Resources

Publications

  • Author(s): Harry Ho-Yin Ng, Jin-Liang Jiang, Carlo Musolino, Christian Ecker, Samuel D. Tootle, and Luciano Rezzolla The numerical simulations of binary neutron star mergers is an important, but computationally expensive endeavor. The authors demonstrate that significant computational savings can be realized by adopting a hybrid approach to these simulations by using a fully dynamical spacetime solver initially, but switching to a conformally...
  • Author(s): Hugo A. Camargo, Viktor Jahnke, Hyun-Sik Jeong, Keun-Young Kim, and Mitsuhiro Nishida The authors study spectral and Krylov complexity in quantum billiard systems at finite temperature. They show that spectral complexity may be used to probe the transition between the chaotic and integrable configurations for the billiard systems. For Krylov complexity, they study the associated Lanczos coefficients showing that their growth rate satisfies...
  • Author(s): M. Fabbrichesi, R. Floreanini, E. Gabrielli, and L. Marzola The authors use data from the LHCb collaboration for the helicity amplitudes in the B0 –> J/ψK*(892)0 decays to compute the entanglement among the polarizations of the final vector mesons. They show explicitly that the Bell inequality is violated, in accord with the general principles of quantum mechanics. [Phys. Rev. D 109, L031104] Published Fri Feb 23, 2024
  • Author(s): José Luis Bernal The authors construct an analytic model of the line-intensity mapping (LIM) probability density field to include sources extended in angle and frequency, thus contributing to more than one observational resolution element. Preliminary simulation-based testing shows promise, encouraging further LIM development. [Phys. Rev. D 109, 043517] Published Wed Feb 14, 2024
  • Author(s): Constantia Alexandrou, Simone Bacchio, Martha Constantinou, Jacob Finkenrath, Roberto Frezzotti, Bartosz Kostrzewa, Giannis Koutsou, Gregoris Spanoudes, and Carsten Urbach (Extended Twisted Mass Collaboration) The authors compute the axial and pseudoscalar nucleon form factors for 2+1+1 flavors, light, strange, and charm, with physical quark masses in lattice QCD with a controlled continuum extrapolation. The results are compared with...
  • Author(s): Federico Schianchi, Henrique Gieg, Vsevolod Nedora, Anna Neuweiler, Maximiliano Ujevic, Mattia Bulla, and Tim Dietrich A crucial ingredient in accurate simulations of neutron star-neutron star and neutron star-black hole mergers is the inclusion of neutrino transport and its effects on the physics and astrophysics of these phenomena. The authors implement a neutrino radiative transport scheme in their general relativistic hydrodynamics...
  • Author(s): Sho Fujibayashi, Alan Tsz-Lok Lam, Masaru Shibata, and Yuichiro Sekiguchi Black-hole forming collapse of massive stars are studied using general relativistic viscous radiation hydrodynamics with axial symmetry. The authors uncover a rich set of phenomena: a supernova-like explosion mechanism driven by viscous and shock heating resulting in the expulsion of a significant fraction of the energy, rapidly spinning black hole formation,...