{"paper":{"title":"Demonstration of Universal Parametric Entangling Gates on a Multi-Qubit Lattice","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"A. Bestwick, A. Bradley, A. Hudson, A. Papageorge, A. Polloreno, A. Staley, B. Bloom, C. A. Ryan, C. B. Osborn, C. Bui, C. T. Rigetti, D. Girshovich, D. Russell, D. Scarabelli, E. Acala, E. A. Sete, G. Crossman, G. Prawiroatmodjo, J. Angeles, J. Cordova, J. Marshall, J. Otterbach, J.-P. Paquette, K. Kuang, K. Yadav, L. Capelluto, M. Block, M. Curtis, M. Lenihan, M. P. da Silva, M. Pelstring, M. Reagor, M. Rust, M. Scheer, M. Selvanayagam, M. Suska, M. Vahidpour, N. Alidoust, N. Didier, N. Rubin, N. Tezak, N. Vodrahalli, P. Karalekas, R. Chilcott, R. Manenti, R. Renzas, R. Sinclair, R. Smith, S. Caldwell, S. Deshpande, S. Hong, T. El Bouayadi, T. Manning, T. Whyland, T.-W. To, V. Rawat, W. O'Brien, W. Zeng, Y. Mohan","submitted_at":"2017-06-20T17:51:54Z","abstract_excerpt":"We show that parametric coupling techniques can be used to generate selective entangling interactions for multi-qubit processors. By inducing coherent population exchange between adjacent qubits under frequency modulation, we implement a universal gateset for a linear array of four superconducting qubits. An average process fidelity of $\\mathcal{F}=93\\%$ is estimated for three two-qubit gates via quantum process tomography. We establish the suitability of these techniques for computation by preparing a four-qubit maximally entangled state and comparing the estimated state fidelity against the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.06570","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}