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Showing 107 results for "othmane aboussaad" in Physics
Physics Preprint PDF DOI

How does ethane wet different substrates?

L. Baran, D. Tarasewicz, W. Rzysko · 2026

Computer simulations are employed to investigate the adsorption mechanisms of ethane on both homogeneous and inhomogeneous substrates. For homogeneous surfaces, the full range of surface phase transit…

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Physics Preprint PDF DOI

Interstellar Formation of Thioethanal (CH$_{3}$CHS). Gas-Phase and Ice-Surface Mechanisms involving Secondary Sulfur Products

N. Rani, S. Vogt-Geisse, S. Bovino · 2026

The formation pathways of sulfur-bearing species in the interstellar medium are crucial to understand astrochemical processes in cold molecular clouds and to gain new insights about the sulfur budget …

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Physics Preprint PDF DOI

Finite-size effects and energy alignment in molecular XANES under periodic boundary conditions: A systematic comparison of core-hole treatments

Yu Fujikata, Yasuji Muramatsu, Teruyasu Mizoguchi · 2026

X-ray absorption near-edge structure (XANES) provides element-specific insight into local electronic and structural environments, but quantitative interpretation of molecular XANES under periodic boun…

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Physics Preprint PDF DOI

Long-wave mid-infrared cavity-enhanced frequency comb spectroscopy of cold, complex molecules

Negar Baradaran, Dominik Charczun, Tanay Nambiar, Meijun Zou, Kevin F. Lee, Martin E. Fermann, Marissa L. Weichman · 2025

We report the development of a new instrument for cavity-enhanced absorption spectroscopy of the fundamental rovibrational transitions of molecules in the long-wave mid-infrared (LWIR) region from 650…

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Physics Preprint PDF DOI

Prediction of the three-phase coexistence line of the ethane hydrate from molecular simulation

Paula Gomez-Alvarez, Miguel J. Torrejon, Jesus Algaba, Felipe J. Blas · 2025

We investigate the three-phase coexistence line of ethane (C$_2$H$_6$) hydrate through molecular dynamics simulations using the direct coexistence approach. In this framework, C$_2$H$_6$ sI hydrate, a…

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Physics Preprint PDF DOI

The Second Stellar Spectrum: Rotating hot massive star linear spectropolarimetry with the Ohman Effect

J. Patrick Harrington, R. Ignace, K. G. Gayley, J. J. Drake · 2025

To understand better the polarized radiative transfer near the surface of rotating massive stars that remain nearly spherically symmetric, we use plane-parallel stellar atmosphere models to explore th…

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Physics Preprint PDF DOI

Progress toward the detection of the gravitational-wave background from stellar-mass binary black holes: a mock data challenge

Xiao-Xiao Kou, Muhammed Saleem, Vuk Mandic, Colm Talbot, Eric Thrane · 2025

While the third LIGO--Virgo gravitational-wave transient catalog includes 90 signals, it is believed that ${\cal O}(10^5)$ binary black holes merge somewhere in the Universe every year. Although these…

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Physics Preprint PDF DOI

Spectropolarimetry for Discerning Geometry and Structure in Circumstellar Media of Hot Massive Stars

Richard Ignace, Kenneth Gayley, Roberto Casini, Paul Scowen, Christiana Erba, Jeremy Drake · 2025

Spectropolarimetric techniques are a mainstay of astrophysical inquiry, ranging from Solar System objects to the Cosmic Background Radiation. This review highlights applications of stellar polarimetry…

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Physics Preprint PDF DOI

First result from tetrafluoroethane (C$_2$H$_2$F$_4$) superheated emulsion detector for dark matter search at JUSL

V. Kumar, S. Ali, M. Das, N. Biswas, S. Das, S. Sahoo, N.Chaddha, J. Basu, V. N. Jha · 2025

The superheated emulsion detector consisting of the droplets of tetra-fluoroethane (C2HC$_2$H$_2$F$_4$2F4) has been fabricated at the laboratory and installed at the 555m deep underground laboratory, …

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Physics Preprint PDF DOI

Late-time tails and mass inflation for the spherically symmetric Einstein-Maxwell-scalar field system

Onyx Gautam · 2024

We establish a decay result in the black hole exterior region of spherically symmetric solutions to the Einstein-Maxwell-scalar field system arising from compactly supported admissible data. Our resul…

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Physics Preprint PDF DOI

A symmetry-oriented crystal structure prediction method for crystals with rigid bodies

Qi Zhang, Amitava Choudhury, Aleksandr Chernatynskiy · 2024

We have developed an efficient crystal structure prediction (CSP) method for desired chemical compositions, specifically suited for compounds featuring recurring molecules or rigid bodies. We applied …

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Physics Preprint PDF DOI

Molecular dynamics characterization of the interfacial structure and forces of the methane-ethane sII gas hydrate interface

Samuel Mathews, Andre Guerra, Phillip Servio, Alejandro Rey · 2024

The nucleation of gas hydrates is of great interest in flow assurance, global energy demand, and carbon capture and storage. A complex molecular understanding is critical to control hydrate nucleation…

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Physics Preprint PDF DOI

Towards low-temperature processing of efficient $\gamma$-CsPbI$_3$ perovskite solar cells

Zongbao Zhang, Ran Ji, Yvonne J. Hofstetter, Marielle Deconinck, Julius Brunner, Yanxiu Li, Qingzhi An, Yana Vaynzof · 2024

Inorganic cesium lead iodide (CsPbI$_3$) perovskite solar cells (PSCs) have attracted enormous attention due to their excellent thermal stability and optical bandgap (~1.73 eV), well-suited for tandem…

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Physics Preprint PDF DOI

CN and CCH derivatives of ethylene and ethane: Confirmation of the detection of CH$_3$CH$_2$CCH in TMC-1

J. Cernicharo, B. Tercero, M. Agundez, C. Cabezas, R. Fuentetaja, N. Marcelino, P. de Vicente · 2024

We present a study of CH$_3$CH$_2$CCH, CH$_3$CH$_2$CN, CH$_2$CHCCH, and CH$_2$CHCN in TMC-1 using the QUIJOTE$^1$ line survey. We confirm the presence of CH$_3$CH$_2$CCH in TMC-1, which was previously…

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Physics Preprint PDF DOI

AFM-IR of EHD-Printed PbS Quantum Dots: Quantifying Ligand Exchange at the Nanoscale

Lorenzo J. A. Ferraresi, Gokhan Kara, Nancy A. Burnham, Roman Furrer, Dmitry N. Dirin, Fabio La Mattina, Maksym V. Kovalenko, Michel Calame, Ivan Shorubalko · 2024

Colloidal quantum dots (cQDs) recently emerged as building blocks for semiconductor materials with tuneable properties. Electro-hydrodynamic printing can be used to obtain sub-micrometre patterns of c…

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Physics Preprint PDF DOI

Asymptotically de Sitter metrics from scattering data in all dimensions

Peter Hintz · 2023

In spacetime dimensions $n+1\geq 4$, we show the existence of solutions of the Einstein vacuum equations which describe asymptotically de Sitter spacetimes with prescribed smooth data at the conformal…

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Physics Preprint PDF DOI

Bridgman formula for the thermal conductivity of atomic and molecular liquids

Sergey Khrapak · 2023

A simple and popular Bridgman's model predicts a linear correlation between the thermal conductivity coefficient and the sound velocity of dense liquids. A proportionality coefficient proposed origina…

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Physics Preprint PDF DOI

Towards practical and massively parallel quantum computing emulation for quantum chemistry

Honghui Shang, Yi Fan, Li Shen, Chu Guo, Jie Liu, Xiaohui Duan, Fang Li, Zhenyu Li · 2023

Quantum computing is moving beyond its early stage and seeking for commercial applications in chemical and biomedical sciences. In the current noisy intermediate-scale quantum computing era, quantum r…

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Physics Preprint PDF DOI

The wave equation on subextremal Kerr spacetimes with small non-decaying first order terms

Gustav Holzegel, Christopher Kauffman · 2023

We consider the perturbed covariant wave equation $\Box_{g_{M,a}} \Psi = \varepsilon \mathbf{B} \Psi$ on the exterior of a fixed subextremal Kerr spacetime $\left(\mathcal{M},g_{M,a}\right)$. Here $\m…

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Physics Preprint PDF DOI

Life on Titan May Signal Early Life in the Universe

Abraham Loeb (Harvard) · 2022

The temperature of the cosmic microwave background (CMB) was equal to the surface temperature of Saturn's moon Titan, 94K, at a redshift z=33.5, after the first galaxies formed. Titan-like objects wou…

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