Particle jumps in structural glasses.
Particles in structural glasses rattle around temporary equilibrium positions, that seldom change through a process which is much faster than the relaxation time, known as particle jump. Since the relaxation of the system is due to the accumulation of many such jumps, it could be possible to connect the single particle short time motion to the macroscopic relaxation by understanding the features of the jump dynamics. Here we review recent results in this research direction, clarifying the features of particle jumps that have been understood and those that are still under investigation, and examining the role of particle jumps in different theories of the glass transition.
Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore and CNR-SPIN, Dipartimento di Scienze Fisiche, University of Napoli Federico II, Italy. pastore@na.infn.it coniglio@na.infn.it.
Massimo Pica
MP
Ciamarra
CNR-SPIN, Dipartimento di Scienze Fisiche, University of Napoli Federico II, Italy. pastore@na.infn.it coniglio@na.infn.it.
Raffaele
R
Pastore
CNR-SPIN, Dipartimento di Scienze Fisiche, University of Napoli Federico II, Italy. pastore@na.infn.it coniglio@na.infn.it.
Antonio
A
Coniglio