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Memory effects are ubiquitous in small-scale systems. They emerge from interactions between accessible and inaccessible degrees of freedom and give rise to evolution equations that are non-local in time. If the characteristic time scales of…

统计力学 · 物理学 2025-01-22 Kay Brandner

The counterintuitive emergence of order from noise is a central phenomenon in science, ranging from pattern formation and synchronization to order-by-disorder in frustrated systems. While large-scale spatial self-organization induced by…

软凝聚态物质 · 物理学 2026-02-02 Satyam Anand , Guanming Zhang , Stefano Martiniani

We study the dynamics of quantum memory assist entropy uncertainty for qutrit system coupled to an environment modeled by random matrices. The results show that the effect of relative coupling strength on entropy uncertainty is opposite in…

量子物理 · 物理学 2019-12-02 Xu Xiong , Maofa Fang

Uncertainty quantification is vital for decision-making and risk assessment in machine learning. Mean-variance regression models, which predict both a mean and residual noise for each data point, provide a simple approach to uncertainty…

机器学习 · 统计学 2025-12-01 Eliot Wong-Toi , Alex Boyd , Vincent Fortuin , Stephan Mandt

Noise can induce time order in the dynamics of nonlinear dynamical systems. For example, coherence resonance occurs in various neuron models driven by a noise. In studies of coherence resonance, ensemble-averaged measures of the coherence…

适应与自组织系统 · 物理学 2023-10-05 Go Uchida

We consider binary infinite order stochastic chains perturbed by a random noise. This means that at each time step, the value assumed by the chain can be randomly and independently flipped with a small fixed probability. We show that the…

概率论 · 数学 2007-07-20 Pierre Collet , Antonio Galves , Florencia G. Leonardi

We perform network analysis of a system described by the master equation to estimate the lower bound of the steady-state current noise, starting from the level 2.5 large deviation function and using the graph theory approach. When the…

统计力学 · 物理学 2024-10-03 Yasuhiro Utsumi

The uncertainty principle sets limit on our ability to predict the values of two incompatible observables measured on a quantum particle simultaneously. This principle can be stated in various forms. In quantum information theory, it is…

量子物理 · 物理学 2018-09-27 H. Dolatkhah , S. Haseli , S. Salimi , S. A. Khorashad

Classifying the information content of neural spike trains in a linguistic endeavor, an uncertainty relation emerges between the bit size of a word and its duration. This uncertainty is associated with the task of synchronizing the spike…

神经元与认知 · 定量生物学 2015-06-02 F. Tito Arecchi

We analyse the effect of intrinsic fluctuations on the properties of bistable stochastic systems with time scale separation operating under1 quasi-steady state conditions. We first formulate a stochastic generalisation of the quasi-steady…

生物物理 · 物理学 2016-03-02 Roberto de la Cruz , Pilar Guerrero , Fabian Spill , Tomás Alarcón

The retrieval capabilities of associative neural networks can be impaired by different kinds of noise: the fast noise (which makes neurons more prone to failure), the slow noise (stemming from interference among stored memories), and…

无序系统与神经网络 · 物理学 2020-12-10 Elena Agliari , Giordano De Marzo

Neurons in the central nervous system are affected by complex and noisy signals due to fluctuations in their cellular environment and in the inputs they receive from many other cells 1,2. Such noise usually increases the probability that a…

神经元与认知 · 定量生物学 2008-05-06 Boris S. Gutkin , Juergen Jost , Henry C. Tuckwell

We investigate the dynamics of quantum correlations (QC) under the effects of reservoir memory, as a resource for quantum information and computation tasks. Quantum correlations of two-qubit systems are used for implementing quantum…

量子物理 · 物理学 2022-02-17 K. G Paulson , Ekta Panwar , Subhashish Banerjee , R. Srikanth

Reservoir computing is a recent trend in neural networks which uses the dynamical perturbations on the phase space of a system to compute a desired target function. We present how one can formulate an expectation of system performance in a…

神经与进化计算 · 计算机科学 2014-09-02 Alireza Goudarzi , Darko Stefanovic

Designing robust loss functions is popular in learning with noisy labels while existing designs did not explicitly consider the overfitting property of deep neural networks (DNNs). As a result, applying these losses may still suffer from…

机器学习 · 计算机科学 2022-05-27 Hao Cheng , Zhaowei Zhu , Xing Sun , Yang Liu

By introducing extrinsic noise as well as intrinsic uncertainty into a network with stochastic events, this paper studies the dynamics of the resulting Markov random network and characterizes a novel phenomenon of intermittent…

动力系统 · 数学 2021-05-26 Arno Berger , Hong Qian , Shirou Wang , Yingfei Yi

The underdamped, non-linear, generalized Langevin equation is widely used to model coarse-grained dynamics of soft and biological materials. By means of a projection operator formalism, we show under which approximations this equation can…

软凝聚态物质 · 物理学 2022-02-04 Fabian Glatzel , Tanja Schilling

A neural correlate of parametric working memory is a stimulus specific rise in neuron firing rate that persists long after the stimulus is removed. Network models with local excitation and broad inhibition support persistent neural…

神经元与认知 · 定量生物学 2013-10-15 Zachary P. Kilpatrick , Bard Ermentrout , Brent Doiron

Stochastic resonance is a non-linear phenomenon, in which the sensitivity of signal detectors can be enhanced by adding random noise to the detector input. Here, we demonstrate that noise can also improve the information flux in recurrent…

神经元与认知 · 定量生物学 2018-11-30 Patrick Krauss , Karin Prebeck , Achim Schilling , Claus Metzner

Recurrent neural networks are a widely used class of neural architectures. They have, however, two shortcomings. First, it is difficult to understand what exactly they learn. Second, they tend to work poorly on sequences requiring long-term…

机器学习 · 计算机科学 2019-05-08 Cheng Wang , Mathias Niepert