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It is known that temperature estimates of macroscopic systems in equilibrium are most precise when their energy fluctuations are large. However, for nanoscale systems deviations from standard thermodynamics arise due to their interactions…

量子物理 · 物理学 2018-06-14 Harry J. D. Miller , Janet Anders

We explore thermodynamics of a quantum membrane, with a particular application to suspended graphene membrane and with a particular focus on the thermal expansion coefficient. We show that an interplay between quantum and classical…

介观与纳米尺度物理 · 物理学 2016-11-30 I. S. Burmistrov , I. V. Gornyi , V. Yu. Kachorovskii , M. I. Katsnelson , A. D. Mirlin

Non-equilibrium systems under temperature modulation are investigated in the light of the stochastic thermodynamics. We show that, for small amplitudes of the temperature oscillations, the heat flux behaves sinusoidally with time, a result…

统计力学 · 物理学 2019-09-04 Mário J. de Oliveira

A study of the correlation between nuclear temperatures and symmetry energy is presented for heavy-ion collisions at intermediate energies via the isospin-dependent quantum molecular-dynamics model. It is found that different symmetry…

核理论 · 物理学 2022-08-10 Fan Zhang , Kai-Lei Wang , Li-Ding Jin , Hui-Xiao Duan , Cheng Li

We derive the thermal correlators for twisted quantum fields on noncommutative spacetime. We show that the thermal expectation value of the number operator is same as in commutative spacetime, but that higher correlators are sensitive to…

高能物理 - 理论 · 物理学 2014-11-20 Prasad Basu , Rahul Srivastava , Sachindeo Vaidya

To predict the mean temperature profiles in turbulent thermal convection, the thermal boundary layer (BL) equation including the effects of fluctuations has to be solved. In Shishkina et al., Phys. Rev. Lett. 114 (2015), the thermal BL…

流体动力学 · 物理学 2017-11-22 Olga Shishkina , Susanne Horn , Mohammad S. Emran , Emily S. C. Ching

In this paper, we analyze the scaling of velocity structure functions of turbulent thermal convection. Using high-resolution numerical simulations, we show that the structure functions scale similar to those of hydrodynamic turbulence, with…

流体动力学 · 物理学 2019-11-15 Shashwat Bhattacharya , Shubhadeep Sadhukhan , Anirban Guha , Mahendra K. Verma

We analyse the impact of temperature on the diffusion coefficient of an inertial Brownian particle moving in a symmetric periodic potential and driven by a symmetric time-periodic force. Recent studies have revealed the low friction regime…

统计力学 · 物理学 2023-06-28 I. G. Marchenko , V. Aksenova , I. I. Marchenko , J. Łuczka , J. Spiechowicz

Based on statistical mechanics, a macroscopically homogeneous system, i.e., a single phase in the present context, is composed of many independent configurations that the system embraces. The macroscopical properties of the system are…

统计力学 · 物理学 2024-02-07 Zi-Kui Liu , Nigel L. E. Hew , Shun-Li Shang

For particles in an anharmonic potential, classical mechanics asserts that there is a renormalization of the bare frequency of the oscillatory motion, and statistical mechanics claims that the anharmonicity causes a correction to the heat…

统计力学 · 物理学 2023-06-14 Y. T. Liu , Y. H. Zhao , Y. Zhong , J. H. Zhang , Q. H. Liu

The density of accessible levels in the ($^3$He,$\alpha \gamma$) reaction has been extracted for the $^{162}$Dy, $^{166}$Er and $^{172}$Yb nuclei. The nuclear temperature is measured as a function of excitation energy in the region of 0 --…

This is a historical note. In 1993 we calculated space, time and temperature dependent correlation function in isotropic version of one dimensional XY spin chain. The correlation function decays exponentially with time and space separation.…

量子物理 · 物理学 2015-05-14 A. Its , A. Izergin , V. Korepin , N. Slavnov

Sequences of experimental ground-state energies for both odd and even $A$ are mapped onto concave patterns cured from convexities due to pairing and/or shell effects. The same patterns, completed by a list of excitation energies, give…

核理论 · 物理学 2009-09-29 B. R. Barrett , B. G. Giraud , B. K. Jennings , N. P. Toberg

Compressible isothermal turbulence is analyzed under the assumption of homogeneity and in the asymptotic limit of a high Reynolds number. An exact relation is derived for some two-point correlation functions which reveals a fundamental…

太阳与恒星天体物理 · 物理学 2015-05-30 Sebastien Galtier , Supratik Banerjee

One of the principal objectives of quantum thermodynamics is to explore quantum effects and their potential beneficial role in thermodynamic tasks like work extraction or refrigeration. So far, even though several papers have already shown…

量子物理 · 物理学 2019-04-22 C. L. Latune , I. Sinayskiy , F. Petruccione

Thermal density functional theory calculations often use the Mermin-Kohn-Sham scheme, but employ ground-state approximations to the exchange-correlation (XC) free energy. In the simplest solvable nontrivial model, an asymmetric Hubbard…

强关联电子 · 物理学 2016-06-29 Justin C Smith , Aurora Pribram-Jones , Kieron Burke

It is shown that the dependence of negative thermal expansion coefficient of many substances on the temperature contradicts to an important thermodynamic relation. It is supposed that there are oscillations at the Cp(T) and alpha(T) curves…

综合物理 · 物理学 2007-05-23 I. A. Stepanov

When a mass of saturated clay is heated, as in the case of host soils surrounding nuclear waste disposals at great depth, the thermal expansion of the constituents generates excess pore pressures. The mass of clay is submitted to gradients…

地球物理 · 物理学 2012-08-09 Pierre Delage , Nabil Sultan , Yu-Jun Cui

The generalized equipartition theorem known as the conjugate variables theorem (Phys. Rev. E 86, 051136 [2012]), originally obtained in the context of statistical inference of continuous random variables, is extended in this work to the…

统计力学 · 物理学 2024-07-11 Sergio Davis

In this paper, we investigate operator product expansion for thermal correlation function of the two scalar currents. Due to breakdown of Lorentz invariance at finite temperature, more operators of the same dimension appear in the operator…

高能物理 - 唯象学 · 物理学 2009-09-29 Elsen Veli Veliev , Takhmassib M. Aliev