Mirjam Cvetič

• Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA and Center for Applied Mathematics and Theoretical Physics, University of Maribor, SI2000 Maribor, Slovenia

Zain H. Saleem

• Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA and National Center for Physics, Quaid-i-Azam University, Shahdara Valley Road, Islamabad 44000, Pakistan

Alejandro Satz

• Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA and Institute for Gravitation and the Cosmos & Physics Department, Penn State, University Park, Pennsylvania 16802, USA