226 citations · 1.4k across the 35 of their papers we have counts for
10 papers · 1 filter
Enhancement of photon emission rate near QCD critical point
Yukinao Akamatsu, Masayuki Asakawa, Masaru Hongo +2
We compute photon emission rate enhancement near the QCD critical point using an effective theory of dynamic critical phenomena and derive a universal photon spectrum. The emission…
Complex potential and open system applications in heavy-ions and cold atoms
Yukinao Akamatsu
Since the discovery of the complex potential of quarkonium at high temperatures, quarkonium has been regarded as an open quantum system in the quark-gluon plasma. Recently, a simil…
Nonequilibrium evolution of quarkonium in medium
Yukinao Akamatsu, Takahiro Miura
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 qua…
Non-Abelian chiral instabilities at high temperature on the lattice
Yukinao Akamatsu, Alexander Rothkopf, Naoki Yamamoto
We report on an exploratory lattice study on the phenomenon of chiral instabilities in non-Abelian gauge theories at high temperature. It is based on a recently constructed anomalo…
Heavy quark master equations in the Lindblad form at high temperatures
Yukinao Akamatsu
We derive the quantum master equations for heavy quark systems in a high-temperature quark- gluon plasma in the Lindblad form. The master equations are derived in the influence fun…
Real-time quantum dynamics of heavy quark systems at high temperature
Yukinao Akamatsu
On the basis of the closed-time path formalism of non-equilibrium quantum field theory, we derive the real-time quantum dynamics of heavy quark systems. Even though our primary goa…
Stochastic potential and quantum decoherence of heavy quarkonium in the quark-gluon plasma
Yukinao Akamatsu, Alexander Rothkopf
We propose an open quantum systems approach to the physics of heavy quarkonia in a thermal medium, based on stochastic quantum evolution. This description emphasizes the importance…
Electron-muon correlation as a new probe to strongly interacting quark-gluon plasma
Yukinao Akamatsu, Tetsuo Hatsuda, Tetsufumi Hirano
As a new and clean probe to the strongly interacting quark-gluon plasma (sQGP), we propose an azimuthal correlation of an electron and a muon which originate from the semileptonic…
Langevin + Hydrodynamics Approach to Heavy Quark Propagation and Correlation in QGP
Yukinao Akamatsu, Tetsuo Hatsuda, Tetsufumi Hirano
We develop a relativistic Langevin dynamics under the background of strongly interacting quark-gluon fluid described by the (3+1)-dimensional hydrodynamics. The drag force acting o…
Heavy Quark Diffusion with Relativistic Langevin Dynamics in the Quark-Gluon Fluid
Yukinao Akamatsu, Tetsuo Hatsuda, Tetsufumi Hirano
The relativistic diffusion process of heavy quarks is formulated on the basis of the relativistic Langevin equation in Itô discretization scheme. The drag force inside the quark-gl…