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Io-Chun Hoi
Researcher at University of California, Santa Barbara
Publications - 45
Citations - 3628
Io-Chun Hoi is an academic researcher from University of California, Santa Barbara. The author has contributed to research in topics: Qubit & Photon. The author has an hindex of 23, co-authored 41 publications receiving 3096 citations. Previous affiliations of Io-Chun Hoi include National Tsing Hua University & Chalmers University of Technology.
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Journal ArticleDOI
State preservation by repetitive error detection in a superconducting quantum circuit
Julian Kelly,Rami Barends,Austin G. Fowler,A. Megrant,Evan Jeffrey,Ted White,Daniel Sank,Josh Mutus,Brooks Campbell,Yu Chen,Zijun Chen,Benjamin Chiaro,Andrew Dunsworth,Io-Chun Hoi,Charles Neill,Peter O'Malley,Chris Quintana,Pedram Roushan,Amit Vainsencher,James Wenner,Andrew Cleland,John M. Martinis +21 more
TL;DR: The protection of classical states from environmental bit-flip errors is reported and the suppression of these errors with increasing system size is demonstrated, motivating further research into the many challenges associated with building a large-scale superconducting quantum computer.
Journal ArticleDOI
Demonstration of a Single-Photon Router in the Microwave Regime
TL;DR: This work embedded an artificial atom, a superconducting transmon qubit, in an open transmission line and investigated the strong scattering of incident microwave photons, using two-tone spectroscopy to study scattering from excited states and electromagnetically induced transparency (EIT).
Journal ArticleDOI
Digital quantum simulation of fermionic models with a superconducting circuit.
Rami Barends,Lucas Lamata,Julian Kelly,Julian Kelly,L. García-Álvarez,Austin G. Fowler,A. Megrant,Evan Jeffrey,Ted White,Daniel Sank,Josh Mutus,Brooks Campbell,Yu Chen,Zijun Chen,Benjamin Chiaro,Andrew Dunsworth,Io-Chun Hoi,Charles Neill,Peter O'Malley,Chris Quintana,Pedram Roushan,Amit Vainsencher,James Wenner,Enrique Solano,Enrique Solano,John M. Martinis,John M. Martinis +26 more
TL;DR: Digital methods are used to construct the required arbitrary interactions, and perform quantum simulation of up to four fermionic modes with a superconducting quantum circuit, and reach fidelities that are consistent with a simple model of uncorrelated errors.
Journal ArticleDOI
Optimal Quantum Control Using Randomized Benchmarking
Julian Kelly,Rami Barends,Brooks Campbell,Yu Chen,Zijun Chen,Benjamin Chiaro,Andrew Dunsworth,Austin G. Fowler,Austin G. Fowler,Io-Chun Hoi,Evan Jeffrey,A. Megrant,Josh Mutus,Charles Neill,Peter O'Malley,Chris Quintana,Pedram Roushan,Daniel Sank,Amit Vainsencher,James Wenner,Ted White,Andrew Cleland,John M. Martinis +22 more
TL;DR: This method is able to correct parameters so that control errors no longer dominate and is suitable for automated and closed-loop optimization of experimental systems.
Journal ArticleDOI
Giant cross-Kerr effect for propagating microwaves induced by an artificial atom.
Io-Chun Hoi,Anton Frisk Kockum,Tauno Palomaki,Thomas M. Stace,Bixuan Fan,Lars Tornberg,Sankar Raman Sathyamoorthy,Göran Johansson,Per Delsing,Christopher Wilson,Christopher Wilson +10 more
TL;DR: The effective interaction between two microwave fields, mediated by a transmon-type superconducting artificial atom which is strongly coupled to a coplanar transmission line, is investigated, producing an effective cross-Kerr coupling.