322 citations · 1.1k across the 14 of their papers we have counts for
14 papers
Collision Geometry and Flow in Uranium+Uranium Collisions
Andy Goldschmidt, Zhi Qiu, Chun Shen +1
Using event-by-event viscous fluid dynamics to evolve fluctuating initial density profiles from the Monte-Carlo Glauber model for U+U collisions, we report a "knee"-like structure…
Collision Geometry and Flow in Uranium+Uranium Collisions
Andy Goldschmidt, Zhi Qiu, Chun Shen +1
Using event-by-event viscous fluid dynamics to evolve fluctuating initial density profiles from the Monte-Carlo Glauber model for U+U collisions, we report a "knee"-like structure…
Shape and flow fluctuations in ultra-central Pb+Pb collisions at the LHC
Chun Shen, Zhi Qiu, Ulrich Heinz
In ultra-central heavy-ion collisions, anisotropic hydrodynamic flow is generated by density fluctuations in the initial state rather than by geometric overlap effects. For a given…
The iEBE-VISHNU code package for relativistic heavy-ion collisions
Chun Shen, Zhi Qiu, Huichao Song +3
The iEBE-VISHNU code package performs event-by-event simulations for relativistic heavy-ion collisions using a hybrid approach based on (2+1)-dimensional viscous hydrodynamics coup…
Event-by-event Hydrodynamic Simulations for Relativistic Heavy-ion Collisions
Zhi Qiu
In this thesis, I show my Ph.D. work on event-by-event hydrodynamic simulations for relativistic heavy-ion collision. I show that event-by-event hydrodynamic simulations have becom…
Fluctuating flow angles and anisotropic flow measurements
Ulrich W. Heinz, Zhi Qiu, Chun Shen
Event-by-event fluctuations in the initial density distributions of the fireballs created in relativistic heavy-ion collisions lead to event-by-event fluctuations of the final anis…
Resonance Decay Contributions to Higher-Order Anisotropic Flow Coefficients
Zhi Qiu, Chun Shen, Ulrich W. Heinz
We show that in hydrodynamic simulations for relativistic heavy-ion collisions, strong resonance decay calculations can be performed with fewer species of particle resonances while…
Imprinting Quantum Fluctuations on Hydrodynamic Initial Conditions
J. Scott Moreland, Zhi Qiu, Ulrich W. Heinz
Starting from the two-point covariance function derived in [1], we have developed a toy model to investigate the effect of gluonic fluctuations on the transverse energy profile pre…
Hydrodynamic event-plane correlations in Pb+Pb collisions at sqrt(s)=2.76ATeV
Zhi Qiu, Ulrich W. Heinz
The recently measured correlations between the flow angles associated with higher harmonics in the anisotropic flow generated in relativistic heavy-ion collisions are shown to be o…
Hydrodynamic elliptic and triangular flow in Pb-Pb collisions at sqrt(s)=2.76ATeV
Zhi Qiu, Chun Shen, Ulrich W. Heinz
It is shown that a simultaneous comparison of both elliptic and triangular flow from (2+1)-dimensional viscous fluid dynamics with recent measurements in Pb+Pb collisions at the La…
Event-by-event hydrodynamics for heavy-ion collisions
Zhi Qiu, Ulrich W Heinz
We compare v2/ε2 and v3/ε3 from single-shot and event-by-event (2+1)-dimensional hydrodynamic calculations and discuss the validity of using single-shot calculations as substitutes…
The QGP shear viscosity -- elusive goal or just around the corner?
Chun Shen, Steffen A Bass, Tetsufumi Hirano +4
With the new viscous hydrodynamic + hadron cascade hybrid code VISHNU, a rather precise (O(25%)) extraction of the QGP shear viscosity (eta/s)_QGP from heavy-ion elliptic flow data…
Event-by-event shape and flow fluctuations of relativistic heavy-ion collision fireballs
Zhi Qiu, Ulrich W. Heinz
Heavy-ion collisions create deformed quark-gluon plasma (QGP) fireballs which explode anisotropically. The viscosity of the fireball matter determines its ability to convert the in…
Ionization in damped time-harmonic fields
O. Costin, M. Huang, Z. Qiu
We study the asymptotic behavior of the wave function in a simple one dimensional model of ionization by pulses, in which the time-dependent potential is of the form $V(x,t)=-2δ(x)…