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arXiv · 1703.01209

Perovskite Quantum Organismoids

Fan Zuo·Priyadarshini Panda·Michele Kotiuga·Jiarui Li·Min Gu Kang·Claudio Mazzoli·Hua Zhou·Andi Barbour·Stuart Wilkins·Badri Narayanan·Mathew Cherukara·Zhen Zhang·Subramanian K. R. S. Sankaranarayanan·Riccardo Comin·Karin M. Rabe·Kaushik Roy·Shriram Ramanathan
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Abstract

A central characteristic of living beings is the ability to learn from and respond to their environment leading to habit formation and decision making1-3. This behavior, known as habituation, is universal among forms of life with a central nervous system, and interestingly observed even in single cellular organisms that do not possess a brain4-5. Here, we report the discovery of habituation based plasticity utilizing a perovskite quantum system by dynamical modulation of electron localization via reversible dopant incorporation. Microscopic mechanisms and pathways that enable this organismic collective charge-lattice interaction are elucidated by a combination of first-principles theory, synchrotron investigations, ab-initio dynamical simulations and in-situ environmental breathing studies. We implement a new learning algorithm inspired from the conductance relaxation behavior of perovskites that naturally incorporates habituation and demonstrate "learning to forget": a key feature of animal and human brains6. Most surprisingly, our results show that incorporating this elementary skill in learning dramatically boosts the capability of artificial cognitive systems.

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Fan Zuo, Priyadarshini Panda, Michele Kotiuga, Jiarui Li, Min Gu Kang, Claudio Mazzoli, Hua Zhou, Andi Barbour, Stuart Wilkins, Badri Narayanan, Mathew Cherukara, Zhen Zhang, Subramanian K. R. S. Sankaranarayanan, Riccardo Comin, Karin M. Rabe, Kaushik Roy, Shriram Ramanathan. 2017-03-03. Perovskite Quantum Organismoids. https://arxiv.org/abs/1703.01209

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