Observation of constructive interference at the edge of quantum ergodicity

Authors and Affiliations

1. Google Research, Mountain View, CA, USA

2. Department of Physics, Princeton University, Princeton, NJ, USA

   Dmitry A. Abanin

3. Department of Chemistry, University of California Berkeley, Berkeley, CA, USA

   Ashok Ajoy, Christian Bengs & Chongwei Zhang

4. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA

   Ashok Ajoy & Christian Bengs

5. CIFAR Azrieli Global Scholars Program, CIFAR, Toronto, Ontario, Canada

   Ashok Ajoy

6. Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA, USA

   Joseph C. Bardin

7. NVIDIA Corporation, Santa Clara, CA, USA

   Saul Cohen, Hanfeng Gu, Ikko Hamamura & Elica Kyoseva

8. Department of Physics, University of California, Santa Barbara, CA, USA

   Michel Devoret

9. Department of Physics, University of Connecticut, Storrs, CT, USA

   Ilya Drozdov

10. Department of Electrical and Computer Engineering, Auburn University, Auburn, AL, USA

    Michael C. Hamilton

11. Institute for Quantum Information and Matter, Caltech, Pasadena, CA, USA

    Robbie King & Thomas Schuster

12. Computational and Mathematical Sciences, Caltech, Pasadena, CA, USA

    Robbie King

13. Department of Chemistry, Harvard University, Cambridge, MA, USA

    Joonho Lee

14. Quantum Artificial Intelligence Laboratory, NASA Ames Research Center, Moffett Field, CA, USA

    Salvatore Mandrà

15. KBR, Houston, TX, USA

    Salvatore Mandrà

16. Department of Computer Science, University of California, Santa Barbara, CA, USA

    Murphy Yuezhen Niu

17. Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA

    William D. Oliver

18. Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA

    William D. Oliver

19. Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA

    William D. Oliver

20. Department of Physics and Astronomy, University of California, Riverside, CA, USA

    Leonid P. Pryadko

21. Department of Physics and Astronomy, Dartmouth College, Hanover, NH, USA

    Chandrasekhar Ramanathan

22. Walter Burke Institute for Theoretical Physics, Caltech, Pasadena, CA, USA

    Thomas Schuster

23. Max Planck Institute for the Physics of Complex Systems, Dresden, Germany

    Philippe Suchsland

Consortia

Contributions

D.A.A., R. Acharya, L.A.-B., G.A., R. Alcaraz, I.A., T.I.A., M.A., F.A., K.A., A. Asfaw, N.A., J.A., R.B., D. Bacon, B. Ballard, J.C.B., A. Bengtsson, A. Bilmes, S.B., G.B., A. Bourassa, J.B., D. Bowers, L.B., M.B., D.A. Browne, B. Buchea, B.B.B., D.A. Buell, T.B., B. Burkett, N.B., A.C., J. Campero, H.-S.C., Y.C., Z.C., B. Chiaro, L.-Y.C., D.C., C.C., J. Cogan, A.Y.C., J. Claes, R.C., P.C., W.C., A.L.C., B. Curtin, S. Das, L.D.L., D.M.D., S. Demura, M.D., A.D.P., P.D., I.D., A.D., C. Earle, A.E., A.M.E., M.E., C. Erickson, L.F., E.

Farhi, V.S.F., L.F.B., E. Forati, A.G.F., B.F., S.G., G.G., R. Gasca, É.G., W.G., C.G., D. Gilboa, R. Gosula, A.G.D., D. Graumann, A.G., J.A.G., S. Heslin, J. Hall, M.C.H., M.H., M.P.H., S.D.H., S. Habegger, P.H., O.H., G.H., J. Hilton, S. Hong, H.-Y.H., A.H., W.J.H., L.B.I., S.V.I., J.I., E.J., Z.J., X.J., C. Jones, S.J., C. Joshi, P.J., A.K., D.K., H.K., A.H.K., K.K., J.K., T. Khaire, T. Khattar, M.K., S.K., R. King, P.V.K., R. Kothari, B.K., A.N.K., F.K., R. Kothari, J.M.K., V.D.K., D.

Landhuis, T.L.-D., B.W.L., P.L., K.-M.L., L.L.G., J. Ledford, J. Lee, K.L., Y.D.L., S.L., B.J.L., W.Y.L., A.T.L., W.L., W.P.L., A. Locharla, E.L., D. Lundahl, A. Lunt, S. Madhuk, F.D.M., A. Maloney, S. Mandrà, J.M.M., L.S.M., O.M., S. Molina, Y.M., C.M., J.R.M., M.M., S. Montazeri, A. Megrant, X.M., K.C.M., A. Mieszala, Z.M., R. Movassagh, S. Meeks, S. Martin, A. Morvan, R. Molavi, W.M., O.N., M. Neeley, C.N., A. Nersisyan, H.N., M. Newman, J.H.N., A. Nguyen, M. Nguyen, C.-H.N., M.Y.N., L.O., T.E.O., W.D.O., A.O., K.O., A. Petukhov, A.

Pizzuto, J.P., R.P., O.P., L.P.P., C.Q., G. Ramachandran, M.J.R., J.R., D.M.R., G. Roberts, E. Rosenberg, E. Rosenfeld, P.R., N.C.R., N. Saei, D. Strain, K.S., K.J.S., A. Shorter, H.F.S., C.S., T.S., M.J.S., A. Szasz, N. Shutty, V. Shvarts, V. Sivak, J. Skruzny, S. Small, V. Smelyanskiy, W.C.S., R.D.S., S. Springer, G.S., D. Sank, J. Suchard, P.S., A. Sztein, A. Schmidhuber, D.T., E.T., A.T., M.M.T., A.V., J.V., S.V., G.V., B.V., C.V.H., S.W., S.X.W., B.W., K. Wong, T. Weidel, T. Westerhout, T. White, K.

Weber, B.W.K.W., C.X., Z.J.Y., P.Y., B.Y., J.Y., N.Y., G.Y., A.Z., Y.Z., N. Zhu and N. Zobrist performed the experiment, developed the theory behind the experiment, analysed the data and built the associated infrastructure supporting the experiment. S.C., H.G., I.H. and E.K. contributed to the classical simulation of OTOCs. A. Ajoy, C.Z., C.B. and C.R. contributed to the formulation of the Hamiltonian learning experiment. All authors participated in writing and revising the paper and Supplementary Information.

Corresponding author

Correspondence to
Hartmut Neven.