Distinguished Professor of Physics, University of California, San Diego

Professor of Physics, University of Maryland

Vanguard University

King's College London

Universidade Federal do Espírito Santo

COMSATS University Islamabad, Lahore Campus

Departamento de Física, UFCG

Professor of Physics, Koc University, Istanbul

Professor of Physics. Universidad de Zaragoza

Centre for Strings, Gravitation and Cosmology, Department of Physics, Indian Institute of …