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๐Ÿ” chris parnin ๐Ÿ“‚ Physics
Showing 5159 results for "chris parnin" in Physics
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Beyond the Separatrix: Analytic Continuation of Darwin Variables for Plunging Geodesics in Schwarzschild Spacetime

Francisco M. Blanco ยท 2026

We study geodesic motion of a test particle in Schwarzschild spacetime. Bound and scattering geodesics are commonly described using Darwin variables, which provide a convenient parametrization of the โ€ฆ

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Particle seismology: mechanical and gravitational properties from parton-hadron duality

Enrique Ruiz Arriola, Wojciech Broniowski ยท 2026

The internal structure of hadrons is characterized by form factors which correspond to matrix elements of currents. Among those, the stress-energy-momentum tensor is a universally conserved quantity pโ€ฆ

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The Fock-Darwin-Darboux system: eigenstates, information entropies and dispersion-like measures

Ignacio Baena-Jimenez, Angel Ballesteros, Ivan Gutierrez-Sagredo ยท 2026

The Fock-Darwin (FD) quantum system describes the motion on the plane of a charged particle under the action of an isotropic oscillator potential together with a perpendicular constant magnetic field.โ€ฆ

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Collisional energy loss distribution of a fast parton in a hot or dense QCD medium

G. Jackson, S. Peigne ยท 2026

We compute the probability distribution for collisional energy loss of an ultrarelativistic parton crossing a quark-gluon plasma. This collisional quenching weight has not been determined previously, โ€ฆ

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Uncovering Exotic Paired States in the 2D Spin-Imbalanced Fermi Gas with Neural Wave Functions

Wan Tong Lou, Gino Cassella, Andres Perez Fadon, Halvard Sutterud, David Pfau, James S. Spencer, Johannes Knolle, W.M.C. Foulkes ยท 2026

We study the zero-temperature phase diagram of the 2D spin-imbalanced Fermi gas with short-ranged attractive interactions using the recently developed neural network variational Monte Carlo method witโ€ฆ

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Flapping Wings Amplify Pitch Stability: Insights from a Robotic Bird

Ronan Gissler, Kenneth S. Breuer ยท 2026

Using a flapping robot in a wind tunnel, we show that flapping faster amplifies existing longitudinal static stability (focusing on the pitch stiffness) and can even make an unstable flier stable. We โ€ฆ

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Four-dimensional QCD equation of state from a quasi-parton model with physics-informed neural networks

Fu-Peng Li, Long-Gang Pang, Guang-You Qin ยท 2026

The equation of state (EoS) of strongly interacting matter at finite temperature and chemical potentials (baryon, charge, and strangeness) is a crucial input for hydrodynamic simulations of relativistโ€ฆ

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A microwave super-resolution imaging approach towards breast cancer margin mapping

Harry Penketh, Sonal Saxena, Michal Mrnka, Cameron P. Gallagher, Caitlin Lloyd, Diksha Garg, Christopher R. Lawrence, Nicholas E. Grant, John D. Murphy, David B. Phillips, Ian R. Hooper, Nick Stone, Euan Hendry ยท 2026

Accurate characterisation of margins in excised breast cancer tumours is critical to the success of surgical interventions, yet margin status is typically confirmed post-operatively using histopatholoโ€ฆ

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Observation of impact parameter dependent modifications of nuclear parton distributions in photonuclear Pb+Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV with the ATLAS detector

ATLAS Collaboration ยท 2026

High-energy photonuclear ($\gamma+A$) scattering in ultra-peripheral heavy-ion collisions provides a unique probe of nuclear structure. This Letter studies the dependence of $\gamma+A$ jet production โ€ฆ

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Two-Point Pad\'{e} Approximants for the Deflection of Light in the Schwarzschild Black Hole Metric

Don N. Page ยท 2026

The deflection angle of a light ray passing the Schwarzschild (spherically symmetric vacuum) black hole was calculated by Charles Galton Darwin in 1959 in terms of the elliptic integral of the first kโ€ฆ

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Generalized parton distributions of valence, sea, and gluon components of the proton

Yiping Liu, Siqi Xu, Chandan Mondal, Xingbo Zhao, James P. Vary ยท 2026

We compute the generalized parton distributions (GPDs) of valence quarks, sea quarks, and gluons in the proton using light-front wave functions obtained within the basis light-front quantization (BLFQโ€ฆ

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Classically Forbidden Signatures of Quantum Coherence in the Mesoscopic Lipkin-Meshkov-Glick Model

Stavros Mouslopoulos ยท 2026

We derive strict quantitative conditions under which a collective quantum system of N~370 spins exhibits classically forbidden temporal correlations in a spinor Bose-Einstein condensate (BEC). The Lipโ€ฆ

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A Digital Optical Switch Based on a Thermally Tuned Multimode Waveguide Grating Filter

Hongyu Wang, Xudong Gao, Chuanneng Luo, Haijiang Yu, Mengxue Tao, Hanlin Qin ยท 2026

All-optical switching technology is a key solution to the future energy crisis in AI computing, where the performance of optical switches plays a critical role. Conventional integrated optical switcheโ€ฆ

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Divergent spin conductivity on the verge of ferromagnetic quantum criticality

Sondre Duna Lundemo, Asle Sudb{o} ยท 2026

We show that the spin conductivity of a metal approaching a ferromagnetic quantum critical point exhibits divergent fluctuation corrections. This effect arises from critical spin fluctuations and consโ€ฆ

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Resonance- and Width-aware Parton Shower Evolution and NLO Matching

Stefan Hoche, Daniel Reichelt ยท 2026

We introduce a technique for the next-to-leading order accurate simulation of $e^+e^-\to W^+W^-b\bar{b}$ that respects the resonant nature of the process above and near the top-quark pair production tโ€ฆ

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The Impact of Qubit Connectivity on Quantum Advantage in Noisy IQP Circuits

Leonardo Placidi, Enrico Rinaldi, Keisuke Fujii, Chen-Yu Liu ยท 2026

Instantaneous Quantum Polynomial-time (IQP) circuits are a candidate for demonstrating near-term quantum advantage, as their sampling task is believed to be classically hard in the ideal theoretical sโ€ฆ

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Energies and lifetimes of the 9p and 10p excited states in atomic francium

P. Lassegues, A. Ajayakumar, M. Athanasakis-Kaklamanakis, O. Ahmad, M. Au, J. Berbalk, D. Bettaney, B. van den Borne, A. Chakraborty, T.E. Cocolios, M. Duggan, C. Fajardo, K.T. Flanagan, R.F. Garcia Ruiz, R. de Groote, D. Gonzalez-Acevedo, A. Kastberg, A. Koszorus, L. Lalanne, K.M. Lynch, D.T. McLeroy, A. McGlone, G. Neyens, L. Nies, L. Quanjel, A. Raggio, J. Reilly, B.K. Sahoo, J. Snikeris, J. Warbinek, S.G. Wilkins, X.F. Yang ยท 2026

We present the first measurement of 9p 2P1/2,3/2 and 10p 2P1/2,3/2 excited levels absolute wavenumbers and radiative lifetime in francium. We used the Collinear Resonance Ionization Spectroscopy (CRISโ€ฆ

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Fidelity-informed neural pulse compilation of a continuous family of quantum gates with uncertainty-margin analysis

Arash Fath Lipaei, Ebrahim Khaleghian, Selin Aslan, Gani Goral, Zidong Lin, Ozgur E. Mustecapl{i}oglu ยท 2026

We develop a fidelity-informed neural pulse-compilation framework for a continuous family of single-qubit gates on a three-qubit liquid-state nuclear magnetic resonance (NMR) processor. Instead of decโ€ฆ

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Extraction of Pion Unpolarized Quark Generalized Parton Distribution from Charge Form Factors

Satyajit Puhan, Shubham Sharma, Narinder Kumar, Harleen Dahiya ยท 2026

Based on a global fit to experimental measurements of the pion electromagnetic form factor and parton distribution functions (PDFs), we report a data-driven determination of the unpolarized quark geneโ€ฆ

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Spin-($0$, $1$, $\frac{1}{2}$) Field Perturbations, Quasinormal Modes, Overtones, Greybody Factors and Strong Cosmic Censorship of Einstein-Skyrme Black Holes

Faizuddin Ahmed, Ahmad Al-Badawi, Izzet Sakall{i} ยท 2026

We carry out a multi-spin perturbation-theory study of the four-dimensional Einstein-Skyrme (ES) anti-de Sitter (AdS) black hole (BH), whose lapse $f(r)=1-8\pi K-2M/r+4\pi K\lambda/r^{2}$ inherits twoโ€ฆ

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