Authors
Jesse C Hoke, Matteo Ippoliti, Dmitry Abanin, Rajeev Acharya, Markus Ansmann, Frank Arute, Kunal Arya, Abraham Asfaw, Juan Atalaya, Joseph C Bardin, Andreas Bengtsson, Gina Bortoli, Alexandre Bourassa, Jenna Bovaird, Leon Brill, Michael Broughton, Bob B Buckley, David A Buell, Tim Burger, Brian Burkett, Nicholas Bushnell, Zijun Chen, Ben Chiaro, Desmond Chik, Charina Chou, Josh Cogan, Roberto Collins, Paul Conner, William Courtney, Alexander L Crook, Ben Curtin, Alejandro Grajales Dau, Dripto M Debroy, Alexander Del Toro Barba, Sean Demura, Augustin Di Paolo, Ilya K Drozdov, Andrew Dunsworth, Daniel Eppens, Catherine Erickson, Lara Faoro, Edward Farhi, Reza Fatem, Vinicius S Ferreira, Leslie Flores Burgos, Ebrahim Forati, Austin G Fowler, Brooks Foxen, William Giang, Craig Gidney, Dar Gilboa, Marissa Giustina, Raja Gosula, Jonathan A Gross, Steve Habegger, Michael C Hamilton, Monica Hansen, Matthew P Harrigan, Sean D Harrington, Paula Heu, Markus R Hoffmann, Sabrina Hong, Trent Huang, Ashley Huff, William J Huggins, Sergei V Isakov, Justin Iveland, Evan Jeffr, Cody Jones, Pavol Juhas, Dvir Kafri, Kostyantyn Kechedzhi, Tanuj Khattar, Mostafa Khezri, Mária Kieferová, Seon Kim, Alexei Kitaev, Paul V Klimov, Andrey R Klots, Alexander N Korotkov, Fedor Kostritsa, John Mark Kreikebaum, David Landhuis, Pavel Laptev, Kim-Ming Lau, Lily Laws, Joonho Lee, Kenny W Lee, Yuri D Lensky, Brian J Lester, Alexander T Lill, Wayne Liu, Aditya Locharla, Fionn D Malone, Orion Martin, Jarrod R McClean, Trevor McCourt, Matt McEwen, Kevin C Miao, Amanda Mieszala, Shirin Montazeri, Alexis Morvan, Ramis Movassagh, Wojciech Mruczkiewicz, Matthew Neeley, Charles Neill, Ani Nersisyan, Michael Newman, Jiun H Ng, Anthony Nguyen, Murray Nguyen, Murphy Yuezhen Niu, Tom E O'Brien, Seun Omonije, Alex Opremcak, Andre Petukhov, Rebecca Potter, Leonid P Pryadko, Chris Quintana, Charles Rocque, Nicholas C Rubin, Negar Saei Daniel Sank, Kannan Sankaragomathi, Kevin J Satzinger, Henry F Schurkus, Christopher Schuster, Michael J Shearn, Aaron Shorter, Noah Shutty, Vlad Shvarts, Jindra Skruzny, W Clarke Smith, Rolando D Sterling, Douglas Strain, Marco Szalay, Alfredo Torres, Guifre Vidal, Benjamin Villalonga, Catherine Vollgraff Heidweiller, Ted White, Bryan WK Woo, Cheng Xing, Z Jamie Yao, Ping Yeh, Juhwan Yoo, Grayson Young, Adam Zalcman, Yaxing Zhang, Ningfeng Zhu, Nicholas Zobrist
Publication date
2023/3/8
Journal
arXiv preprint arXiv:2303.04792
Description
Measurement has a special role in quantum theory: by collapsing the wavefunction it can enable phenomena such as teleportation and thereby alter the "arrow of time" that constrains unitary evolution. When integrated in many-body dynamics, measurements can lead to emergent patterns of quantum information in space-time that go beyond established paradigms for characterizing phases, either in or out of equilibrium. On present-day NISQ processors, the experimental realization of this physics is challenging due to noise, hardware limitations, and the stochastic nature of quantum measurement. Here we address each of these experimental challenges and investigate measurement-induced quantum information phases on up to 70 superconducting qubits. By leveraging the interchangeability of space and time, we use a duality mapping, to avoid mid-circuit measurement and access different manifestations of the underlying phases -- from entanglement scaling to measurement-induced teleportation -- in a unified way. We obtain finite-size signatures of a phase transition with a decoding protocol that correlates the experimental measurement record with classical simulation data. The phases display sharply different sensitivity to noise, which we exploit to turn an inherent hardware limitation into a useful diagnostic. Our work demonstrates an approach to realize measurement-induced physics at scales that are at the limits of current NISQ processors.
Total citations
Scholar articles
JC Hoke, M Ippoliti, D Abanin, R Acharya, M Ansmann… - arXiv preprint arXiv:2303.04792, 2023