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Fluid temperature is important for the analysis of the heat transfers in thermal hydraulics. An accurate measurement or estimation of the fluid temperature in multiphase flows is challenging. This is due to that the thermocouple signal that…

数据分析、统计与概率 · 物理学 2020-01-08 Zhuoran Dang

Superconductors have been among the most fascinating substances, as the fundamental concept of superconductivity as well as the correlation of critical temperature and superconductive materials have been the focus of extensive investigation…

A phenomenological criterion for the superfluid transition is proposed, which is similar to the Lindemann criterion for the crystal melting. Then we derive a new formula for the critical temperature, relating $T_{\lambda}$ to the mean…

统计力学 · 物理学 2009-10-31 Sergey M. Apenko

The static critical exponents of the three dimensional Blume-Capel model which has a tricritical point at}$D/J=2.82${\small value are estimated for the standard and the cooling algorithms which improved from Creutz Cellular Automaton. The…

统计力学 · 物理学 2016-08-16 A. Özkan , N. Seferoğlu , B. Kutlu

We present a modification of the Rose-Machta algorithm (Phys. Rev. E 100 (2019) 063304) and estimate the density of states for a two-dimensional Blume-Capel model, simulating $10^5$ replicas in parallel for each set of parameters. We…

统计力学 · 物理学 2024-10-21 Vyacheslav Mozolenko , Lev Shchur

We detail the use of simple machine learning algorithms to determine the critical Bose-Einstein condensation (BEC) critical temperature $T_\text{c}$ from ensembles of paths created by path-integral Monte Carlo (PIMC) simulations. We quickly…

统计力学 · 物理学 2019-12-20 Adith Ramamurti

Using a global equation of state, empirically derived by Luding, we accurately model the density profile of a two-dimensional hard sphere system with diameter D and mass m under gravity with a given temperature T [Physica A, 271, 192…

材料科学 · 物理学 2010-11-24 Alison E. Koser , Paul V. Quinn

With the use of thermodynamics and general equilibrium conditions only, we study the entropy of a fluid in the vicinity of the critical point of the liquid-vapor phase transition. By assuming a general form for the coexistence curve in the…

统计力学 · 物理学 2021-06-16 J. C. Obeso-Jureidini , D. Olascoaga , V. Romero-Rochín

The thermal mass spectra of scalar and pseudo scalar mesons are studied in an IR-improved soft-wall AdS/QCD model. The Reissner-Nordstrom AdS black hole metric is introduced to describe both the finite temperature and density effects. The…

高能物理 - 唯象学 · 物理学 2013-10-08 Ling-Xiao Cui , Yue-Liang Wu

QCD at non-zero baryon density is expected to have a critical point where the zero-density cross-over turns into a first order phase transition. To identify this point we scan the density-temperature space using a canonical ensemble method.…

高能物理 - 格点 · 物理学 2009-04-14 Anyi Li , Xiangfei Meng , Andrei Alexandru , Keh-Fei Liu

Criticality of chiral phase transition at finite temperature is investigated in a soft-wall AdS/QCD model with $SU_L(N_f)\times SU_R(N_f)$ symmetry, especially for $N_f=2,3$ and $N_f=2+1$. It is shown that in quark mass plane($m_{u/d}-m_s$)…

高能物理 - 唯象学 · 物理学 2019-02-20 Jianwei Chen , Song He , Mei Huang , Danning Li

The coronagraph is an instrument enables the investigation of faint features in the vicinity of the Sun, particularly coronal mass ejections (CMEs). So far coronagraphic observations have been mainly used to determine the geometric and…

太阳与恒星天体物理 · 物理学 2017-01-18 Kyuhyoun Cho , Jongchul Chae , Eun-kyung Lim , Kyung-suk Cho , Su-Chan Bong , Heesu Yang

We study the molecular mode coupling theory for a liquid of diatomic molecules. The equations for the critical tensorial nonergodicity parameters ${\bf F}_{ll'}^m(q)$ and the critical amplitudes of the $\beta$ - relaxation ${\bf…

无序系统与神经网络 · 物理学 2016-08-31 A. Winkler , A. Latz , R. Schilling , C. Theis

Parametric expressions are used to calculate the isothermal susceptibility, specific heat, order parameter, and correlation length along the critical isochore and coexistence curve from the asymptotic region to crossover region. These…

凝聚态物理 · 物理学 2009-11-07 Fang Zhong , M. Barmatz , Inseob Hahn

A novel mathematical rigorous method to obtain the vapor-liquid equilibrium curves near the critical point has been proposed covering the cases of well-known and commonly used equations of state for real gases - Van der Waals and Dieterici,…

统计力学 · 物理学 2015-11-03 Beata Staśkiewicz , Robert Stańczy

We perform large-scale Quantum Monte Carlo (QMC) simulations for strongly interacting bosons in a 2D optical lattice trap, and confirm an excellent agreement with the benchmarking in-situ density measurements by the Chicago group [1]. We…

量子气体 · 物理学 2011-03-16 Shiang Fang , Chia-Ming Chung , Ping Nang Ma , Pochung Chen , Daw-Wei Wang

We study $\l\f^4$ theory using an environmentally friendly finite-temperature renormalization group. We derive flow equations, using a fiducial temperature as flow parameter, develop them perturbatively in an expansion free from ultraviolet…

高能物理 - 理论 · 物理学 2015-06-26 M. A. van Eijck , Denjoe O'Connor , C. R. Stephens

Following Vasisht et al's identification of the second critical point (Tc2,Pc2) for liquid silicon in the Stillinger-Weber (S-W) model for silicon, we study the variation of Tc2,Pc2 with tetrahedral repulsion parameter in an extension of…

无序系统与神经网络 · 物理学 2016-11-03 C. Austen Angell , Vitaliy Kapko

We report results of fully non-perturbative, Path Integral Monte Carlo (PIMC) calculations for dilute neutron matter. The neutron-neutron interaction in the s channel is parameterized by the scattering length and the effective range. We…

核理论 · 物理学 2011-02-21 Gabriel Wlazlowski , Piotr Magierski

We demonstrate the applicability of the $\epsilon$-convergence algorithm in extracting the critical temperatures and critical exponents of three-dimensional Ising models. We analyze the low temperature magnetization as well as high…

统计力学 · 物理学 2024-10-22 M V Vismaya , M V Sangaranarayanan