Physics talk on 5 Aug 2013: “Electron and phonon transport in nonequilibrium many-body quantum systems with dynamic forces and components” by Dr. Eduardo Cuansing

Speaker:

Dr. Eduardo C. Cuansing Jr.
Department of Physics
Ateneo de Manila University

Date and time:
August 5, 2013 (Monday) at 4:30 pm – 5:30 pm

Venue:
Faura 305
(Coffee and refreshments will be provided)

Abstract:

The electronics industry’s relentless pursuit of ever-smaller electronic gadgets will eventually lead to devices consisting of only a few atoms and molecules. In such ultra-tiny molecular devices, quantum effects that may have been ignored or considered negligible in larger-sized devices can become significant. These quantum effects may even lead to unique behaviour with novel practical applications in quantum computing, information processing, and nano-sized machines. In this talk I will introduce several theoretical quantum devices that could act as dynamic quantum switches and gates, a quantum refrigerator, and a quantum transistor. I will then show how to theoretically calculate the dynamic quantum transport properties of electrons (fermions) and phonons (bosons) in such devices using the time-dependent nonequilibrium Green’s functions approach.

About the speaker:

The speaker received his BS Physics degree from the University of the Philippines, Diliman and his PhD Physics from Purdue University. His undergraduate thesis was on non-Abelian Gauge theories and his doctoral dissertation was on critical phenomena. He did postdoctoral research work at the University of Pittsburgh on the theory of vortices in high-temperature superconductors and at the National University of Singapore on the quantum transport of electrons and phonons. He has recently moved to the Department of Physics, Ateneo de Manila University to spread the joys of doing research and extending the boundaries of knowledge in condensed matter physics and quantum devices.

References:

Cuansing, E.C., Li, H., and Wang, J.-S., Physical Review E 86, 031132 (2012).
Cuansing, E.C. and Liang, G., Journal of Applied Physics 110, 083704 (2011).
Cuansing, E.C. and Wang, J.-S., Physical Review E 82, 021116 (2010).
Cuansing, E.C. and Wang, J.-S., Physical Review B 81, 052302 (2010).

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