Results 71 to 80 of about 1,687,865 (270)

Few-body models for nuclear astrophysics

AIP Advances, 2014
We present applications of microscopic models to nuclear reactions of astrophysical interest, and we essentially focus on few-body systems. The calculation of radiative-capture and transfer cross sections is outlined, and we discuss the corresponding ...
P. Descouvemont, D. Baye, Y. Suzuki, S. Aoyama, K. Arai   +4 more
doaj   +1 more source

Theoretical applications to nuclear astrophysics [PDF]

EPJ Web of Conferences
Nuclear reaction study is important to understand elemental abundance in the universe and stability of stars. For several reactions due to the paucity of experimental data or diffculties in performing the direct measurements, we depend upon theoretical ...
Shubhchintak, Sharma Dinkar
doaj   +1 more source

Generalized Chemical Model for Warm Dense Hydrogen: Ionization Potential Depression and Molecular Dissociation Shifts

Contributions to Plasma Physics, EarlyView.
ABSTRACT Warm dense matter (WDM) is a complex state, where quantum effects, thermal excitations, and strong interparticle correlations coexist. Understanding its microscopic composition and medium‐induced modifications of atomic and molecular properties is essential for planetary modeling, fusion research, and high‐energy‐density experiments.
L. T. Yerimbetova, Yu. V. Arkhipov, Ye. S. Mukhametkarimov, A. E. Davletov, I. M. Tkachenko   +4 more
wiley   +1 more source

Constraining properties of neutron stars with heavy-ion reactions in terrestrial laboratories

, 2007
Heavy-ion reactions provide a unique means to investigate the equation of state (EOS) of neutron-rich nuclear matter, especially the density dependence of the nuclear symmetry energy $E_{sym}(\rho)$.
Andrew W Steiner, Bao-An Li, Che Ming Ko, Chen L W Ko C M Li B A Yong G C, Dirac P A M, Gao-Chan Yong, Krastev P G Li B A, Li B A, Lie-Wen Chen, Plamen G Krastev, Trümper J E   +10 more
core   +1 more source

Quenching the Hubbard Model: Comparison of Nonequilibrium Green's Function Methods

Contributions to Plasma Physics, EarlyView.
ABSTRACT We benchmark nonequilibrium Green's function (NEGF) approaches for interaction quenches in the half‐filled Fermi–Hubbard model in one and two dimensions. We compare fully self‐consistent two‐time Kadanoff–Baym equations (KBE), the generalized Kadanoff–Baym ansatz (GKBA), and the recently developed NEGF‐based quantum fluctuations approach (NEGF‐
Jan‐Philip Joost, Christopher Makait, Alexander Osterkorn, Erik Schroedter   +3 more
wiley   +1 more source

Impact of Uncertain Parameters on Navier–Stokes Equations With Heat Transfer via Polynomial Chaos Expansion

International Journal for Numerical Methods in Fluids, EarlyView.
This study investigates the impact of uncertain parameters on Navier–Stokes equations coupled with heat transfer using the Intrusive Polynomial Chaos Method (IPCM). Sensitivity equations are formulated for key input parameters, such as viscosity and thermal diffusivity, and solved numerically using the Finite Element‐Volume method.
N. Nouaime, B. Després, M. A. Puscas, C. Fiorini   +3 more
wiley   +1 more source

Reactor neutrons in nuclear astrophysics

EPJ Web of Conferences, 2017
The huge neutron fluxes offer the possibility to use research reactors to produce isotopes of interest, which can be investigated afterwards. An example is the half-lives of long-lived isotopes like 129I.
Reifarth René, Glorius Jan, Göbel Kathrin, Heftrich Tanja, Jentschel Michael, Jurado Beatriz, Käppeler Franz, Köster Ulli, Langer Christoph, Litvinov Yuri A., Weigand Mario   +10 more
doaj   +1 more source

Mid‐Infrared Integrated Photonics: Material Platforms and Emerging Applications

Laser &Photonics Reviews, EarlyView.
Mid‐infrared (MIR) integrated photonics enables advanced chemical and biological sensing through the unique absorption features of molecules in the 2–20 µm range. This review highlights recent material advances such as chalcogenide glasses, silicon, and graphene and explores MIR applications in environmental monitoring, medical diagnostics ...
Muhammad Ali Butt, Daniel Pastor Abellán, Ryszard Piramidowicz   +2 more
wiley   +1 more source

Storage, accumulation and deceleration of secondary beams for nuclear astrophysics [PDF]

Nuclear Instruments and Methods in Physics Reseach B, 2023
J. Glorius, Y. Litvinov, M. Aliotta, F. Amjad, B. Brückner, C. Bruno, R. Chen, T. Davinson, S. Dellmann, T. Dickel, I. Dillmann, P. Erbacher, O. Forstner, H. Geissel, C. Griffin, R. Grisenti, A. Gumberidze, E. Haettner, R. Hess, P. Hillenbrand, C. Hornung, R. Joseph, B. Jurado, E. Kazanseva, R. Knöbel, D. Kostyleva, C. Kozhuharov, N. Kuzminchuk, C. Langer, G. Leckenby, C. Lederer-Woods, M. Lestinsky, S. Litvinov, B. Löher, B. Lorenz, E. Lorenz, J. Marsh, E. Menz, T. Morgenroth, I. Mukha, N. Petridis, U. Popp, A. Psaltis, S. Purushothaman, R. Reifarth, E. Rocco, P. Roy, M. S. Sanjari, C. Scheidenberger, M. Sguazzin, R. S. Sidhu, U. Spillmann, M. Steck, T. Stöhlker, J. A. Swartz, Y.K. Tanaka, H. Törnqvist, L. Varga, D. Vescovi, H. Weick, M. Weigand, P. Woods, T. Yamaguchi, J. Zhao   +63 more
semanticscholar   +1 more source

Quantum Iterative Methods for Solving Differential Equations with Application to Computational Fluid Dynamics

Advanced Quantum Technologies, EarlyView.
Quantum algorithms for differential equations are developed with applications in computational fluid dynamics. The methods follow an iterative simulation framework, implementing Jacobi and Gauss–Seidel schemes on quantum registers through linear combinations of unitaries.
Chelsea A. Williams, Antonio A. Gentile, Vincent E. Elfving, Daniel Berger, Oleksandr Kyriienko   +4 more
wiley   +1 more source