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The second-order reduced density matrix method (the RDM method) has performed well in determining energies and properties of atomic and molecular systems, achieving coupled-cluster singles and doubles with perturbative triples (CC SD(T))…

强关联电子 · 物理学 2012-07-23 James S. M. Anderson , Maho Nakata , Ryo Igarashi , Katsuki Fujisawa , Makoto Yamashita

We present a coupled Boltzmann and hydrodynamics approach to relativistic heavy ion reactions. This hybrid approach is based on the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) transport approach with an intermediate hydrodynamical…

高能物理 - 唯象学 · 物理学 2008-06-12 Hannah Petersen , Jan Steinheimer , Qingfeng Li , Gerhard Burau , Marcus Bleicher

In the late stage of the evolution of a pion system in high-energy heavy-ion collisions when pions undergo multiple scatterings, the quantum transport of the interfering pair of identical pions plays an important role in determining the…

高能物理 - 唯象学 · 物理学 2008-11-26 Li-Li Yu , Wei-Ning Zhang , Cheuk-Yin Wong

With the parameters fitted by the particle multiplicity, the energy density at chemical freeze-out, and the charged particle elliptic flow, we have studied the effects of the hadronic mean-field potentials on the Hanbury-Brown and Twiss…

核理论 · 物理学 2017-10-20 Chun-Jian Zhang , Jun Xu

The Hanbury-Brown-Twiss (HBT) radii have been calculated from the two particle correlation functions with virtual photons produced in the collisions of two nuclei at ultra-relativistic energies. We show that the variation of the HBT radii…

核理论 · 物理学 2015-03-17 Payal Mohanty , Jan-e Alam , Bedangadas Mohanty

The Hanbury Brown and Twiss effect (HBT) is described by numerical and analytical modeling, as well as experimentally, using sound waves and easily available instrumentation. An interesting phenomenon that has often been considered too…

物理教育 · 物理学 2022-01-12 Arnt Inge Vistnes , Joakim Bergli

In heavy ion collisions resonances can create strong non-Gaussian effects in the 2-pion correlation data. Hence, the commonly used Gaussian fit parameters do not fully characterize these correlators. We suggest a different set of HBT…

核理论 · 物理学 2008-11-26 Urs Achim Wiedemann , Ulrich Heinz

Large spatial density fluctuations in high-energy heavy-ion collisions can come from many sources: initial transverse density fluctuations, non-central collisions, phase transitions, surface tension, and fragmentations. The common presence…

高能物理 - 唯象学 · 物理学 2008-11-26 Cheuk-Yin Wong , Wei-Ning Zhang

We propose a novel approach to probe primordial inhomogeneity in hot and dense matter which could be realized in non-central heavy-ion collisions. Although the Hanbury Brown and Twiss (HBT) interferometry is commonly used to infer the…

高能物理 - 唯象学 · 物理学 2024-03-12 Kenji Fukushima , Yoshimasa Hidaka , Katsuya Inoue , Kenta Shigaki , Yorito Yamaguchi

I will present a review of the field of Hanbury Brown-Twiss interferometry in relativistic heavy-ion collisions. The "HBT puzzle" is explored in detail, emphasizing recent theoretical attempts to understand the persisting puzzle. I also…

核实验 · 物理学 2011-08-23 Dan Magestro

We investigate several important issues regarding the Random Batch Method (RBM) for second order interacting particle systems. We first show the uniform-in-time strong convergence for second order systems under suitable contraction…

数值分析 · 数学 2020-12-02 Shi Jin , Lei Li , Yiqun Sun

In traditional Hanbury Brown and Twiss (HBT) schemes, the thermal intensity-intensity correlations are phase insensitive. Here we propose a modified HBT scheme with phase conjugation to demonstrate the phase-sensitive and nonfactorizable…

光学 · 物理学 2015-10-21 Li-Gang Wang , M. Al-Amri , M. Suhail Zubairy

Preliminary results of identical-particle correlations probing the geometric substructure of the particle-emitting source at RHIC are presented. An $m_T$-independent scaling of pion HBT radii from large (central Au+Au) to small (p+p)…

核实验 · 物理学 2009-09-29 Z. Chajecki

The particle spectra and Hanbury-Brown Twiss (HBT) radius of Au+Au collisions at RHIC energy are investigated by a hydrodynamical expanding source with both shear and bulk viscosities ($\zeta$). With a large width of the ratio of $\zeta$ to…

核理论 · 物理学 2010-01-25 J. W. Li , Y. G. Ma , G. L. Ma

We perform two-pion Hanbury Brown-Twiss (HBT) interferometry for the partially coherent pion-emitting sources in relativistic heavy-ion collisions, using a multi-phase transport (AMPT) model. A longitudinal coherent emission length, as well…

核理论 · 物理学 2024-02-02 Shi-Yao Wang , Jun-Ting Ye , Wei-Ning Zhang

High-spin rotational bands in rare-earth Er ($Z=68$), Tm ($Z=69$) and Yb ($Z=70$) isotopes are investigated by three different nuclear models. These are (i) the cranked relativistic Hartree-Bogoliubov (CRHB) approach with approximate…

核理论 · 物理学 2020-05-06 Zhen-Hua Zhang , Miao Huang , A. V. Afanasjev

Many-body interference between indistinguishable particles can give rise to strong correlations rooted in quantum statistics. We study such Hanbury Brown-Twiss-type correlations for number states of ultracold massive fermions. Using…

Variational methods are highly valuable computational tools for solving high-dimensional quantum systems. In this paper, we explore the effectiveness of three variational methods: the density matrix renormalization group (DMRG), Boltzmann…

量子物理 · 物理学 2024-04-18 Daming Li

To extract information on hadron production dynamics in the ultrarelativistic heavy ion collision, the space-time structure of the hadron source has been measured using Hanbury Brown and Twiss interferometry. We study the distortion of the…

核理论 · 物理学 2011-02-03 Koichi Hattori

We investigate the fluctuations of pion elliptic flow, triangular flow, and Hanbury-Brown-Twiss (HBT) correlation functions for the hydrodynamic sources with fluctuating initial conditions in the heavy ion collisions of the Au-Au at…

核理论 · 物理学 2015-02-11 Ying Hu , Wei-Ning Zhang , Yan-Yu Ren