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Relativistic quantum chaos in Dirac fermion and graphene systems

Speaker: 
Ying-Cheng Lai (Arizona State University, USA & University of Aberdeen, UK)
Date: 
Wed, 26/06/2013 - 11:00am to 12:00pm
Location: 
S13-M01-11 (Physics Conference Room)
Event Type: 
Seminars

Abstract

Quantum chaos is referred to the study of quantum manifestations of systems that are chaotic in the classical limit. Most previous research in the field of quantum chaos focused on the non-relativistic quantum regime. Recently the field of relativistic quantum chaos has emerged, due to the tremendous development of research on graphene. Phenomena such as relativistic quantum scarring, chaotic scattering, and tunneling have been explored. The speaker will discuss a number of fundamental issues in relativistic quantum chaos, but from the perspective of quantum control or modulation: how classical chaos can be exploited to harness relativistic quantum behaviors in Dirac fermion and graphene systems? Transport through quantum dot and resonant tunneling will be used as two prototypical examples to illustrate the principle that chaos-based quantum control can be advantageous and experimentally feasible.

Speaker's Bio: Ying-Cheng Lai is a Professor of Electrical Engineering and Physics at Arizona State University, USA and the Sixth-Century Chair in Electrical Engineering at University of Aberdeen, UK. His research areas are complex systems, quantum chaos, graphene physics, nonlinear dynamics in optomechanical systems, mathematical biology, signal processing and data analysis. His current H-index is 52 and i10-index is 210. He is a frequent visitor to NUS' Physics Department.

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