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An oscillatory magnetic field dependence of the DC voltage is observed when a low-frequency current flows through superconducting Sn-Ge thin-film composites near the percolation threshold. The paper also studies the experimental…

超导电性 · 物理学 2009-10-31 A. M. Glukhov , A. S. Pokhila , I. M. Dmitrenko , A. E. Kolinko , A. P. Panchekha

We describe a set up for measurements of low frequency (1 mHz < f < 20 Hz) conductance fluctuations in a solid conductor. The set-up uses a five probe a.c. measurement technique and extensive digital signal processing to reach a noise floor…

其他凝聚态物理 · 物理学 2007-05-23 Arindam Ghosh , Swastik Kar , Aveek Bid , A. K. Raychaudhuri

The paper describes the means to reveal and characterize slow periodic modulation of qubit frequency. Such modulation can come from different sources and can impact qubit stability. We show that the modulation leads to very sharp peaks in…

量子物理 · 物理学 2024-08-16 Filip Wudarski , Yaxing Zhang , Juan Atalaya , M. I. Dykman

We study the statistical fluctuations of the Casimir potential felt by an atom approaching a dielectric disordered medium. Starting from a microscopic model for the disorder, we calculate the variance of potential fluctuations in the limit…

量子物理 · 物理学 2015-04-15 Nicolas Cherroret , Romain Guérout , Astrid Lambrecht , Serge Reynaud

We investigate consecutive absorption or emission of photons of the quantum mechanical harmonic oscillator as a possible source of 1/f fluctuations. Separating the absorption and emission process, we show that consecutively absorbed or…

数据分析、统计与概率 · 物理学 2012-05-31 Ferdinand Grueneis

Electric current fluctuations are one type of unavoidable machine imperfections,and induce magnetic-field perturbations as a source of instabilities in accelerators. This paper presents measurement-based methodology of modeling the…

加速器物理 · 物理学 2008-03-18 P. S. Yoon

We measure current fluctuations of mesoscopic devices in the quantum regime, when the frequency is of the order of or higher than the applied voltage or temperature. Detection is designed to probe separately the absorption and emission…

介观与纳米尺度物理 · 物理学 2009-11-11 P. -M. Billangeon , F. Pierre , H. Bouchiat , R. Deblock

Low-frequency disturbances of power quality are one of the most common disturbances in the power grid. These disturbances are most often the result of the impact of power electronic and energy-saving devices, the number of which is…

信号处理 · 电气工程与系统科学 2024-08-02 Piotr Kuwałek , Grzegorz Wiczyński

Spectral diffusion (SD) represents a substantial obstacle towards implementation of solid-state quantum emitters as a source of indistinguishable photons. By performing high-resolution emission spectroscopy for individual colloidal quantum…

介观与纳米尺度物理 · 物理学 2023-11-21 Frieder Conradt , Vincent Bezold , Volker Wiechert , Steffen Huber , Stefan Mecking , Alfred Leitenstorfer , Ron Tenne

Silicon quantum dot qubits show great promise but suffer from charge noise with a 1/f^\alpha spectrum, where f is frequency and \alpha \lesssim 1. It has recently been proposed that 1/f^\alpha noise spectra can emerge from a few thermally…

介观与纳米尺度物理 · 物理学 2023-10-27 Dan Mickelsen , Herve M. Carruzzo , Susan N. Coppersmith , Clare C. Yu

The value of the scaling parameter $E_{\text{eff}}$ of the temperature dependence for current generated in silicon bulk is investigated for highly irradiated devices. Measurements of devices irradiated to fluences above $1 \times 10^{15}…

仪器与探测器 · 物理学 2019-09-04 Felix Wizemann , Andreas Gisen , Kevin Kröninger , Jens Weingarten

Voltage fluctuations are common disturbances in power grids, therefore the effective and selective process of identification and localization of individual voltage fluctuations sources is necessary for the minimization of such disturbances.…

信号处理 · 电气工程与系统科学 2025-05-02 Piotr Kuwałek

The conductance fluctuations of a metallic wire which is interrupted by a small tunnel junction has been explored experimentally. In this system, the bias voltage V, which drops almost completely inside the tunnel barrier, is used to probe…

介观与纳米尺度物理 · 物理学 2009-10-30 Alexander van Oudenaarden , M. H. Devoret , E. H. Visscher , Yu. V. Nazarov , J. E. Mooij

We consider a model of a distribution feeder connecting multiple loads to the sub-station. Voltage is controlled directly at the head of the line (sub-station), however, voltage anywhere further down the line is subject to fluctuations,…

适应与自组织系统 · 物理学 2011-06-27 M. Chertkov , S. Backhaus , K. Turtisyn , V. Chernyak , V. Lebedev

This report is aimed at reviving the explanation of flicker-noise observations as the result of spectral measurement of very low-frequency but stationary narrow-band fluctuations named as infralow-frequency noise (ILF noise) [A. Ya.…

统计力学 · 物理学 2009-11-11 A. Ya. Shul'man

Electronic quantum effects in disordered conductors are controlled by the dephasing rate of conduction electrons. This rate is expected to vanish with the temperature. We consider the very intriguing recently reported apparent saturation of…

介观与纳米尺度物理 · 物理学 2009-10-31 Yoseph Imry , Hidetoshi Fukuyama , Peter Schwab

Electrical measurements of ferroelectric switching kinetics are widely used to probe the dynamics of polarization reversal, yet the influence of the measurement circuit is often underappreciated. In this paper, we show that the interplay…

材料科学 · 物理学 2026-04-08 Yi Liang , Pat Kezer , John T. Heron

A highly degenerate family of states [proposed in PRB 63, 134503 (2001)] is proven to really minimize the Hamiltonian of the fully frustrated XY model on a dice lattice. The harmonic fluctuations are shown to be no consequence for the…

超导电性 · 物理学 2009-11-10 S. E. Korshunov

The correlation of phase fluctuations in any type of oscillator fundamentally defines its spectral shape. However, in nonlinear oscillators, such as spin torque nano oscillators, the frequency spectrum can become particularly complex. This…

We report the statistical properties of the fluctuations of the energy flux in an electronic RC circuit driven with a stochastic voltage. The fluctuations of the power injected in the circuit are measured as a function of the damping rate…

统计力学 · 物理学 2009-05-06 Claudio Falcón , Eric Falcon