1. Mani L. Bhaumik Institute for Theoretical Physics, Department of Physics and Astronomy, University of California at Los Angeles
2. Department of Applied Mathematics & Theoretical Physics, University of Cambridge, United Kingdom; and Centre for Research in String Theory, School of Physics, Queen Mary University of London, United Kingdom
3. Laboratoire de Physique Théorique et Hautes Énergies, Sorbonne Université and CNRS, Paris, France