Dr. Uma Divakaran, Center for Excellence in Basic Sciences, Mumbai University Campus.
Event Date:
Wednesday, 20 January 2016 - 4:00pm to 5:00pm
Title: Non-equilibrium dynamics in Quantum Phase Transitions Abstract: Quantum phase transitions or zero temperature phase transitions
are phase transitions which are driven by quantum fluctuations rather than
thermal fluctuations in the conventional phase transitions. After
introducing the concept of equilibrium properties of a quantum phase
transition using the prototypical model-Transverse Ising Model, we shall
delve into the non-equilibrium dynamics generated as a result of sudden
change to the Hamiltonian, called sudden quench. A semi-classical theory of
quasi particles generated shall be used to understand the evolution of
various quantities after a sudden quench. Some recent results on this topic
will be presented.
Venue:
Departmental Library, Physics Department (second floor)
IIT Bombay, Powai, Mumbai