Nonclassical Effects and Dynamics of Quantum Observables

Introduction.- Revivals, Fractional Revivals and Tomograms.- Tomographic Approach to Squeezing.- Entanglement at Avoided Level Crossings.- Entanglement in time-evolving bipartite systems.- Ergodic properties of expectation values.- Epilogue.

S. Lakshmibala earned her Ph. D. degree in theoretical high energy physics from the University of Madras in 1987 and joined the Department of Physics, IIT Madras, as a postdoctoral fellow. She became a faculty member in 1991 and is currently a professor there. Her research has ranged over particle physics, nonlinear dynamics, and the interface between quantum mechanics and quantum optics. For the past two decades, her research has focused on the general theme of the ergodic properties of the expectation values of observables in quantum mechanical systems, particularly in the context of paradigmatic atom-field interaction models in quantum optics. In addition to significant work in this area, she has also pioneered the application of time series and network analysis to quantum dynamics. She has taught a variety of courses at the undergraduate and graduate levels and has also given an NPTEL-sponsored video course on quantum mechanics (available on YouTube) that has been very well received. Among her current research interests is the tomographic approach to the exploration of entanglement in bipartite and multipartite systems. 

V. Balakrishnan earned his Ph. D. degree in theoretical high energy physics from Brandeis University in 1970. After a decade of research at TIFR (Mumbai) and IGCAR (Kalpakkam), he joined IIT Madras in 1980 as a professor, retired as professor emeritus in 2013, and is currently an adjunct professor there. His research interests have spanned many areas over the years, including particle physics, mechanical behavior of solids, condensed matter physics, random walks and stochastic processes, nonlinear dynamics and chaos, and quantum dynamics, in which he has published numerous research papers and articles. He has made significant contributions to the theory of an elasticity and viscoelasticity, anomalous diffusion and continuous time random walks, first-passage times for random walks on fractals, and