Theoretical Physics

4 March 2014
Time: 15:00 to 16:00
Location: Parkinson SR B.11

Juan Garrahan (Nottingham)

General aspects of classical and quantum glasses

The glass transition is a central open problem in condensed matter science.  It refers to the general phenomenon by which a many-body system falls out of equilibrium into a solid, yet amorphous state.  The classical example is that of liquids which can be supercooled to avoid crystrallisation but which eventually become so slow and viscous that they form the nonequilibrium state of matter we call glass.  The physical ingredients leading to glassy physics are those of a many-body system at high densities and/or low temperatures in the presence of excluded volume or similarly frustrating interaction, and so glassy behaviour is generic, occurring in liquids, colloids, granulars, plastics and many other materials.  I will give a general  overview of the glass transition problem in classical many-body systems, and describe theoretical approaches to the problem.  I will also discuss how these ideas are extended to the quantum regime.

[1] L.O. Hedges, R.L. Jack, J.P. Garrahan and D. Chandler, Science 323, 1309 (2009).
[2] D. Chandler and J.P. Garrahan, Annu. Rev. Phys. Chem. 61, 191 (2010).
[3] G. Biroli and J.P. Garrahan, J. Chem. Phys. 138, 12A301 (2013).
[4] B. Olmos, I. Lesanovsky and J.P. Garrahan, Phys. Rev. Lett. 109, 020403 (2012).
[5] I. Lesanovsky and J.P. Garrahan, Phys. Rev. Lett. 111, 215305 (2013).



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