Noise-resilient edge modes on a chain of superconducting qubits.

Autor: Mi X; Google Research, Mountain View, CA, USA., Sonner M; Department of Theoretical Physics, University of Geneva, Geneva, Switzerland., Niu MY; Google Research, Mountain View, CA, USA., Lee KW; Google Research, Mountain View, CA, USA., Foxen B; Google Research, Mountain View, CA, USA., Acharya R; Google Research, Mountain View, CA, USA., Aleiner I; Google Research, Mountain View, CA, USA., Andersen TI; Google Research, Mountain View, CA, USA., Arute F; Google Research, Mountain View, CA, USA., Arya K; Google Research, Mountain View, CA, USA., Asfaw A; Google Research, Mountain View, CA, USA., Atalaya J; Google Research, Mountain View, CA, USA., Bardin JC; Google Research, Mountain View, CA, USA.; Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA, USA., Basso J; Google Research, Mountain View, CA, USA., Bengtsson A; Google Research, Mountain View, CA, USA., Bortoli G; Google Research, Mountain View, CA, USA., Bourassa A; Google Research, Mountain View, CA, USA., Brill L; Google Research, Mountain View, CA, USA., Broughton M; Google Research, Mountain View, CA, USA., Buckley BB; Google Research, Mountain View, CA, USA., Buell DA; Google Research, Mountain View, CA, USA., Burkett B; Google Research, Mountain View, CA, USA., Bushnell N; Google Research, Mountain View, CA, USA., Chen Z; Google Research, Mountain View, CA, USA., Chiaro B; Google Research, Mountain View, CA, USA., Collins R; Google Research, Mountain View, CA, USA., Conner P; Google Research, Mountain View, CA, USA., Courtney W; Google Research, Mountain View, CA, USA., Crook AL; Google Research, Mountain View, CA, USA., Debroy DM; Google Research, Mountain View, CA, USA., Demura S; Google Research, Mountain View, CA, USA., Dunsworth A; Google Research, Mountain View, CA, USA., Eppens D; Google Research, Mountain View, CA, USA., Erickson C; Google Research, Mountain View, CA, USA., Faoro L; Google Research, Mountain View, CA, USA., Farhi E; Google Research, Mountain View, CA, USA., Fatemi R; Google Research, Mountain View, CA, USA., Flores L; Google Research, Mountain View, CA, USA., Forati E; Google Research, Mountain View, CA, USA., Fowler AG; Google Research, Mountain View, CA, USA., Giang W; Google Research, Mountain View, CA, USA., Gidney C; Google Research, Mountain View, CA, USA., Gilboa D; Google Research, Mountain View, CA, USA., Giustina M; Google Research, Mountain View, CA, USA., Dau AG; Google Research, Mountain View, CA, USA., Gross JA; Google Research, Mountain View, CA, USA., Habegger S; Google Research, Mountain View, CA, USA., Harrigan MP; Google Research, Mountain View, CA, USA., Hoffmann M; Google Research, Mountain View, CA, USA., Hong S; Google Research, Mountain View, CA, USA., Huang T; Google Research, Mountain View, CA, USA., Huff A; Google Research, Mountain View, CA, USA., Huggins WJ; Google Research, Mountain View, CA, USA., Ioffe LB; Google Research, Mountain View, CA, USA., Isakov SV; Google Research, Mountain View, CA, USA., Iveland J; Google Research, Mountain View, CA, USA., Jeffrey E; Google Research, Mountain View, CA, USA., Jiang Z; Google Research, Mountain View, CA, USA., Jones C; Google Research, Mountain View, CA, USA., Kafri D; Google Research, Mountain View, CA, USA., Kechedzhi K; Google Research, Mountain View, CA, USA., Khattar T; Google Research, Mountain View, CA, USA., Kim S; Google Research, Mountain View, CA, USA., Kitaev AY; Google Research, Mountain View, CA, USA.; Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, CA, USA., Klimov PV; Google Research, Mountain View, CA, USA., Klots AR; Google Research, Mountain View, CA, USA., Korotkov AN; Google Research, Mountain View, CA, USA.; Department of Electrical and Computer Engineering, University of California, Riverside, CA, USA., Kostritsa F; Google Research, Mountain View, CA, USA., Kreikebaum JM; Google Research, Mountain View, CA, USA., Landhuis D; Google Research, Mountain View, CA, USA., Laptev P; Google Research, Mountain View, CA, USA., Lau KM; Google Research, Mountain View, CA, USA., Lee J; Google Research, Mountain View, CA, USA., Laws L; Google Research, Mountain View, CA, USA., Liu W; Google Research, Mountain View, CA, USA., Locharla A; Google Research, Mountain View, CA, USA., Martin O; Google Research, Mountain View, CA, USA., McClean JR; Google Research, Mountain View, CA, USA., McEwen M; Google Research, Mountain View, CA, USA.; Department of Physics, University of California, Santa Barbara, CA, USA., Meurer Costa B; Google Research, Mountain View, CA, USA., Miao KC; Google Research, Mountain View, CA, USA., Mohseni M; Google Research, Mountain View, CA, USA., Montazeri S; Google Research, Mountain View, CA, USA., Morvan A; Google Research, Mountain View, CA, USA., Mount E; Google Research, Mountain View, CA, USA., Mruczkiewicz W; Google Research, Mountain View, CA, USA., Naaman O; Google Research, Mountain View, CA, USA., Neeley M; Google Research, Mountain View, CA, USA., Neill C; Google Research, Mountain View, CA, USA., Newman M; Google Research, Mountain View, CA, USA., O'Brien TE; Google Research, Mountain View, CA, USA., Opremcak A; Google Research, Mountain View, CA, USA., Petukhov A; Google Research, Mountain View, CA, USA., Potter R; Google Research, Mountain View, CA, USA., Quintana C; Google Research, Mountain View, CA, USA., Rubin NC; Google Research, Mountain View, CA, USA., Saei N; Google Research, Mountain View, CA, USA., Sank D; Google Research, Mountain View, CA, USA., Sankaragomathi K; Google Research, Mountain View, CA, USA., Satzinger KJ; Google Research, Mountain View, CA, USA., Schuster C; Google Research, Mountain View, CA, USA., Shearn MJ; Google Research, Mountain View, CA, USA., Shvarts V; Google Research, Mountain View, CA, USA., Strain D; Google Research, Mountain View, CA, USA., Su Y; Google Research, Mountain View, CA, USA., Szalay M; Google Research, Mountain View, CA, USA., Vidal G; Google Research, Mountain View, CA, USA., Villalonga B; Google Research, Mountain View, CA, USA., Vollgraff-Heidweiller C; Google Research, Mountain View, CA, USA., White T; Google Research, Mountain View, CA, USA., Yao Z; Google Research, Mountain View, CA, USA., Yeh P; Google Research, Mountain View, CA, USA., Yoo J; Google Research, Mountain View, CA, USA., Zalcman A; Google Research, Mountain View, CA, USA., Zhang Y; Google Research, Mountain View, CA, USA., Zhu N; Google Research, Mountain View, CA, USA., Neven H; Google Research, Mountain View, CA, USA., Bacon D; Google Research, Mountain View, CA, USA., Hilton J; Google Research, Mountain View, CA, USA., Lucero E; Google Research, Mountain View, CA, USA., Babbush R; Google Research, Mountain View, CA, USA., Boixo S; Google Research, Mountain View, CA, USA., Megrant A; Google Research, Mountain View, CA, USA., Chen Y; Google Research, Mountain View, CA, USA., Kelly J; Google Research, Mountain View, CA, USA., Smelyanskiy V; Google Research, Mountain View, CA, USA., Abanin DA; Google Research, Mountain View, CA, USA.; Department of Theoretical Physics, University of Geneva, Geneva, Switzerland., Roushan P; Google Research, Mountain View, CA, USA.
Jazyk: angličtina
Zdroj: Science (New York, N.Y.) [Science] 2022 Nov 18; Vol. 378 (6621), pp. 785-790. Date of Electronic Publication: 2022 Nov 17.
DOI: 10.1126/science.abq5769
Abstrakt: 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 nonlocal Majorana edge modes (MEMs) with [Formula: see text] parity symmetry. We find that any multiqubit 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.
Databáze: MEDLINE
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