Zobrazeno 1 - 10
of 633
pro vyhledávání: '"McKay, David P."'
Dynamic circuit operations -- measurements with feedforward -- are important components for future quantum computing efforts, but lag behind gates in the availability of characterization methods. Here we introduce a series of dynamic circuit benchmar
Externí odkaz:
http://arxiv.org/abs/2408.07677
Autor:
Kumph, Muir, Raftery, James, Finck, Aaron, Blair, John, Carniol, April, Carnevale, Santino, Keefe, George A, Arena, Vincent, Hall, Shawn, McKay, David, Stehlik, George
Here, we report the experimental demonstration of a novel multi-mode linear bus interferometer (LBI) coupler in a six qubit superconducting quantum processor. A key feature of this coupler is an engineered multi-path interference which eliminates tra
Externí odkaz:
http://arxiv.org/abs/2406.11770
Autor:
McKay, David C., Hincks, Ian, Pritchett, Emily J., Carroll, Malcolm, Govia, Luke C. G., Merkel, Seth T.
As quantum processors grow, new performance benchmarks are required to capture the full quality of the devices at scale. While quantum volume is an excellent benchmark, it focuses on the highest quality subset of the device and so is unable to indica
Externí odkaz:
http://arxiv.org/abs/2311.05933
Autor:
Wei, Ken Xuan, Lauer, Isaac, Pritchett, Emily, Shanks, William, McKay, David C., Javadi-Abhari, Ali
Publikováno v:
PRX Quantum 5, 020338 2024
Fixed-frequency superconducting qubits demonstrate remarkable success as platforms for stable and scalable quantum computing. Cross-resonance gates have been the workhorse of fixed-coupling, fixed-frequency superconducting processors, leveraging the
Externí odkaz:
http://arxiv.org/abs/2310.12146
Qutrit state readout is an important technology not only for execution of qutrit algorithms but also for erasure detection in error correction circuits and leakage error characterization of the gate set. Conventional technique using a specialized IQ
Externí odkaz:
http://arxiv.org/abs/2309.11303
Autor:
Amico, Mirko, Zhang, Helena, Jurcevic, Petar, Bishop, Lev S., Nation, Paul, Wack, Andrew, McKay, David C.
As quantum computers grow in size and scope, a question of great importance is how best to benchmark performance. Here we define a set of characteristics that any benchmark should follow -- randomized, well-defined, holistic, device independent -- an
Externí odkaz:
http://arxiv.org/abs/2303.02108
Publikováno v:
Phys. Rev. Applied 21, 024018 (2024)
As quantum gates improve, it becomes increasingly difficult to characterize the remaining errors. Here we describe a class of coherent non-Markovian errors -- excitations due to an off-resonant drive -- that occur naturally in quantum devices that us
Externí odkaz:
http://arxiv.org/abs/2302.10881
Autor:
Ang, James, Carini, Gabriella, Chen, Yanzhu, Chuang, Isaac, DeMarco, Michael Austin, Economou, Sophia E., Eickbusch, Alec, Faraon, Andrei, Fu, Kai-Mei, Girvin, Steven M., Hatridge, Michael, Houck, Andrew, Hilaire, Paul, Krsulich, Kevin, Li, Ang, Liu, Chenxu, Liu, Yuan, Martonosi, Margaret, McKay, David C., Misewich, James, Ritter, Mark, Schoelkopf, Robert J., Stein, Samuel A., Sussman, Sara, Tang, Hong X., Tang, Wei, Tomesh, Teague, Tubman, Norm M., Wang, Chen, Wiebe, Nathan, Yao, Yong-Xin, Yost, Dillon C., Zhou, Yiyu
Many proposals to scale quantum technology rely on modular or distributed designs where individual quantum processors, called nodes, are linked together to form one large multinode quantum computer (MNQC). One scalable method to construct an MNQC is
Externí odkaz:
http://arxiv.org/abs/2212.06167
Publikováno v:
Phys. Rev. A 104, 042603 (2021)
We provide and experimentally demonstrate an accreditation protocol that upper-bounds the variation distance between noisy and noiseless probability distributions of the outputs of arbitrary quantum computations. We accredit the outputs of twenty-fou
Externí odkaz:
http://arxiv.org/abs/2103.06603
Autor:
Garion, Shelly, Kanazawa, Naoki, Landa, Haggai, McKay, David C., Sheldon, Sarah, Cross, Andrew W., Wood, Christopher J.
Publikováno v:
Phys. Rev. Research 3, 013204 (2021)
Hardware efficient transpilation of quantum circuits to a quantum devices native gateset is essential for the execution of quantum algorithms on noisy quantum computers. Typical quantum devices utilize a gateset with a single two-qubit Clifford entan
Externí odkaz:
http://arxiv.org/abs/2007.08532