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Quantum Kinetics and Statistical Mechanics of "Unparticles"

Quantum Kinetics and Statistical Mechanics of "Unparticles"

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Quantum Kinetics and Statistical Mechanics of "Unparticles"
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<strong>Seminar of the School of Physical Sciences</strong> <strong>Title: Quantum Kinetics and Statistical Mechanics of "Unparticles"</strong> <strong>Speaker: Ayan Mukhopadhyay </strong> (Technical University, Vienna) Date: <strong>September 16, 2016 (Friday)</strong> <strong>Abstract: </strong>Our usual constructions of kinetic theory and statistical mechanics are based on weakly interacting particles. In strongly interacting systems such as non-Fermi liquids, experiments such as photoemission data reveals broad resonances with unusual scaling properties -- such excitations are often called "unparticles". We cannot use the Boltzmann equation to describe kinetic theory of such systems. The Fokker-Planck and Langevin equations also do not describe statistical behavior of heavy probes as the paradigm of independent collisions of probes with the "individual atoms" of the media does not apply either. Nevertheless, techniques of quantum field theory such as study of unequal time correlation functions, specially unequal time commutators and anti-commutators of appropriate local operators can lead us to Schwinger-Dyson equations with which we can construct kinetic theory and statistical mechanics of such media even away from equilibrium. In this talk, I will show how such models of kinetic theory and nonequilibrium statistical mechanics can be constructed in a class of strongly correlated systems via the holographic duality, which reduces the problem to calculations in a dual theory of classical gravity living in one higher dimension.

A warm welcome to the modified and updated website of the Centre for East Asian Studies. The East Asian region has been at the forefront of several path-breaking changes since 1970s beginning with the redefining the development architecture with its State-led development model besides emerging as a major region in the global politics and a key hub of the sophisticated technologies. The Centre is one of the thirteen Centres of the School of International Studies, Jawaharlal Nehru University, New Delhi that provides a holistic understanding of the region.

Initially, established as a Centre for Chinese and Japanese Studies, it subsequently grew to include Korean Studies as well. At present there are eight faculty members in the Centre. Several distinguished faculty who have now retired include the late Prof. Gargi Dutt, Prof. P.A.N. Murthy, Prof. G.P. Deshpande, Dr. Nranarayan Das, Prof. R.R. Krishnan and Prof. K.V. Kesavan. Besides, Dr. Madhu Bhalla served at the Centre in Chinese Studies Programme during 1994-2006. In addition, Ms. Kamlesh Jain and Dr. M. M. Kunju served the Centre as the Documentation Officers in Chinese and Japanese Studies respectively.

The academic curriculum covers both modern and contemporary facets of East Asia as each scholar specializes in an area of his/her interest in the region. The integrated course involves two semesters of classes at the M. Phil programme and a dissertation for the M. Phil and a thesis for Ph. D programme respectively. The central objective is to impart an interdisciplinary knowledge and understanding of history, foreign policy, government and politics, society and culture and political economy of the respective areas. Students can explore new and emerging themes such as East Asian regionalism, the evolving East Asian Community, the rise of China, resurgence of Japan and the prospects for reunification of the Korean peninsula. Additionally, the Centre lays great emphasis on the building of language skills. The background of scholars includes mostly from the social science disciplines; History, Political Science, Economics, Sociology, International Relations and language.

Several students of the centre have been recipients of prestigious research fellowships awarded by Japan Foundation, Mombusho (Ministry of Education, Government of Japan), Saburo Okita Memorial Fellowship, Nippon Foundation, Korea Foundation, Nehru Memorial Fellowship, and Fellowship from the Chinese and Taiwanese Governments. Besides, students from Japan receive fellowship from the Indian Council of Cultural Relations.