Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Akamatsu, Yukinao"'
We formulate the induced potential in a finite temperature cold atomic medium between two heavy impurities, or polarons, which is shown to be \textit{complex-valued} in general. The imaginary part of the complex-valued potential describes a decoheren
Externí odkaz:
http://arxiv.org/abs/2312.08241
Autor:
Akamatsu, Yukinao, Asakawa, Masayuki
We discuss how heavy quark dynamics is affected by the critical fluctuations near the QCD critical point at finite temperature and density. We find that the heavy quark momentum diffusion constant scales as $\kappa\propto\xi^{z-3-\eta}$. In the model
Externí odkaz:
http://arxiv.org/abs/2307.09049
We study the properties of the Lindbladian quantum mechanical evolution of quarkonia with non-Abelian charges (color-singlet and octet) in the quark-gluon plasma. We confirm that heavy quark recoils in the Lindblad equation correctly thermalize quark
Externí odkaz:
http://arxiv.org/abs/2205.15551
Autor:
Akamatsu, Yukinao, Miura, Takahiro
We review recent progress in open quantum system approach to the description of quarkonium in the quark-gluon plasma. A particular emphasis is put on the Lindblad equations for quarkonium and its numerical simulations.
Comment: 11 pages, 3 figur
Comment: 11 pages, 3 figur
Externí odkaz:
http://arxiv.org/abs/2111.15402
Decoherence dynamics of quarkonia is studied in the high-temperature deconfined phase of SU($N_c$) gauge theories. In particular, we analyze the symmetry properties of SU($N_c$) stochastic potential model and find a novel "event-by-event" symmetry fo
Externí odkaz:
http://arxiv.org/abs/2108.06921
Autor:
Akamatsu, Yukinao
Dissociation of quarkonium in quark-gluon plasma (QGP) is a long standing topic in relativistic heavy-ion collisions because it has been believed to signal one of the fundamental natures of the QGP -- Debye screening due to the liberation of color de
Externí odkaz:
http://arxiv.org/abs/2009.10559
Autor:
Ålund, Oskar, Akamatsu, Yukinao, Laurén, Fredrik, Miura, Takahiro, Nordström, Jan, Rothkopf, Alexander
We develop a novel numerical scheme for the simulation of dissipative quantum dynamics following from two-body Lindblad master equations. All defining continuum properties of the Lindblad dynamics, hermiticity, positivity and in particular trace cons
Externí odkaz:
http://arxiv.org/abs/2004.04406
Autor:
Akamatsu, Yukinao
I review recent progress in thermalization in heavy-ion collisions, with particular emphasis on hydrodynamic attractor, and also report recent progress in hydrodynamic fluctuations.
Comment: 8 pages, 3 figures, Proceedings for Quark Matter 2019
Comment: 8 pages, 3 figures, Proceedings for Quark Matter 2019
Externí odkaz:
http://arxiv.org/abs/2001.01429
Publikováno v:
Phys. Rev. D 101, 034011 (2020)
In this paper we study the real-time evolution of heavy quarkonium in the quark-gluon plasma (QGP) on the basis of the open quantum systems approach. In particular, we shed light on how quantum dissipation affects the dynamics of the relative motion
Externí odkaz:
http://arxiv.org/abs/1908.06293
Autor:
Murase, Koichi, Akamatsu, Yukinao, Asakawa, Masayuki, Hirano, Tetsufumi, Kitazawa, Masakiyo, Morita, Kenji, Nara, Yasushi, Nonaka, Chiho, Ohnishi, Akira
To explore the structure of the QCD phase diagram in high baryon density domain, several high-energy nuclear collision experiments in a wide range of beam energies are currently performed or planned using many accelerator facilities. In these experim
Externí odkaz:
http://arxiv.org/abs/1901.11190