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About

Nikhil Chopra is a prominent robotics and control systems researcher whose work sits at the intersection of networked robotics, bilateral teleoperation, and multi-robot coordination. He is best known for pioneering passivity-based control frameworks that address one of teleoperation's most persistent challenges: maintaining stability and performance in the presence of communication time delays, data loss, and unreliable networks. His 2008 paper on synchronization of bilateral teleoperators has garnered over 340 citations, while his foundational early work on tracking performance and discrete-time passivity helped establish core theoretical tools still widely used today. Chopra has made significant contributions to extending these frameworks beyond their original limitations — developing adaptive schemes that guarantee steady-state position and force tracking, and generalizing synchronization methods to heterogeneous robotic manipulators operating in task space. His research also spans multi-robot systems, where he has introduced decentralized strategies for maintaining communication graph connectivity during cooperative tasks, work that has collectively earned nearly 350 citations. His 2015 book-level treatment of passivity-based control in networked robotics serves as an authoritative reference in the field. Across more than a decade of influential publications, Chopra has shaped both the theoretical foundations and practical design of modern networked robotic systems.