Dynamical breaking of supersymmetry

Various current developments in the field of supersymmetry and its realizat ion around electroweak scale have been reviewed. Using simple quantum mecha nical systems and analyzing the linear realizations of SUSY, the question o f stability of electroweak scale and the relevance of SUSY in view of the n ext generation of colliders in high energy physics is discussed. Analyzing the supersymmetry breaking mechanisms, the role of nonperturbative effects in dynamical breaking of supersymmetry has been investigated which has been shown to lead the dynamical generation of small scales. The dynamical brea king of supersymmetry has been shown to get realized through the fermion pa ir condensation mode in a supersymmetric model without generating any Golds tone fermion.