1. $4,000
   Probing Quantum Structure in Gravitational Radiation by Sreenath K. Manikandan, Nordita, Stockholm University and KTH Royal Institute of Technology, Stockholm, Sweden; email: sreenath.k.manikandan@su.se and Frank Wilczek, Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; T. D. Lee Institute and Wilczek Quantum Center, Shanghai 200240, China; Arizona State University, Tempe, AZ 85287, USA; Stockholm University, Stockholm, Sweden; email: wilczek@mit.edu.


2. $700
   It Costs Nothing to Teleport Information into a Black Hole by Jonah Kudler-Flam, School of Natural Sciences, Institute for Advanced Study, Princeton, NJ 08540, USA; Princeton Center for Theoretical Science, Princeton University, Princeton, NJ 08544, USA; email: jkudlerflam@ias.edu and Geoff Pennington, Center for Theoretical Physics and Department of Physics, University of California, Berkeley, CA 94720, USA; email: geoffp@berkeley.edu


3. $600
   The Persistence of Non-Linear Gravitational Wave Memory by Robert R. Caldwell, Department of Physics and Astronomy, Dartmouth College, Hanover, NH 03755, USA; email: robert.r.caldwell@dartmouth.edu


4. $500
   Quantum Optics in Curved Spacetime: Surprises and Insights by Marlan O. Scully^1,2,3; email: scully@tamu.edu, Anatoly A. Svidzinsky¹; email: asvid@physics.tamu.edu, and William Unruh^1,4; email: unruh@physics.ubc.ca
   ¹Texas A&M University, College Station, 77843, USA; ²Princeton University, Princeton, NJ 08544, USA; ³Baylor University, Waco, TX 76798, USA; ⁴University of British Columbia, Vancouver, BC, Canada V6T 1Z1


5. $400
   Space Cannot Stretch Too Fast by Samir D. Mathur, Department of Physics, The Ohio State University, Columbus, OH 43210, USA; email: Mathur.16@osu.edu

Selected for Honorable Mention this year were (listed in alphabetical order):

Ronald J. Adler; Stephen L. Adler; Asier Alonso-Bardaji; Ana Alonso-Serrano, Luis J. Garay and Marek Liška; Stefano Antonini and Pratik Rath; Benjamin Avila-Lopez, Richard MacKenzie, Fernando Mendez and M. B. Paranjape; Vijay Balasubramanian and Tom Yildirim; Tom Banks; Ning Bao and Grant N. Remmen; Per Berglund, Andrew Geraci, Tristan Hübsch, David Mattingly and Djordje Minic; Juan Calderón Bustillo, Adrian del Rio, Samson H. W. Leong and Nicolas Sanchis-Gual; Marcelo Botta Cantcheff; Subenoy Chakraborty and Madhukrishna Chakraborty; Indranil Chakraborty, Susmita Jana and S. Shankaranarayanan; Sayantan Choudhury; Christian Corda and Carlo Cafaro; Naresh Dadhich; Shiladittya Debnath; H. P. de Oliveira; Konstantinos Dialektopoulos, Theodoros Papanikolaou and Vasillios Zarikas; Joshua Erlich; Mir Faizal, Lawrence M. Krauss, Arshid Shabir, Francesco Marino and Behnam Pourhassan; Antonia M. Frassino, Robie A. Hennigar, Juan F. Pedraza and Andrew Svesko; Eduardo Guendelman; Wu-Zhong Guo; Ladina Hausmann and Renato Renner; Marc S. Klinger and Robert G. Leigh; Madhur Mehta; Meysam Motaharfar and Parampreet Singh; Y. Jack Ng and Eric Steinbring; Luciano Petruzziello, Trinidad B. Lantan˜o Pinto, Susana F. Huelga and Martin B. Plenio; Fabrizio Pinto; Ioannis Soranidis and Daniel R. Terno; Christos G. Tsagas; Gabriel Wong.