How do initial conditions influence the evolution of correlations in a non-equilibrium system?
ORAL
Abstract
A key problem in describing the dynamics of an interacting system starting from initial states with non-trivial connected correlations is that Wick's theorem is no longer valid in this system. We show that Wick's theorem and resultant other structures of interacting field theories can be restored in such a situation for fermions if one considers additional interaction vertices related to the initial correlations. We use this to study how the evolution of one particle correlations in a Hubbard model is affected by initial correlations in the system.
–
Presenters
-
Md Mursalin Islam
Department of Theoretical Physics, Tata Institute of Fundamental Research
Authors
-
Md Mursalin Islam
Department of Theoretical Physics, Tata Institute of Fundamental Research
-
Ahana Chakraborty
Max Planck Institute for Physics of Complex Systems, Max Planck Institute for the Physics of Complex Systems
-
Rajdeep Sensarma
Physics, Tata Institute of Fundamental Research, Department of Theoretical Physics, Tata Institute of Fundamental Research (TIFR), Tata Institute of Fundamental Research (TIFR), Department of Theoretical Physics, Tata Institute of Fundamental Research