of shock wave acceleration

Xu-Lin Dong, Wei-Kang Gao, Yi-Qing Guo, Shu-Wang Cui · 2025

Under ideal conditions, the theory of shock acceleration for cosmic rays predicts that different elements should exhibit strictly identical spectral indices when accelerated to the same rigidity (R). …

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Geometry and Arithmetic of Special Loci in the Moduli Spaces of Type II String Theory

Paul Blesse, Janis Ducker, Albrecht Klemm, Julian F. Piribauer · 2025

We use Dwork's deformation method to calculate the Hasse-Weil Zeta function of multi-parameter families of Calabi-Yau three and fourfolds. This information is used to identify subslices of codimension…

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Non-invertible defects from the Conway SCFT to K3 sigma models II: duality and Fibonacci defects

Roberta Angius, Stefano Giaccari, Sarah M. Harrison, Roberto Volpato · 2025

We continue the study, initiated in [hep-th:2504.18619], of topological defect lines (TDLs) in the Conway module $V^{f \natural}$ and K3 non-linear sigma models (NLSMs). In the case of $V^{f \natural}…

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Capillary Filling Dynamics in Polygonal Tubes

Chen Zhao, Yu Huang, Tingxuan Chen, Jiaxuan Li, Jiajia Zhou, Masao Doi · 2025

We study the dynamics of capillary filling in tubes of regular polygon cross-section. Using Onsager variational principle, we derive a coupled ordinary differential equation and partial differential e…

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Capillary flow simulation with the phase-field-based lattice Boltzmann solver

R. Thirumalaisamy, S. Kim, H. Otomo, J. Jilesen, R. Zhang · 2025

The phase-field-based lattice Boltzmann (LB) model has been developed to perform high fidelity multiphase flow simulations. Its ability to accurately handle high density ratio and surface tension effe…

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Depletion-limited Effective Hall mobility in Micrometer-Scale High-Purity Germanium Crystals

Narayan Budhathoki, Dongming Mei, Sanjay Bhattarai, Sunil Chhetri, Kunming Dong, Shasika Panamaldeniya, Athul Prem, Austin Warren · 2025

Electrostatic effects can strongly constrain charge transport in thinned high-purity germanium (HPGe), with direct implications for radiation detectors and Ge-based electronic and quantum devices. We …

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Exact Combinatorial Density of States for the Critical 1D Ising Model

Bastian Castorene, Francisco J. Pena, Martin HvE Groves, Patricio Vargas · 2025

This work presents an exact microcanonical combinatorial analysis of the one-dimensional antiferromagnetic Ising model. At the primary ground-state level crossing $B/J=2$, degeneracies follow the Fibo…

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