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The Plastic Scintillator Detector (PSD) is one of the main sub-detectors in the DArk Matter Particle Explorer (DAMPE) project. It will be operated over a large temperature range from -$10$ to $30^{\circ}$C, so the temperature effect of the…

Instrumentation and Detectors · Physics 2016-12-13 Zhao-Min Wang , Yu-Hong Yu , Zhi-Yu Sun , Ke Yue , Duo Yan , Yong-Jie Zhang , Yong Zhou , Fang Fang , Wen-Xue Huang , Jun-Ling Chen

We study the temporal fluctuations in time-dependent stock prices (both individual and composite) as a stochastic phenomenon using general techniques and methods of nonequilibrium statistical mechanics. In particular, we analyze stock price…

Physics and Society · Physics 2008-12-02 M. Constantin , S. Das Sarma

This study investigates the impact of molecular thermal fluctuations on compressible decaying isotropic turbulence using the unified stochastic particle (USP) method, encompassing both two-dimensional (2D) and three-dimensional (3D)…

Fluid Dynamics · Physics 2023-07-03 Qihan Ma , Chunxin Yang , Song Chen , Kaikai Feng , Ziqi Cui , Jun Zhang

In this paper we report direct measurement of large low frequency temperature fluctuations in double stranded (ds) DNA when it undergoes thermal denaturation transition. The fluctuation, which occurs only in the temperature range where the…

Statistical Mechanics · Physics 2007-05-23 K. S. Nagapriya , A. K. Raychaudhuri , Dipankar Chatterji

An important question in the physics of superconducting nanostructures is the role of thermal fluctuations on superconductivity in the zero-dimensional limit. Here, we probe the evolution of superconductivity as a function of temperature…

Mesoscale and Nanoscale Physics · Physics 2011-09-13 Ivan Brihuega , Antonio M. Garcia-Garcia , Pedro Ribeiro , Miguel M. Ugeda , Christian H. Michaelis , Sangita Bose , Klaus Kern

Direct correlation between temporal structural fluctuations and electron wind force is demonstrated, for the first time, by STM imaging and analysis of atomically-resolved motion on a thin film surface under large applied current (10e5…

Materials Science · Physics 2007-05-23 O. Bondarchuk , W. G. Cullen , M. Degawa , Ellen D. Williams

In papers on primary state diffusion (Percival 1994, 1995), numerical estimates suggested that fluctuations in the space-time metric on the scale of the Planck time (10^-44s) could be detected using atom interferometers. In this paper we…

Quantum Physics · Physics 2009-10-30 Ian C. Percival , Walter T. Strunz

The temporal evolution of step-edge fluctuations under electromigration conditions is analysed using a continuum Langevin model. If the electromigration driving force acts in the step up/down direction, and step-edge diffusion is the…

Materials Science · Physics 2009-11-13 P. J. Rous , T. W. Bole

The time evolution of the thermally activated decay rates is considered. This evolution is of particular importance for the recent nanoscale experiments discussed in the literature, where the potential barrier is relatively low (or the…

Statistical Mechanics · Physics 2021-04-21 Maria Chushnyakova , Igor Gontchar , Natalya Khmyrova

We follow the temporal evolution of mesoscopic intensity fluctuations and correlation in strongly localized samples. We find an initial burst in relative transmission fluctuations in random one dimensional (1D) samples due to fluctuations…

Disordered Systems and Neural Networks · Physics 2015-06-03 J. Wang , A. A. Chabanov , D. Y. Lu , Z. Q. Zhang , A. Z. Genack

The recent identification of a time and temperature dependent spin glass correlation length, $\xi({t_w},T)$, has consequences for samples of finite size. Qualitative arguments are given on this basis for departures from t/{t_w} scaling for…

Disordered Systems and Neural Networks · Physics 2007-05-23 Y. G. Joh , R. Orbach , G. G. Wood , J. Hammann , E. Vincent

The thermal stability in nanostructured magnetic systems is an important issue for applications in information storage. From a theoretical and simulation perspective, an accurate prediction of thermally-activated transitions is a…

Mesoscale and Nanoscale Physics · Physics 2021-01-04 L. Desplat , J. -V. Kim

Experimental investigation of the resistivity $\rho$, susceptibility $\chi$, specific heat C$_p$, and Hall coefficient R$_H$ of the pyrochlore Cd$_2$Re$_2$O$_7$ reveals the presence of a continuous phase transition of uncertain origin with…

Strongly Correlated Electrons · Physics 2016-08-31 R. Jin , J. He , J. R. Thompson , M. F. Chisholm , B. C. Sales , D. Mandrus

We report the effect of field, temperature and thermal history on the time dependence in resistivity and magnetization in the phase separated state of Al doped Pr$_{0.5}$Ca$_{0.5}$MnO$_3$. The rate of time dependence in resistivity is much…

Strongly Correlated Electrons · Physics 2015-06-05 Devendra Kumar , Kranti Kumar , A. Banerjee , P. Chaddah

Modeling deformation at elevated temperatures using discrete dislocation dynamics (DDD) is a recent area of high interest. However, the literature dedicated to this subject fails to address the variations of DDD parameters with temperature.…

Materials Science · Physics 2017-02-01 Kamyar Davoudi

We analyze the frequency dependence of the dispersion measure (DM), the column density of free electrons to a pulsar, caused by multipath scattering from small scale electron-density fluctuations. The DM is slightly different along each…

Instrumentation and Methods for Astrophysics · Physics 2016-01-21 J. M. Cordes , R. M. Shannon , D. R. Stinebring

Slender liquid nanofilms exposed to large surface thermal gradients are known to undergo thickness fluctuations which rapidly self-organize into arrays of nanoprotrusions with a separation distance of tens of microns. We previously reported…

Soft Condensed Matter · Physics 2019-03-22 Kevin R. Fiedler , Euan McLeod , Sandra M. Troian

Steady progress in the miniaturization of structures and devices has reached a scale where thermal fluctuations become relevant and it is thus important to understand how such fluctuations affect their mechanical stability. Here, we…

Soft Condensed Matter · Physics 2021-02-24 Ali Morshedifard , Miguel Ruiz-Garcia , Mohammad Javad Abdolhosseini Qomi , Andrej Kosmrlj

Suppose that $N_0$ independently diffusing particles, each with diffusivity $D$, are initially released at $x=\ell>0$ on the semi-infinite interval $0\leq x<\infty$ with an absorber at $x=0$. We determine the probability ${\cal P}(N)$ that…

Statistical Mechanics · Physics 2015-06-19 Baruch Meerson , S. Redner

We conduct dislocation dynamics (DD) simulations of Fe periodic single crystals under tensile load at several high strain rates and temperatures. The simulations are enabled by the recent development of temperature-dependent dislocation…

Materials Science · Physics 2013-11-26 Meijie Tang , Jaime Marian