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๐Ÿ” joerg widmer ๐Ÿ“‚ Physics
Showing 9083 results for "joerg widmer" in Physics
Physics Preprint PDF DOI

TESS Asteroseismology of Red Giants in the Old Metal-Rich Open Clusters NGC 188 & NGC 6791

Madeline Howell, Jennifer A. Johnson, Marc H. Pinsonneault, Leslie M. Morales, Jamie Tayar, John D. Roberts, Dennis Stello, Madeleine McKenzie ยท 2026

Open clusters are fundamental laboratories for investigating stellar and Galactic evolution, and serve as important benchmarks for asteroseismic analyses. Using a boutique method to analyze TESS photoโ€ฆ

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Physics Preprint PDF DOI

Propulsion and far-field hydrodynamics of linked-sphere microswimmers with viscoelastic deformability

Vimal Singh, Akash Choudhary ยท 2026

Viscoelasticity governs the locomotion strategies of deformable microorganisms, rendering it a fundamental mechanical property of microbial motility and an integral component in the design of envisionโ€ฆ

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Galaxy Zoo Bar Lengths: A Catalogue of Measurements from Hubble Space Telescope Images and the Evolution of Galactic Bar Structure at z < 1

Tenley Hutchinson-Smith, Brooke D. Simmons, Karen L. Masters, Alison Coil, Izzy Garland, Tobias Geron, Sandor Kruk, Chris Lintott, Rebecca Smethurst, Amauri Tapia, Kyle Willett, Elisabeth Baeten, Sylvia Beer, Michael L. Peck, Julianne Wilcox ยท 2026

Understanding the role of galactic scale bars in disk galaxy evolution requires detailed measurements of bar properties across galaxies hosting bars at many redshifts. We present measurements of bar lโ€ฆ

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Physics Preprint PDF DOI

Beyond Cloud-9: The case for discovering more HI-rich failed halos

Jorge Moreno, Coral Wheeler, Francisco J. Mercado, M. Katy Rodriguez Wimberly, Pratik J. Gandhi, Jenna Samuel, Robert Feldmann, James S. Bullock, Andrew Wetzel, Michael Boylan-Kolchin ยท 2026

HI-rich starless halos, should they exist, hold great promise for elucidating properties of dark matter halos. This Letter examines the properties of HI-rich failed halos at redshift zero across stateโ€ฆ

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Physics Preprint PDF DOI

Coulomb Effects and Wigner-SU(4) Symmetry in He-3 Charge and Magnetic Properties

Xincheng Lin ยท 2026

This work studies the non-perturbative Coulomb corrections to the He-3 binding energy, magnetic moment, and charge and magnetic radii in leading-order (LO) Pionless Effective Field Theory (Pionless EFโ€ฆ

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Physics Preprint PDF DOI

Can BLR line profile shape improve single-epoch black hole mass estimates?

Lizvette Villafana, Tommaso Treu, Shu Wang, Misty C. Bentz, Brendon J. Brewer, Aaron J. Barth, Jong-Hak Woo, Matthew A. Malkan, Vardha N. Bennert, Vivian U ยท 2026

The virial coefficient ($f$), which is meant to encapsulate broad-line region (BLR) geometry and kinematics, remains one of the largest sources of systematic uncertainty in black hole mass estimates fโ€ฆ

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Physics Preprint PDF DOI

Dynamical dimer structure factor of the triangular $S=1/2$ Heisenberg antiferromagnet

Markus Drescher, Laurens Vanderstraeten, Roderich Moessner, Frank Pollmann, Johannes Knolle ยท 2026

The dynamical dimer structure factor is an observable probing spin-singlet excitations of quantum magnets distinct from those commonly studied by the spin structure factor. We report the dimer responsโ€ฆ

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Randomised measurements of a disorder-induced entanglement transition in a neutral atom quantum processor

Apollonas S. Matsoukas-Roubeas, Oscar Scholin, Lucas Sa, Arinjoy De, Majd Hamdan, Alexei Bylinskii, Andrew J. Daley, Dorian A. Gangloff ยท 2026

The development and spread of entanglement in complex quantum systems is central to exploring many-body phenomena out of equilibrium. Measuring entanglement dynamics can shed light on information scraโ€ฆ

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Aromatic rings in the Central Molecular Zone: Benzonitrile

V.M. Rivilla, D. San Andres, M. Sanz-Novo, L. Colzi, I. Jimenez-Serra, A. Lopez-Gallifa, A. Martinez-Henares, A. Megias, S. Martin, B. Tercero, S. Zeng, J. Loreau, M. Ben Khalifa, M. A. Requena-Torres, P. de Vicente ยท 2026

In recent years, several aromatic molecules (benzene-based rings) have been detected in the cold molecular cloud TMC-1, with its CN-derivative, benzonitrile (c-C$_6$H$_5$CN), also identified in other โ€ฆ

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The formation of circumbinary planets through disc fragmentation

Matthew Teasdale, Dimitris Stamatellos ยท 2026

Over 50 circumbinary exoplanets have been discovered in recent years, with several of them being gas giants on wide orbits ($>10$AU). The aim of this work is to investigate whether these planets can fโ€ฆ

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Fates of the sub-stellar objects (FOSSO) II. Evidence for Suppression of Metal Pollution in White Dwarfs by Close Substellar Companions

Zhangliang Chen, Xin-Yue Zhang, Di-Chang Chen, Kejun Wang, Bo Ma, Ji-Wei Xie, Ji-Lin Zhou ยท 2026

Approximately 25--50\% of white dwarfs (WDs) exhibit metal absorption lines in their photospheres, interpreted as evidence of ongoing/recent accretion of planetary debris from remnant systems. Previouโ€ฆ

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Pressure sensing by electro-mechanical coupling in compliant dielectric membranes polarized by a bias voltage

Bart Van Damme, Alexandre Brun d'Arre, Patrick Danner, Dorina Opris, Andrea Bergamini ยท 2026

Among smart materials, piezoelectric materials occupy a very prominent position for sensing and actuation functions. Combined with simple or more advanced shunts, they are also proposed in various vibโ€ฆ

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Spin excitation of the Heisenberg antiferromagnet with frustration: from the bounce-lattice antiferromagnet through the maple-leaf-lattice antiferromagnet to the exact-dimer system

Hiroki Nakano, Toru Sakai ยท 2026

The spin-S Heisenberg antiferromagnet on the two-dimensional lattice is investigated for S=1/2 and S=1. We consider interaction at isolated dimers ($J_{\rm d}$) and interaction bonds that form the bouโ€ฆ

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Wigner functions, negativity volumes, and experimental generation of Pegg-Barnett phase-operator eigenstates

Hiroo Azuma ยท 2026

In this paper, we study the non-Gaussianity of the eigenstates of the Pegg-Barnett phase observable. By computing the Wigner functions of the eigenstates, we confirm that they take negative values in โ€ฆ

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Anomalous Mean-Squared Displacement in Quantum Active Matter from a Wigner Phase-Space Framework

Sangyun Lee, Yehor Tuchkov, Alexander P. Antonov, Benno Liebchen, Hartmut Lowen, Giovanna Morigi, Michael te Vrugt ยท 2026

Active matter is driven out of equilibrium by a local influx of energy. While classical active matter has been extensively studied, the extension of active matter concepts to quantum systems has been โ€ฆ

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The exact column texture: tree-level Yukawa universality in heterotic $Z_3 \times Z_3$ orbifolds

Navid Ardakanian ยท 2026

On $T^6/(Z_3 \times Z_3)$ heterotic orbifolds where three quark generations arise from $Z_3$ fixed-point triplication, we prove that the leading-order tree-level Yukawa amplitude -- the three-point coโ€ฆ

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Thermal background reduction for mid-infrared imaging by low-rank background and sparse point-source modelling

R.A.R. Moens, A.G.M. Pietrow, B. Brandl, R. Van de Plas ยท 2026

Mid-infrared astronomy from the ground faces critical challenges in accurately detecting and quantifying sources due to the dominant spatially and time-variable background noise. Moreover, chopping anโ€ฆ

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Dynamic Moir\'e Potentials and Robust Wigner Crystallization in Large-Scale Twisted Transition Metal Dichalcogenides

Yifan Ke, Chuanjing Zeng, Xinming Qin, Wei-Lin Tu, Wei Hu, Jinglong Yang ยท 2026

Understanding the dynamical evolution of large-scale moir\'e systems is crucial for connecting theoretical predictions with experimental observations. Here we develop a machine-learning-based workflowโ€ฆ

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Self-phoretic colloids in chiral active fluids

Michalis Chatzittofi, Yuto Hosaka, Andrej Vilfan, Ramin Golestanian ยท 2026

Autonomous and driven transport in chiral active fluids have been shown to exhibit features that cannot be accommodated within the classical formulation of fluid mechanics, due to the role of odd viscโ€ฆ

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Design optimization of flux concentrators for magnetic tunnel junctions-based sensors

Thomas Brun, Javier Rial, Lucia Risoli, Johanna Fischer, Philippe Sabon, Guillaume Jannet, Matthieu Kretzschmar, Helene Bea, Claire Baraduc ยท 2026

Miniaturized, ultra-sensitive and easily integrable magnetometers are needed for many applications, like space exploration or health monitoring. Achieving this goal requires a magnetic sensor with higโ€ฆ

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