Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Mary-Beth Rothwell"'
Autor:
Eric J. Zhang, Srikanth Srinivasan, Neereja Sundaresan, Daniela F. Bogorin, Yves Martin, Jared B. Hertzberg, John Timmerwilke, Emily J. Pritchett, Jeng-Bang Yau, Cindy Wang, William Landers, Eric P. Lewandowski, Adinath Narasgond, Sami Rosenblatt, George A. Keefe, Isaac Lauer, Mary Beth Rothwell, Douglas T. McClure, Oliver E. Dial, Jason S. Orcutt, Markus Brink, Jerry M. Chow
Publikováno v:
Science Advances. 8
Scaling the number of qubits while maintaining high-fidelity quantum gates remains a key challenge for quantum computing. Presently, superconducting quantum processors with >50 qubits are actively available. For these systems, fixed-frequency transmo
Autor:
Neereja Sundaresan, Giacomo Nannicini, Daniela F. Bogorin, Petar Jurcevic, Adinath Narasgond, Oliver Dial, Emily J. Pritchett, Jay M. Gambetta, K. X. Wei, Christopher J. Wood, Toshinari Itoko, Eric J. Zhang, Markus Brink, Hasan M. Nayfeh, Ali Javadi-Abhari, Oktay Günlük, Kevin Krsulich, Srikanth Srinivasan, Isaac Lauer, William F. Landers, Jeng-Bang Yau, Eric P. Lewandowski, Naoki Kanazawa, George A. Keefe, Abhinav Kandala, Mary Beth Rothwell, Lev S. Bishop, Douglas McClure, Lauren Capelluto, Jerry M. Chow, Cindy Wang
We improve the quality of quantum circuits on superconducting quantum computing systems, as measured by the quantum volume, with a combination of dynamical decoupling, compiler optimizations, shorter two-qubit gates, and excited state promoted readou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f86eed5c93d420a7ba39254b449133f
Autor:
Niyaz Khusnatdinov, Dwayne L. LaBrake, E. Sikorski, R. S. Shenoy, Cynthia B. Brooks, Ying Zhang, Kailash Gopalakrishnan, Arnie Ford, Gerard M. Schmid, Douglas J. Resnick, Ron Jih, Jordan Owens, Mary Beth Rothwell, Mark W. Hart
Publikováno v:
Microelectronic Engineering. 85:856-860
Optical lithography has been successful in achieving deep sub-wavelength images by the continuous improvement of lens systems, resists and the introduction of phase shift masks. One of the key challenges in attempting to pattern feature sizes less th
Autor:
Oliver Dial, Matthias Steffen, Jay M. Gambetta, Stefano Poletto, David W. Abraham, Douglas McClure, Mary Beth Rothwell, Jerry M. Chow, G. A. Keefe
Decoherence of superconducting transmon qubits is purported to be consistent with surface loss from two-level systems on the substrate surface. Here, we present a study of surface loss in transmon devices, explicitly designed to have varying sensitiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ceae1f6a772f125e6a64bb5bf3f8bafc
Autor:
Sampath Purushothaman, Steven E. Steen, Lidija Sekaric, John M. Hergenrother, J. Patel, Inna V. Babich, James P. Doyle, Mary Beth Rothwell, Michael J. Rooks, Jim R. Brancaccio, Roy Yu, Ron Nunes, J.J. Bucchignano, Anna W. Topol, R. Viswanathan, David M. Fried, Sharee J. McNab
Publikováno v:
Microelectronic Engineering. 83:754-761
Moore's law continues to prescribe ever smaller device dimensions with each new device node. While the new device nodes are scheduled at even pace, the innovation required to obtain commensurate device performance is greater with every device node. T
Autor:
Michael R. Vissers, Jerry M. Chow, George A. Keefe, David W. Abraham, Jiansong Gao, Jay M. Gambetta, Matthias Steffen, Mary Beth Rothwell, Martin Sandberg, David P. Pappas, Antonio Corcoles, Josephine B. Chang
We demonstrate enhanced relaxation and dephasing times of transmon qubits, up to ~ 60 \mu s by fabricating the interdigitated shunting capacitors using titanium nitride (TiN). Compared to lift-off aluminum deposited simultaneously with the Josephson
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef19cf1d609c3df093dd542757e8383f
Autor:
Seth Merkel, Jay M. Gambetta, J. R. Rozen, David W. Abraham, John A. Smolin, Antonio Corcoles, Mary Beth Rothwell, Matthias Steffen, George A. Keefe, Chad Rigetti, Stefano Poletto, Jerry M. Chow
Publikováno v:
Physical review letters. 109(24)
We report a system where fixed interactions between non-computational levels make bright the otherwise forbidden two-photon 00 --> 11 transition. The system is formed by hand selection and assembly of two discrete component transmon-style superconduc
Autor:
Jay M. Gambetta, Antonio Corcoles, John A. Smolin, Mary Beth Rothwell, J. R. Rozen, Stefano Poletto, Seth Merkel, Mark B. Ketchen, Matthias Steffen, George A. Keefe, Chad Rigetti, Jerry M. Chow
Publikováno v:
Physical review letters. 109(6)
We use quantum process tomography to characterize a full universal set of all-microwave gates on two superconducting single-frequency single-junction transmon qubits. All extracted gate fidelities, including those for Clifford group generators, singl
Autor:
Jerry M. Chow, John A. Smolin, Mary Beth Rothwell, George A. Keefe, Chad Rigetti, Antonio Corcoles, Seth Merkel, Mark B. Ketchen, Britton Plourde, Jay M. Gambetta, J. R. Rozen, Stefano Poletto, Matthias Steffen
We report a superconducting artificial atom with a coherence time of ${T}_{2}^{*}=92$ $\ensuremath{\mu}$s and energy relaxation time ${T}_{1}=70$ $\ensuremath{\mu}$s. The system consists of a single Josephson junction transmon qubit on a sapphire sub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4ad191b9eb5cee0e61d7961632a4f9a
http://arxiv.org/abs/1202.5533
http://arxiv.org/abs/1202.5533
Autor:
J. R. Rozen, Matthias Steffen, John A. Smolin, Jay M. Gambetta, Mary Beth Rothwell, Antonio Corcoles, Mark B. Ketchen, George A. Keefe, Blake R. Johnson, Chad Rigetti, Jerry M. Chow
Publikováno v:
Physical Review Letters. 107
We demonstrate an all-microwave two-qubit gate on superconducting qubits which are fixed in frequency at optimal bias points. The gate requires no additional subcircuitry and is tunable via the amplitude of microwave irradiation on one qubit at the t