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相关论文: On the Bit Error Rate Fluctuation Induced by Multi…

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GEneral Matrix Multiply (GEMM) is a central operation in deep learning and corresponds to the largest chunk of the compute footprint. Therefore, improving its efficiency is an active topic of ongoing research. A popular strategy is the use…

机器学习 · 计算机科学 2024-03-13 Zhanpeng Zeng , Karthikeyan Sankaralingam , Vikas Singh

The method of defining quantum joint probabilities of two events is applied to a multimode system of trapped Bose-condensed atoms. The coherent modes are generated by modulating the trapping potential with an alternating field with a…

量子气体 · 物理学 2015-06-17 V. I. Yukalov , E. P. Yukalova , D. Sornette

In coherent control, electromagnetic vacuum fluctuations usually cause coherence loss through irreversible spontaneous emission. However, since the dissipation via emission is essentially due to correlation of the fluctuations, when…

介观与纳米尺度物理 · 物理学 2015-03-13 Jing Wang , Ren-Bao Liu , B. -F. Zhu , L. J. Sham , D. G. Steel

We study matrix element fluctuations of the two-body screened Coulomb interaction and of the one-body surface charge potential in ballistic quantum dots, comparing behavior in actual chaotic billiards with analytic results previously…

介观与纳米尺度物理 · 物理学 2011-06-29 L. Kaplan , Y. Alhassid

In recent advancements of quantum computing utilizing spin qubits, it has been demonstrated that this platform possesses the potential for implementing two-qubit gates with fidelities exceeding 99.5%. However, as with other qubit platforms,…

量子物理 · 物理学 2024-03-20 Irina Heinz , Adam R. Mills , Jason R. Petta , Guido Burkard

The scaling of decoherence rates with the number of q-bits is studied for a simple quantum computer model. Two state q-bits are localised around well-separated positions via trapping potentials, but vibrational motion of q-bits centre of…

量子物理 · 物理学 2015-06-26 B. J. Dalton

Errors in quantum computers are of two kinds: sudden perturbations to isolated qubits, and slow random drifts of all the qubits. The latter may be reduced, but not eliminated, by means of symmetrization, namely by using many replicas of the…

量子物理 · 物理学 2007-05-23 Asher Peres

A general error correction method is presented which is capable of correcting coherent errors originating from static residual inter-qubit couplings in a quantum computer. It is based on a randomization of static imperfections in a…

量子物理 · 物理学 2007-05-23 O. Kern , G. Alber , D. L. Shepelyansky

Fluctuations in the abundance of molecules in the living cell may affect its growth and well being. For regulatory molecules (e.g., signaling proteins or transcription factors), fluctuations in their expression can affect the levels of…

分子网络 · 定量生物学 2009-11-13 Erel Levine , Terence Hwa

Intelligent entities such as self-driving vehicles, with their data being processed by machine learning units (MLU), are developing into an intertwined part of networks. These units handle distorted input but their sensitivity to noisy…

信息论 · 计算机科学 2022-05-19 Afsaneh Gharouni , Peter Rost , Andreas Maeder , Hans Schotten

We present an inequality that bounds the short-term memory capability of dynamical systems from below. It can be interpreted as an uncertainty relation between a measure of short-term memory and that of the size of state fluctuations…

适应与自组织系统 · 物理学 2026-05-26 Taichi Haruna , Kohei Nakajima

State-of-the-art single-qubit gates on superconducting transmon qubits can achieve the fidelities required for error-corrected computations. However, parameter fluctuations due to qubit instabilities, environmental changes, and control…

We investigate the dependence of the bit-error-rate (BER) caused by amplifier noise in a linear optical fiber telecommunication system on the fiber birefringence. We show that the probability distribution function (PDF) of BER obtained by…

光学 · 物理学 2009-11-10 Vladimir Chernyak , Michael Chertkov , Igor Kolokolov , Vladimir Lebedev

Recurrent networks of non-linear units display a variety of dynamical regimes depending on the structure of their synaptic connectivity. A particularly remarkable phenomenon is the appearance of strongly fluctuating, chaotic activity in…

神经元与认知 · 定量生物学 2017-05-10 Francesca Mastrogiuseppe , Srdjan Ostojic

We describe a method of analysis which allows for reconstructing the nonlinear disturbance of a high Q harmonic oscillator. When the oscillator is driven with two or more frequencies, the nonlinearity causes intermodulation of the drives,…

介观与纳米尺度物理 · 物理学 2010-04-19 Carsten Hutter , Daniel Platz , E. A. Tholen , T. H. Hansson , D. B. Haviland

We consider one source of decoherence for a single trapped ion due to intensity and phase fluctuations in the exciting laser pulses. For simplicity we assume that the stochastic processes involved are white noise processes, which enables us…

量子物理 · 物理学 2009-10-30 S. Schneider , G. J. Milburn

The inclusion of a fragmentation mechanism in population balance equations introduces complex interactions that make the analytical or even computational treatment much more difficult than for the pure aggregation case. This is specially…

无序系统与神经网络 · 物理学 2022-03-14 Arturo Berrones-Santos , Luis Benavides-Vázquez , Elisa Schaeffer , Javier Almaguer

Neural scaling laws provide a predictable recipe for AI advancement: reducing numerical precision should linearly improve computational efficiency and energy profile ($E \propto \mathrm{bits}$). In this paper, we demonstrate that this…

人工智能 · 计算机科学 2026-05-04 Henry Han , Xiyang Liu , Xiaodong Wang , Fei Han , Xiaodong Li

Interference Alignment is a new solution to over- come the problem of interference in multiuser wireless com- munication systems. Recently, the Compute-and-Forward (CF) transform has been proposed to approximate the capacity of K- user…

信息论 · 计算机科学 2014-10-09 Ehsan Ebrahimi Khaleghi , Jean-Claude Belfiore

We consider a central system which is coupled via dephasing to an open system, i.e. an intermediate system which in turn is coupled to another environment. Considering intermediate and far environment as one composite system, the coherences…

量子物理 · 物理学 2016-09-28 Thomas Gorin , Héctor J. Moreno , Thomas H. Seligman