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We analyze the effects of roughness in the magnitude of the magnetic field produced by a current carrying microwire, which is caused by geometric fluctuation of the edge of wire. The relation between the fluctuation of the trapping…

Quantum Gases · Physics 2015-05-18 Muzhi Wu , Xiaoji Zhou , W. M. Liu , Xuzong Chen

Noise-induced failures in the stabilization of an unstable orbit in the one-dimensional logistic map are considered as large fluctuations from a stable state. The properties of the large fluctuations are examined by determination and…

Chaotic Dynamics · Physics 2009-11-10 I. A. Khovanov , N. A. Khovanova , P. V. E. McClintock

We consider the effect of classical stochastic noise on control laser pulses used in a scheme for transferring quantum information between atoms, or quantum dots, in separate optical cavities via an optical connection between cavities. We…

Quantum Physics · Physics 2009-11-07 T. M. Stace , C. H. W. Barnes

This is a study of phase-coherent conduction through a ballistic point contact with disordered leads. The disorder imposes mesoscopic (sample-to-sample) fluctuations and weak-localization corrections on the conductance, and also leads to…

Condensed Matter · Physics 2007-05-23 C. W. J. Beenakker , J. A. Melsen

This paper studies noise synchronisation in terms of random pullback attractors and their instabilities. We consider an ensemble of uncoupled lasers, each being a limit-cycle oscillator, which are driven by the same external white Gaussian…

Dynamical Systems · Mathematics 2011-04-21 Sebastian M. Wieczorek

Continuous Wave Laser Beam (LB) melting offers control over the localized heating and cooling of melt pools for welding, brazing, additive manufacturing, and solidification. Research into laser-liquid metal interactions have primarily…

Materials Science · Physics 2024-08-12 Jonathan S. Paras , Randy D. Curry , James A. Ohlhausen , Michael J. Abere

Laser phase noise remains a limiting factor in many experimental settings, including metrology, time-keeping, as well as quantum optics. Hitherto this issue was addressed at low frequencies, ranging from well below 1 Hz to maximally 100…

Optics · Physics 2021-03-31 Michał Parniak , Ivan Galinskiy , Timo Zwettler , Eugene S. Polzik

The influence of random irregularities of electron density on quasi-thermal noise spectra in plasma is considered in the paper. Quasi-thermal noise spectrum of plasma in state near the thermal equilibrium is determined by effective…

Plasma Physics · Physics 2007-05-23 N. A. Zabotin , Yu. V. Chugunov , E. A. Mareev , A. G. Bronin

We report a technique for coherence transfer of laser light through a fiber link, where the optical phase noise induced by environmental perturbation via the fiber link is compensated by remote users with passive phase noise correction,…

Optics · Physics 2020-07-30 Liang Hu , Xueyang Tian , Guiling Wu , Mengya Kong , Jianguo Shen , Jianping Chen

We incorporate the effects of fluctuations in a density functional analysis of the freezing of a colloidal liquid in the presence of an external potential generated by interfering laser beams. A mean field treatment, using a density…

Soft Condensed Matter · Physics 2007-05-23 J. Chakrabarti , Supurna Sinha

Improvement in time resolution sometimes introduces short-range random noises into temporal data sequences. These noises affect the results of power-spectrum analyses and the Detrended Fluctuation Analysis (DFA). The DFA is one of useful…

Data Analysis, Statistics and Probability · Physics 2009-02-05 Shin-ichi Tadaki

The linewidth of an atom laser can be limited by excitation of higher energy modes in the source Bose-Einstein condensate, energy shifts in that condensate due to the atomic interactions, or phase diffusion of the lasing mode due to those…

Quantum Physics · Physics 2013-05-29 Mattias T. Johnsson , Joseph J. Hope

Quantum fluctuations are inherent in open quantum systems and they affect not only the statistical properties of the initial state but also the time evolution of the system. Using a generic minimal model, we show that quantum noise…

Quantum Gases · Physics 2024-12-17 Richelle Jade L. Tuquero , Jayson G. Cosme

We undertake a preliminary numerical investigation to understand how the addition of white and colored noise to a time series affects the topology and structure of the underlying chaotic attractor. We use the methods and measures of…

Data Analysis, Statistics and Probability · Physics 2015-08-13 Rinku Jacob , K. P. Harikrishnan , R. Misra , G. Ambika

Formation of twin boundaries during the growth of semiconductor nanowires is very common. However, the effects of such planar defects on the electronic and optical properties of nanowires are not very well understood. Here, we use a…

Materials Science · Physics 2019-09-04 Divyanshu Gupta , Nebile Isik Goktas , Amit Rao , Ray LaPierre , Oleg Rubel

We have experimentally quantified the temporal structural diversity from the coordinate fluctuations of a laser beam propagating through isotropic optical turbulence. The main focus here is on the characterization of the long-range…

Statistical Mechanics · Physics 2017-10-25 Felipe Olivares , Luciano Zunino , Damián Gulich , Darío G. Pérez , Osvaldo A. Rosso

Single-section quantum dash semiconductor lasers have attracted much attention as an integrated and simple platform for the generation of THz-wide and flat optical frequency combs in the telecom C-band. In this work, we present an…

Motivated by recent experiments, which demonstrated lasing and cooling of the electromagnetic field in an electrical resonator coupled to a superconducting qubit, we study the phase coherence and diffusion of the system in the lasing state.…

Mesoscale and Nanoscale Physics · Physics 2009-08-26 Stephan André , Valentina Brosco , Alexander Shnirman , Gerd Schön

The sensitivity of aLIGO detectors is adversely affected by the presence of noise caused by light scattering. Low frequency seismic disturbances can create higher frequency scattering noise adversely impacting the frequency band in which we…

Instrumentation and Methods for Astrophysics · Physics 2023-11-13 Siddharth Soni , Jane Glanzer , Anamaria Effler , Valera Frolov , Gabriela González , Arnaud Pele , Robert Schofield

We study the effects of noise on the collective dynamics of an ensemble of coupled phase oscillators whose natural frequencies are all identical, but whose coupling strengths are not the same all over the ensemble. The intensity of noise…

Adaptation and Self-Organizing Systems · Physics 2015-05-13 Damian H. Zanette
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