Noise-resilient Edge Modes on a Chain of Superconducting Qubits
Creators: name: Mi, Xiao
name: Sonner, Michael
name: Niu, Murphy Yuezhen
name: Lee, Kenneth W.
name: Foxen, Brooks
name: Acharya, Rajeev
name: Aleiner, Igor
name: Andersen, Trond I.
name: Arute, Frank
name: Arya, Kunal
name: Asfaw, Abraham
name: Atalaya, Juan
name: Babbush, Ryan
name: Bacon, Dave
name: Bardin, Joseph C.
name: Basso, Joao
name: Bengtsson, Andreas
name: Bortoli, Gina
name: Bourassa, Alexandre
name: Brill, Leon
name: Broughton, Michael
name: Buckley, Bob B.
name: Buell, David A.
name: Burkett, Brian
name: Bushnell, Nicholas
name: Chen, Zijun
name: Chiaro, Benjamin
name: Collins, Roberto
name: Conner, Paul
name: Courtney, William
name: Crook, Alexander L.
name: Debroy, Dripto M.
name: Demura, Sean
name: Dunsworth, Andrew
name: Eppens, Daniel
name: Erickson, Catherine
name: Faoro, Lara
name: Farhi, Edward
name: Fatemi, Reza
name: Flores, Leslie
name: Forati, Ebrahim
name: Fowler, Austin G.
name: Giang, William
name: Gidney, Craig
name: Gilboa, Dar
name: Giustina, Marissa
name: Dau, Alejandro Grajales
name: Gross, Jonathan A.
name: Habegger, Steve
name: Harrigan, Matthew P.
name: Hilton, Jeremy
name: Hoffmann, Markus
name: Hong, Sabrina
name: Huang, Trent
name: Huff, Ashley
name: Huggins, William J.
name: Ioffe, Lev B.
name: Isakov, Sergei V.
name: Iveland, Justin
name: Jeffrey, Evan
name: Jiang, Zhang
name: Jones, Cody
name: Kafri, Dvir
name: Kechedzhi, Kostyantyn
name: Khattar, Tanuj
name: Kim, Seon
name: Kitaev, Alexei
name: Klimov, Paul V.
name: Klots, Andrey R.
name: Korotkov, Alexander N.
name: Kostritsa, Fedor
name: Kreikebaum, J. M.
name: Landhuis, David
name: Laptev, Pavel
name: Lau, Kim-Ming
name: Lee, Joonho
name: Laws, Lily
name: Liu, Wayne
name: Locharla, Aditya
name: Lucero, Erik
name: Martin, Orion
name: McClean, Jarrod R.
name: McEwen, Matt
name: Costa, Bernardo Meurer
name: Miao, Kevin C.
name: Mohseni, Masoud
name: Montazeri, Shirin
name: Morvan, Alexis
name: Mount, Emily
name: Mruczkiewicz, Wojciech
name: Naaman, Ofer
name: Neeley, Matthew
name: Neill, Charles
name: Newman, Michael
name: O'Brien, Thomas E.
name: Opremcak, Alex
name: Petukhov, Andre
name: Potter, Rebecca
name: Quintana, Chris
name: Rubin, Nicholas C.
name: Saei, Negar
name: Sank, Daniel
name: Sankaragomathi, Kannan
name: Satzinger, Kevin J.
name: Schuster, Christopher
name: Shearn, Michael J.
name: Shvarts, Vladimir
name: Strain, Doug
name: Su, Yuan
name: Szalay, Marco
name: Vidal, Guifre
name: Villalonga, Benjamin
name: Vollgraff-Heidweiller, Catherine
name: White, Theodore
name: Yao, Z. Jamie
name: Yeh, Ping
name: Yoo, Juhwan
name: Zalcman, Adam
name: Zhang, Yaxing
name: Zhu, Ningfeng
name: Neven, Hartmut
name: Boixo, Sergio
name: Megrant, Anthony
name: Chen, Yu
name: Kelly, Julian
name: Smelyanskiy, Vadim
name: Abanin, Dmitry A.
name: Roushan, Pedram
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: Inherent symmetry of a quantum system may protect its otherwise fragile states. Leveraging such protection requires testing its robustness against uncontrolled environmental interactions. Using 47 superconducting qubits, we implement the one-dimensional kicked Ising model which exhibits non-local Majorana edge modes (MEMs) with $\mathbb{Z}_2$ parity symmetry. Remarkably, we find that any multi-qubit Pauli operator overlapping with the MEMs exhibits a uniform late-time decay rate comparable to single-qubit relaxation rates, irrespective of its size or composition. This characteristic allows us to accurately reconstruct the exponentially localized spatial profiles of the MEMs. Furthermore, the MEMs are found to be resilient against certain symmetry-breaking noise owing to a prethermalization mechanism. Our work elucidates the complex interplay between noise and symmetry-protected edge modes in a solid-state environment.