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The nonextensive statistical ensembles are revisited for the complex systems with long-range interactions and long-range correlations. An approximation, the value of nonextensive parameter (1-q) is assumed to be very tiny, is adopted for…

统计力学 · 物理学 2020-02-26 Yahui Zheng , Jiulin Du , Linxia Liu , Huijun Kong

In the framework of a multi-source thermal model at the partonic-level, we have analyzed transverse momentum spectra of hadrons measured by the ALICE Collaboration in proton-proton ($pp$ or $p$-$p$) collisions at the center-of-mass energy…

高能物理 - 唯象学 · 物理学 2022-07-28 Pei-Pin Yang , Mai-Ying Duan , Fu-Hu Liu , Raghunath Sahoo

A new approach to non-extensive thermodynamical systems with non-additive energy and entropy is proposed. The main idea of the paper is based on the statistical matching of the thermodynamical systems with the additive multi-step Markov…

数据分析、统计与概率 · 物理学 2007-05-23 S. S. Apostolov , Z. A. Mayzelis , O. V. Usatenko , V. A. Yampol'skii

Starting from the experimental evidence that high-energy nucleus-nucleus collisions cannot be described in terms of superpositions of elementary nucleon-nucleon interactions, we analyze the possibility that memory effects and long-range…

核理论 · 物理学 2009-01-07 W. M. Alberico , A. Lavagno , P. Quarati

The transverse momentum distributions of various hadrons produced in most central Pb+Pb collisions at LHC energy Root(s_NN) = 2.76 TeV have been studied using our earlier proposed unified statistical thermal freeze-out model. The calculated…

高能物理 - 唯象学 · 物理学 2014-11-18 Saeed Uddin , Inam-ul Bashir , Riyaz Ahmed Bhat , M. Farooq Mir

The influence of non-extensive Tsallis statistics on the hadron phase structure has been investigated using the Polyakov-quark-meson (PQM) model. The analysis examines the non-extensive effects on the temperature dependence of PQM order…

高能物理 - 唯象学 · 物理学 2024-04-19 Abdel Magied Diab

Nonequilibrium thermodynamics has shown its applicability in a wide variety of different situations pertaining to fields such as physics, chemistry, biology, and engineering. As successful as it is, however, its current formulation…

凝聚态物理 · 物理学 2009-11-07 J. M. G. Vilar , J. M. Rubi

Starting from the basic prescriptions of the Tsallis' nonextensive thermostatistics, i.e. generalized entropy and normalized q-expectation values, we study the relativistic nonextensive thermodynamics and derive a Boltzmann transport…

统计力学 · 物理学 2015-06-24 A. Lavagno

A systematic analysis of transverse momentum and rapidity distributions measured in high-energy proton - proton (pp) collisions for energies ranging from 53 GeV to 7 TeV using Tsallis thermodynamics is presented. The excellent description…

高能物理 - 唯象学 · 物理学 2015-06-23 L. Marques , J. Cleymans , A. Deppman

We investigate a temperature-based model, called extended two-temperature model (eTTM), that describes the electronic non-equilibrium and its effect on energy dissipation in metals after ultrashort laser excitation. We derive and discuss…

材料科学 · 物理学 2023-08-03 Markus Uehlein , Sebastian T. Weber , Baerbel Rethfeld

We have applied the non-extensive statistical mechanics to free electrons in several metals to calculate the electronic specific heat at low temperature. In this case, the Fermi-Dirac (FD) function is modified from its Boltzmann-Gibbs (BG)…

统计力学 · 物理学 2019-04-09 Arvind Khuntia , Gayatri Sahu , Raghunath Sahoo , Durga P. Mahapatra , Niranjan Barik

Magnetic and thermodynamical properties of itinerant-electron (metallic) ferromagnets described by the Hubbard model have been discussed with the use of the generalized Fermi-Dirac (GFD) distribution for nonextensive quantum systems. We…

统计力学 · 物理学 2015-05-13 Hideo Hasegawa

We comment on letter ``Is Tsallis Thermodynamics Nonextensive?'' by E. Vives and A. Planes [Phys. Rev. Lett. 88, 020601 (2002) cond-mat/0106428]. It is pointed out that the Euler and Gibbs-Duhem equations derived in the letter can serve to…

统计力学 · 物理学 2007-05-23 V. Garcia-Morales J. Cervera

We have studied transverse momentum ($p_{\rm{T}}$) spectra of charged hadrons in various pseudo-rapidity ranges for p-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV. The medium effects such as collective flow and energy loss resulting…

高能物理 - 唯象学 · 物理学 2024-07-22 Kapil Saraswat , Deependra Singh Rawat , Akash Pandey , Venktesh Singh , H. C. Chandola

We discuss the occurrence of negative specific heat in a nonextensive system which has an equilibrium second-order phase transition.The specific heat is negative only in a transient regime before equilibration, in correspondence to…

核理论 · 物理学 2007-05-23 A. Rapisarda , V. Latora

The transverse momentum spectra of secondary pions and kaons, produced in $P+P$ and various central $Pb+Pb$ collisions at $\sqrt{s_{NN}}=2.76$ TeV at LHC, have been analyzed systematically with an approach based on Tsallis non-extensive…

核理论 · 物理学 2014-08-27 Bhaskar De

We analyse the transverse momentum ($p_{\rm T}$)-spectra as a function of charged-particle multiplicity at midrapidity ($|y| < 0.5$) for various identified particles such as $\pi^{\pm}$, $K^{\pm}$, $K_S^0$, $p+\overline{p}$, $\phi$, $K^{*0}…

高能物理 - 唯象学 · 物理学 2019-01-17 Arvind Khuntia , Himanshu Sharma , Swatantra Kumar Tiwari , Raghunath Sahoo , Jean Cleymans

A nonextensive thermostatic approach to chaotic dynamical systems is developed by expressing generalized Tsallis distribution as escort distribution. We explicitly show the thermodynamic limit and also derive the Legendre Transform…

统计力学 · 物理学 2009-10-31 Ramandeep S. Johal , Renuka Rai

The universality of electric charge as a quantum number allows thermoelectric properties to manifest across diverse systems, starting from a hot quantum chromodynamic matter in heavy-ion collisions at a high energy scale to semiconductors…

高能物理 - 唯象学 · 物理学 2026-02-20 Kamaljeet Singh , Kshitish Kumar Pradhan , Raghunath Sahoo

The definitions of the temperature in the nonextensive statistical thermodynamics based on Tsallis entropy are analyzed. A definition of pressure is proposed for nonadditive systems by using a nonadditive effective volume. The…

数据分析、统计与概率 · 物理学 2009-11-10 Qiuping A. Wang , Laurent Nivanen , Alain Le Mehaute , Michel Pezeril