70 citations · 267 across the 18 of their papers we have counts for
18 papers
Variational formulation of compressible hydrodynamics in curved spacetime and symmetry of stress tensor
T. Koide, T. Kodama
Hydrodynamics of the non-relativistic compressible fluid in the curved spacetime is derived using the generalized framework of the stochastic variational method (SVM) for continuum…
Schroedinger Equation in Rotating Frame by using Stochastic Variational Method
T. Koide, K. Tsushima, T. Kodama
We give a pedagogical introduction of the stochastic variational method by considering the quantization of a non-inertial particle system. We show that the effects of fictitious fo…
Anisotropy of Low Energy Direct Photons in Relativistic Heavy Ion Collisions
T. Koide, T. Kodama
We investigate the behavior of low energy photons radiated by the deceleration processes of two colliding nuclei in relativistic heavy ion collisions using the Wigner function appr…
Stochastic Variational Method as a Quantization Scheme II: Quantization of Electromagnetic Fields
T. Koide. T. Kodama, K. Tsushima
Quantization of electromagnetic fields is investigated in the framework of stochastic variational method (SVM). Differently from the canonical quantization, this method does not re…
Coarse Graining in Hydrodynamics and Effects of Fluctuations
T. Kodama, T. Koide
We address the physical meaning of hydrodynamic approach related with the coarse graining scale in the frame work of variational formulation. We point out that the local thermal eq…
Stochastic Variational Method as Quantization Scheme I: Field Quantization of Complex Klein-Gordan Equation
T. Koide, T. Kodama
Stochastic Variational Method (SVM) is the generalization of the variation method to the case with stochastic variables. In the series of papers, we investigate the applicability o…
Coarse graining scale and effectiveness of hydrodynamic modeling
Ph. Mota, T. Kodama, J. Takahashi +1
Some basic questions about the hydrodynamical approach to relativistic heavy ion collisions are discussed aiming to clarify how far we can go with such an approach to extract usefu…
Generalization of Uncertainty Relation for Quantum and Stochastic Systems
T. Koide, T. Kodama
The generalized uncertainty relation applicable to quantum and stochastic systems is derived within the stochastic variational method. This relation not only reproduces the well-kn…
Navier-Stokes, Gross-Pitaevskii and Generalized Diffusion Equations using Stochastic Variational Method
T. Koide, T. Kodama
The stochastic variational method is applied to particle systems and continuum mediums. As the brief review of this method, we first discuss the application to particle Lagrangians…
Longitudinal dependence of two-particle momentum correlations from NEXSPHERIO model
Monika Sharma, Claude Pruneau, Sean Gavin +3
The rapidity dependence of two-particle momentum correlations can be used to probe the viscosity of the liquid produced in heavy nuclei collisions at RHIC. We reexamine this probe…
Thermodynamic Laws and Equipartition Theorem in Relativistic Brownian Motion
T. Koide, T. Kodama
We extend the stochastic energetics to a relativistic system. The thermodynamic laws and equipartition theorem are discussed for a relativistic Brownian particle and the first and…
The effect of shear and bulk viscosities on elliptic flow
G. S. Denicol, T. Kodama, T. Koide
In this work, we examine the effect of shear and bulk viscosities on elliptic flow by taking a realistic parameterization of the shear and bulk viscous coefficients, and , a…
Elliptic flow in high multiplicity proton-proton collisions at = 14 TeV as a signature of deconfinement and quantum energy density fluctuations
G. Ortona, G. S. Denicol, Ph. Mota +1
At LHC extreme values of energy density will be reached even for proton-proton collisions. Such values of energy density may be large enough to generate a collective motion in the…
Gluon Saturation Effects at the Nuclear Surface: Inelastic Cross Section of Proton-Nucleus at Ultra High Energy Cosmic Ray domain
L. Portugal, T. Kodama
Considering the high-energy limit of the QCD gluon distribution inside a nucleus, we calculate the proton-nucleus total inelastic cross section using a simplified dipole model. We…
Bulk viscosity effects on elliptic flow
G. S. Denicol, T. Kodama, T. Koide +1
The effects of bulk viscosity on the elliptic flow are studied using realistic equation of state and realistic transport coefficients. We find that thebulk viscosity acts i…
Dynamical Origin of Power Spectra
T. Kodama, T. Koide
We discuss a possible origin of Tsallis' statistics from the correlation among constituents which reduces the phase space of the system. We also show that in the system of coupled…
Memory Effects and Transport Coefficients for Non-Newtonian Fluids
T. Kodama, T. Koide
We discuss the roles of viscosity in relativistic fluid dynamics from the point of view of memory effects. Depending on the type of quantity to which the memory effect is applied,…
Collective Modes in Neutrino `Beam' Electron-Positron Plasma Interactions
H. -Th. Elze, T. Kodama, R. Opher
We derive semiclassical neutrino-electron transport equations in the collisionless (Vlasov) limit from the coupled Dirac equations, incorporating the charged and neutral weak curre…