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๐Ÿ” nicolas delfosse ๐Ÿ“‚ Physics
Showing 299 results for "nicolas delfosse" in Physics
Physics Preprint PDF DOI

MG-NECOLA: A Field-Level Emulator for $f(R)$ Gravity and Massive Neutrino Cosmologies

J. Bayron Orjuela-Quintana, Mauricio Reyes, Elena Giusarma, Marco Baldi, Neerav Kaushal, Cesar A. Valenzuela-Toledo ยท 2026

Accurate modeling of non-linear gravitational dynamics is essential for constraining extensions to the standard cosmological model using large-scale structure observations. While high-resolution $N$-bโ€ฆ

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Physics Preprint PDF DOI

Multi-Fidelity Monte-Carlo Estimation of Satellite Drag in Very-Low-Earth Orbit

Jovan Boskovic, Marcel Pfeifer, Andrea Beck ยท 2026

Very-low-Earth orbit drag uncertainty quantification in the rarefied/transitional Knudsen-number regime requires estimating not only the mean drag coefficient but also higher-order moments under atmosโ€ฆ

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Physics Preprint PDF DOI

A Shakhov-based Bhatnagar-Gross-Krook model for polyatomic molecules and for atomic as well as polyatomic mixtures

Marcel Pfeiffer, Franziska Tuttas ยท 2026

The implementation of the Shakhov Bhatnagar-Gross-Krook (SBGK) method in the open-source particle code PICLas is extended for modeling of polyatomic molecules, as well as mixtures including atoms and โ€ฆ

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Physics Preprint PDF DOI

A P-Adaptive Hybridizable Discontinuous Galerkin Spectral Element Method for Electrostatic Particle-in-Cell Simulations

Tobias Ott, Stephen Copplestone, Marcel Pfeiffer ยท 2026

This paper presents a p-adaptive high-order hybridizable discontinuous Galerkin spectral element method (HDG-SEM) for solving the Poisson equation in electrostatic plasma simulations using particle-inโ€ฆ

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Physics Preprint PDF DOI

Chromospheric Flashes in a Solar Pore: Insights from Multi-line Spectropolarimetric Diagnostics

Sandeep Dubey, Christian Beck, Rahul Yadav, Tobias Felipe, Shibu K Mathew ยท 2026

Solar pores are strongly magnetized regions lacking a photospheric penumbra and characterized by predominantly vertical magnetic fields. We present a multi-line study of flashes in a solar pore using โ€ฆ

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Physics Preprint PDF DOI

The correlated matching decoder for the 4.8.8 color code

Yantong Liu, Junjie Wu, Lingling Lao ยท 2025

Color codes present distinct advantages for fault-tolerant quantum computing, such as high encoding rates and the transversal implementation of Clifford gates. However, existing matching-based decoderโ€ฆ

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Physics Preprint PDF DOI

Reducing measurements in quantum erasure correction by quantum local recovery

Ryutaroh Matsumoto ยท 2025

As measurements are costly and prone to errors on certain quantum computing devices, we should reduce the number of measurements and the number of measured qudits as small as possible in quantum erasuโ€ฆ

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Physics Preprint PDF DOI

MG-NECOLA: Fast Neural Emulators for Modified Gravity Cosmologies

J. Bayron Orjuela-Quintana, Mauricio Reyes, Elena Giusarma, Francisco Villaescusa-Navarro, Neerav Kaushal, Cesar A. Valenzuela-Toledo ยท 2025

Observations of the large-scale structure (LSS) provide a powerful test of gravity on cosmological scales, but high-resolution N-body simulations of modified gravity (MG) are prohibitively expensive. โ€ฆ

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Physics Preprint PDF DOI

Towards a Nicolai map for supergravity

Federico Arrighi, Saurish Khandelwal, Olaf Lechtenfeld ยท 2025

We investigate the possibility of a Nicolai map for minimal supergravity in four dimensions. Such a map would allow for the computation of quantum supergravity correlation functions in terms of flat-sโ€ฆ

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Physics Preprint PDF DOI

Alternative threshold function for Bayesian Optimization of Variational Quantum Circuits

Shreyas Dillon ยท 2025

In this paper, we propose an expansion of the Expected Maximum Improvement over Confident Regions (EMICoRe) Variational Quantum Eigensolver (VQE) -- a technique advanced by Nicoli et al., which utilizโ€ฆ

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Physics Preprint PDF DOI

Superrotations are Linkages

Ratindranath Akhoury, Arielle Schutz, David Garfinkle ยท 2025

We show that superrotations can be described using the geometric conformal completion method of Penrose. In particular, superrotation charges can be described and calculated using the linkage method oโ€ฆ

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Physics Preprint PDF DOI

Learning Heat Transport Kernels Using a Nonlocal Heat Transport Theory-Informed Neural Network

Mufei Luo, Charles Heaton, Yizhen Wang, Daniel Plummer, Mila Fitzgerald, Francesco Miniati, Sam M. Vinko, Gianluca Gregori ยท 2025

We present a data-driven framework for the modeling of nonlocal heat transport in plasmas using a nonlocal theory informed neural network trained on kinetic Particle-in-Cell simulations that span bothโ€ฆ

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Physics Preprint PDF DOI

Thermodynamic Evolution of Flaring Loops with Non-local Thermal Transport

S. Belov, T. Parmenter, T. Arber, D. Kolotkov, F. Reale, T. Goffrey ยท 2025

Hot solar coronal loops, such as flaring loops, reach temperatures where the thermal transport becomes non-local. This occurs when the mean-free-path of electrons can no longer be assumed to be small.โ€ฆ

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Physics Preprint PDF DOI

The Backup Program of the Dark Energy Spectroscopic Instrument's Milky Way Survey

Arjun Dey, Sergey E. Koposov, Joan R. Najita, Andrew P. Cooper, B. T. Gansicke, Adam D. Myers, A. Raichoor, Daniel J. Eisenstein, E. F. Schlafly, C. Allende Prieto, Leandro Beraldo e Silva, Ting S. Li, M. Valluri, Stephanie Juneau, Mika Lambert, S. Li, Guillaume F. Thomas, Wenting Wang, Alexander H. Riley, N. Kizhuprakkat, J. Aguilar, S. Ahlen, S. Bailey, D. Bianchi, D. Brooks, T. Claybaugh, A. Cuceu, A. de la Macorra, J. Della Costa, Biprateep Dey, P. Doel, A. Font-Ribera, J. E. Forero-Romero, E. Gaztanaga, S. Gontcho A Gontcho, G. Gutierrez, J. Guy, C. Hahn, K. Honscheid, M. Ishak, J. Jimenez, R. Kehoe, D. Kirkby, T. Kisner, A. Kremin, C. Lamman, M. Landriau, L. Le Guillou, M. E. Levi, M. Manera, P. Martini, A. Meisner, R. Miquel, J. Moustakas, S. Nadathur, N. Palanque-Delabrouille, W. J. Percival, F. Prada, I. Perez-Rafols, G. Rossi, E. Sanchez, M. Schubnell, J. Silber, D. Sprayberry, G. Tarle, B. A. Weaver, R. H. Wechsler, R. Zhou, H. Zou ยท 2025

The Milky Way Backup Program (MWBP), a survey currently underway with the Dark Energy Spectroscopic Instrument (DESI) on the Nicholas U. Mayall 4-m Telescope, works at the margins of the DESI Main surโ€ฆ

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Physics Preprint PDF DOI

Timescales and Statistics of Shock-induced Droplet Breakup

Michael Ullman, Ral Bielawski, Venkat Raman ยท 2025

Detonation-based propulsion devices, such as rotating detonation engines (RDEs), must be able to leverage the higher energy densities of liquid fuels in order for them to be utilized in practical contโ€ฆ

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Physics Preprint PDF DOI

Natural convection in a vertical channel. Part 3. Bifurcations of many (additional) unstable periodic orbits and their dynamical relevance

Zheng Zheng, Laurette S. Tuckerman, Tobias M. Schneider ยท 2025

Vertical thermal convection system exhibits weak turbulence and spatio-temporally chaotic behaviour. In this system, we report seven equilibria and 26 periodic orbits, all new and linearly unstable. Tโ€ฆ

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Physics Preprint PDF DOI

QUITS: A modular Qldpc code circUIT Simulator

Mingyu Kang, Yingjia Lin, Hanwen Yao, Mert Gokduman, Arianna Meinking, Kenneth R. Brown ยท 2025

To achieve quantum fault tolerance with lower overhead, quantum low-density parity-check (QLDPC) codes have emerged as a promising alternative to topological codes such as the surface code, offering hโ€ฆ

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Physics Preprint PDF DOI

A tale of two SUSYs

Stam Nicolis ยท 2025

There are two approaches towards supersymmetry: The ``conventional approach'', in which the fields appear in the classical action and the ``stochastic approach'', in which they emerge upon introducingโ€ฆ

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Physics Preprint PDF DOI

Dead, Slow and Overworked Graphite: Operando X-ray Microdiffraction Mapping of Aged Electrodes

Gozde Oney, Federico Monaco, Saptarshee Mitra, Asma Medjahed, Manfred Burghammer, Dmitry Karpov, Marta Mirolo, Jakub Drnec, Isabelle C. Jolivet, Quentin Arnoux, Samuel Tardif, Quentin Jacquet, Sandrine Lyonnard ยท 2025

Aging limits lithium-ion battery lifetime and must be understood to improve durability and performance, requiring a detailed understanding of how aging alters the availability of cyclable lithium and โ€ฆ

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Physics Preprint PDF DOI

Is chiral supersymmetry emanant or emergent?

Yu Nakayama ยท 2025

The extended Majorana Nicolai model is one of the simplest models of supersymmetry realized on a fermionic chain in $1+1$ dimensions. Within a certain parameter region, the extended theory breaks the โ€ฆ

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