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McKelvey School of Engineering

Brown School

Thesis Proposal: Subhankar Bose

Thursday, November 30, 2023 | 1:00 PM - 3:00 PM

Uncas A. Whitaker Hall, Whitaker 220
6760 Forest Park Pkwy, St. Louis, MO 63105, USA

Investigating Randomness in Fowler-Nordheim Quantum Tunneling Devices and Dynamical Systems

Abstract: The physics of Fowler-Nordheim (FN) quantum tunneling provides a mechanism to implement novel, room-temperature quantum dynamical systems on a standard silicon process. Previously, FN quantum devices have been used for self-powered sensing, dynamic storage, timekeeping, synchronization, authentication, and key exchange. All these approaches were based on continuous-time dynamics where each FN device operated independently of each other.  However, at a fundamental level, the dynamics of the FN device represent a counting process where the sequential tunneling of electrons results in discrete changes in the barrier slope (due to finite charge of a single electron) at discrete time-steps. In this talk, we will explore the underlying randomness in the dynamics of a network of single electron FN tunneling devices, the challenges associated with the measurement of single-electron jumps in their on-silicon implementation as well as explore novel applications of such systems.

Event Type



McKelvey School of Engineering


Science & Technology

Electrical & Systems Engineering


Event Contact

Aaron Beagle | abeagle@wustl.edu

Speaker Information

Subhankar Bose

Advisor: Shantanu Chakrabartty

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