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Seminar
Speaker
Urbashi Satpathi (International Centre for Theoretical Science - TIFR, Bangalore)
Date & Time
Mon, 07 September 2020, 10:00 to 11:30
Venue
Online seminar
Resources
Abstract

Complicated structures of original dynamics can conceal interesting features of nonlinear hydrodynamics. They also hide underlying universality in systems either of Hamiltonian or non-Hamiltonian form. Therefore, a mapping (effective theory) to chiral PDEs can be of paramount importance in several ways some of which are below:

(i) Gives a sense of universality in seemingly different types of models.

(ii) Makes more transparent the fingerprints of hydrodynamics, such as nonlinearity, dissipation and dispersion.

(iii) Helps in potential physical realizations of well-known chiral PDEs (and their extensions). 

(iv) Facilitates the engineering of systems and preparation of optimal initial conditions for stable propagation.

We present an effective chiral theory using perturbation techniques emphasizing the role of the Fredholm alternative, for the original dynamics for both Hamiltonian (multi-component Nonlinear Schrodinger Equation) and non-Hamiltonian (exciton-polariton condensate) systems. We give a detailed comparison (via extensive numerical simulations) between the original dynamics and the chiral reduction.

Please click on the link https://zoom.us/j/94455401960?pwd=Rm9SZC9kV2RJK0M3L2Y1anFPTnU0UT09 to Join the Zoom Meeting
Meeting ID: 944 5540 1960
Passcode: qjWMh9