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Binary stochastic neurons (BSNs) are excellent activators for machine learning. An ideal platform for implementing them are low- or zero-energy-barrier nanomagnets (LBMs) possessing in-plane anisotropy (e.g. circular or slightly elliptical…

介观与纳米尺度物理 · 物理学 2023-02-28 Rahnuma Rahman , Supriyo Bandyopadhyay

Much attention has been focused on the design of low barrier nanomagnets (LBM), whose magnetizations vary randomly in time owing to thermal noise, for use in binary stochastic neurons (BSN) which are hardware accelerators for machine…

介观与纳米尺度物理 · 物理学 2023-01-24 Md Ahsanul Abeed , Supriyo Bandyopadhyay

Low energy barrier magnet (LBM) technology has recently been proposed as a candidate for accelerating algorithms based on energy minimization and probabilistic graphs because their physical characteristics have a one-to-one mapping onto the…

新兴技术 · 计算机科学 2025-03-03 Md Golam Morshed , Samiran Ganguly , Avik W. Ghosh

We introduce the concept of a probabilistic or p-bit, intermediate between the standard bits of digital electronics and the emerging q-bits of quantum computing. We show that low barrier magnets or LBM's provide a natural physical…

新兴技术 · 计算机科学 2020-07-16 Kerem Y. Camsari , Brian M. Sutton , Supriyo Datta

Probabilistic (p-) computing, which leverages the stochasticity of its building blocks (p-bits) to solve a variety of computationally hard problems, has recently emerged as a promising physics-inspired hardware accelerator platform. A…

无序系统与神经网络 · 物理学 2025-05-02 Sagnik Banerjee , Shiva T. Konakanchi , Supriyo Datta , Pramey Upadhyaya

Magnetic Random-Access Memory (MRAM) based p-bit neuromorphic computing devices are garnering increasing interest as a means to compactly and efficiently realize machine learning operations in Restricted Boltzmann Machines (RBMs). When…

新兴技术 · 计算机科学 2020-02-04 Paul Wood , Hossein Pourmeidani , Ronald F. DeMara

It has recently been shown that a suitably interconnected network of tunable telegraphic noise generators or "p-bits" can be used to perform even precise arithmetic functions like a 32-bit adder. In this paper we use simulations based on…

介观与纳米尺度物理 · 物理学 2017-04-13 Rafatul Faria , Kerem Yunus Camsari , Supriyo Datta

The slowing down of Moore's Law has led to a crisis as the computing workloads of Artificial Intelligence (AI) algorithms continue skyrocketing. There is an urgent need for scalable and energy-efficient hardware catering to the unique…

新兴技术 · 计算机科学 2023-10-11 Shuvro Chowdhury , Kerem Y. Camsari

Probabilistic computing using probabilistic bits (p-bits) presents an efficient alternative to traditional CMOS logic for complex problem-solving, including simulated annealing and machine learning. Realizing p-bits with emerging devices…

机器学习 · 计算机科学 2026-01-22 Naoya Onizawa , Takahiro Hanyu

Binary stochastic neurons (BSNs) are excellent hardware accelerators for machine learning. A popular platform for implementing them are low- or zero-energy barrier nanomagnets possessing in-plane magnetic anisotropy (e.g. circular disks or…

介观与纳米尺度物理 · 物理学 2022-11-16 Rahnuma Rahman , Supriyo Bandyopadhyay

Probabilistic computing has emerged as a viable approach to treat optimization problems. To achieve superior computing performance, the key aspect during computation is massive sampling and tuning on the probability states of each…

应用物理 · 物理学 2025-02-07 Yadi Wang , Bin Chen , Wenping Gao , Biying Ye , Chang Niu , Wenbin Wang , Yinyan Zhu , Weichao Yu , Hangwen Guo , Jian Shen

A probabilistic-bit (p-bit) is the fundamental building block in the circuit network of a stochastic computing, and it could produce a continuous random bit-stream with tunable probability. Utilizing the stochasticity in few-domain…

新兴技术 · 计算机科学 2023-06-21 Sheng Luo , Yihan He , Baofang Cai , Xiao Gong , Gengchiau Liang

Energy-efficient methods are addressed for leveraging low energy barrier nanomagnetic devices within neuromorphic architectures. Using a Magnetoresistive Random Access Memory (MRAM) probabilistic device (p-bit) as the basis of neuronal…

新兴技术 · 计算机科学 2020-05-06 Hossein Pourmeidani , Punyashloka Debashis , Zhihong Chen , Ronald F. DeMara , Ramtin Zand

Probabilistic bits (p-bits) are stochastic hardware elements whose output probability can be tuned by an input bias, offering a route to energy-efficient architectures that exploit, rather than suppress, fluctuations. Here we report p-bit…

Probabilistic spin logic (PSL) is a recently proposed computing paradigm based on unstable stochastic units called probabilistic bits (p-bits) that can be correlated to form probabilistic circuits (p-circuits). These p-circuits can be used…

新兴技术 · 计算机科学 2018-11-05 Ahmed Zeeshan Pervaiz , Brian M. Sutton , Lakshmi Anirudh Ghantasala , Kerem Y. Camsari

The transistor celebrated its 75${}^\text{th}$ birthday in 2022. The continued scaling of the transistor defined by Moore's Law continues, albeit at a slower pace. Meanwhile, computing demands and energy consumption required by modern…

Molecular docking is a critical computational strategy in drug design and discovery, but the complex diversity of biomolecular structures and flexible binding conformations create an enormous search space that challenges conventional…

Over the decades, the spin dynamics of a large set of lanthanide complexes have been explored. Lanthanide-based molecular nanomagnets are bistable spin systems, generally conceptualized as classical bits, but many lanthanide complexes have…

Probabilistic computing is a novel computing scheme that offers a more efficient approach than conventional CMOS-based logic in a variety of applications ranging from optimization to Bayesian inference, and invertible Boolean logic. The…

介观与纳米尺度物理 · 物理学 2024-06-18 John Daniel , Zheng Sun , Xuejian Zhang , Yuanqiu Tan , Neil Dilley , Zhihong Chen , Joerg Appenzeller

Probabilistic bits (p-bits) have recently been employed in neural networks (NNs) as stochastic neurons with sigmoidal probabilistic activation functions. Nonetheless, there remain a wealth of other probabilistic activation functions that…

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