搜索结果: 1-15 共查到“知识库 声学 noise”相关记录18条 . 查询时间(0.109 秒)
This investigation proposes a novel all-optical phase noise averager to reduce residual phase noise in the differential phase-shift keying (DPSK) transmission system with phase-preserving amplitude re...
Evaluation the Performance Improvement of DPSK Signals by Amplitude Regeneration and Phase Noise Suppression
Current and noise correlations in a double dot Cooper pair beam splitter
Current noise correlations double dot Cooper pair beam splitter
2010/11/23
We consider a double quantum dot coupled to two normal leads and one superconducting lead,
modeling the Cooper pair beam splitter studied in two recent experiments. Starting from a microscopic Hamilt...
The Kondo crossover in shot noise of a single quantum dot with orbital degeneracy
Kondo crossover orbital degeneracy
2010/11/19
We investigate out of equilibrium transport through an orbital Kondo system realized in a single quantum dot, described by the multiorbital impurity Anderson model. Shot noise and current are calculat...
Stationary and dynamical properties of bistable Langevin model under noise-intensity fluctuation
Superstatistics Stochastic volatility Stationary distribution
2010/11/19
In this paper, we study effects of noise-intensity fluctuations on stationary and dynamical prop-erties of a bistable Langevin model, based on concepts of stochastic volatility model and super-statist...
Noise induced state transitions, intermittency and universality in the noisy Kuramoto-Sivashinksy equation
Noise induced state transitions intermittency universality noisy Kuramoto-Sivashinksy equation
2010/11/18
We analyze the effect of pure additive noise on the long-time dynamics of the noisy Kuramoto-
Sivashinsky (KS) equation in a regime close to the instability onset. We show that when the noise is high...
Two-mode Correlation of Microwave Quantum Noise Generated by Parametric Down-Conversion
Two-mode Correlation of Microwave Quantum Noise Parametric Down-Conversion
2010/11/24
In this letter, we report the observation of the correlation between two modes of microwave
radiation resulting from the ampli cation of quantum noise by the Josephson Parametric Converter.This proce...
Reduction of quantum noise in optical interferometers using squeezed light
Reduction quantum noise optical interferometers squeezed light
2010/11/8
We study the photon counting noise in optical interferometers used for gravitational wave detection. In order to reduce quantum noise a squeezed vacuum state is injected into the usually unused input ...
Efficient entanglement distribution for quantum communication against collective noise
Efficient entanglement distribution quantum communication against collective noise
2010/10/29
We present an efficient faithful entanglement distribution scheme for quantum communication against collective noise. Its setup is composed of polarizing beam splitters, half wave plates, polarization...
Quantum capacity under adversarial quantum noise: arbitrarily varying quantum channels
Quantum capacity adversarial quantum noise arbitrarily varying quantum channels
2010/10/29
We investigate entanglement transmission over an unknown channel in the presence of a third party (called the adversary), which is enabled to choose the channel from a given set of memoryless but non...
Do revivals of quantum correlations necessarily require quantum noise?
revivals quantum correlations necessarily quantum noise
2010/10/21
We show that in an N-partite system, where each subsystem is subject to a local completely
positive map, total correlations cannot, at later times, exceed their initial value. We then analyze the dyn...
Thermal noise engines
Johnson-Nyquist noise fluctuation-dissipation energy-harvesting quantum heat engines
2010/10/27
Electrical heat engines driven by the Johnson-Nyquist noise of resistors are introduced.
They utilize Coulomb's law and the fluctuation-dissipation theorem of statistical physics that is the reverse ...
Quantum noise and self-sustained radiation of PT-symmetric systems
Quantum noise self-sustained radiation PT-symmetric systems
2010/3/10
The observation that PT-symmetric Hamiltonians can have real-valued energy levels even if they are non-hermitian has triggered intense activities, with experiments in particular focusing on optical sy...
Extracting strong measurement noise from stochastic series: applications to empirical data
stochastic series noise empirical data
2010/4/6
It is a big challenge in the analysis of experimental data to disentangle the unavoidable measurement noise from the intrinsic dynamical noise. Here we present a general operational method to extract ...
Dynamical properties of a mutualism system in the presence of noise and time delay
time delay relaxation time correlation function mutualism system
2010/7/5
The normalized correlation function C(s) and the associated relaxation time Tc of the mutualism system in the presence of noise and time delay are investigated. The effects of noise and time delay on ...