title: Magnetic Tunnel Junction Mimics Stochastic Cortical Spiking Neurons.
abstract: Brain-inspired computing architectures attempt to mimic the computations performed in the neurons and the synapses in the human brain in order to achieve its efficiency in learning and cognitive tasks. In this work, we demonstrate the mapping of the probabilistic spiking nature of pyramidal neurons in the cortex to the stochastic switching behavior of a Magnetic Tunnel Junction in presence of thermal noise. We present results to illustrate the efficiency of neuromorphic systems based on such probabilistic neurons for pattern recognition tasks in presence of lateral inhibition and homeostasis. Such stochastic MTJ neurons can also potentially provide a direct mapping to the probabilistic computing elements in Belief Networks for performing regenerative tasks.
authors.affiliation: Purdue University, School of Electrical &Computer Engineering, West Lafayette IN 47907, USA.
authors.forename: Abhronil
authors.initials: A
authors.lastname: Sengupta
authors.affiliation: Purdue University, School of Electrical &Computer Engineering, West Lafayette IN 47907, USA.
authors.forename: Priyadarshini
authors.initials: P
authors.lastname: Panda
authors.affiliation: Purdue University, School of Electrical &Computer Engineering, West Lafayette IN 47907, USA.
authors.forename: Parami
authors.initials: P
authors.lastname: Wijesinghe
authors.affiliation: Purdue University, School of Electrical &Computer Engineering, West Lafayette IN 47907, USA.
authors.forename: Yusung
authors.initials: Y
authors.lastname: Kim
authors.affiliation: Purdue University, School of Electrical &Computer Engineering, West Lafayette IN 47907, USA.
authors.forename: Kaushik
authors.initials: K
authors.lastname: Roy