Department of Physics, Panjab University, Chandigarh, India

TPSC seminar

Time and date: 5 October 2012 (Friday), 11:00 am
Venue: Seminar Hall

Title: Solitons in nonlinear Dirac equation

Speaker: Prof. Avinash Khare, IISER, Pune

Abstract: I shall show that there are soliton solutions in nonlinear Dirac equation with arbitrary nonlinearity for both scalar-scalar and vector-vector interactions. I shall further discuss the properties of these soliton solutions and also show that in the nonrelativistic limit, these models go over to generalised nonlinear Schrodinger equation plus correction terms. I will discuss in some details the question of the stability of these soliton solutions. Finally, I shall briefly discuss the soliton solutions in these models in the presence of external fields.