Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Dial, O."'
Autor:
Zajac, D. M., Stehlik, J., Underwood, D. L., Phung, T., Blair, J., Carnevale, S., Klaus, D., Keefe, G. A., Carniol, A., Kumph, M., Steffen, Matthias, Dial, O. E.
The addition of tunable couplers to superconducting quantum architectures offers significant advantages for scaling compared to fixed coupling approaches. In principle, tunable couplers allow for exact cancellation of qubit-qubit coupling through the
Externí odkaz:
http://arxiv.org/abs/2108.11221
Autor:
Wei, K. X., Magesan, E., Lauer, I., Srinivasan, S., Bogorin, D. F., Carnevale, S., Keefe, G. A., Kim, Y., Klaus, D., Landers, W., Sundaresan, N., Wang, C., Zhang, E. J., Steffen, M., Dial, O. E., McKay, D. C., Kandala, A.
Publikováno v:
Phys. Rev. Lett. 129, 060501 (2022)
Quantum computers built with superconducting artificial atoms already stretch the limits of their classical counterparts. While the lowest energy states of these artificial atoms serve as the qubit basis, the higher levels are responsible for both a
Externí odkaz:
http://arxiv.org/abs/2106.00675
Autor:
Gordon, R. T., Murray, C. E., Kurter, C., Sandberg, M., Hall, S. A., Balakrishnan, K., Shelby, R., Wacaser, B., Stabile, A. A., Sleight, J. W., Brink, M., Rothwell, M. B., Rodbell, K., Dial, O., Steffen, M.
Quantum computing relies on the operation of qubits in an environment as free of noise as possible. This work reports on measuring the impact of environmental radiation on lifetimes of fixed frequency transmon qubits with various capacitor pad geomet
Externí odkaz:
http://arxiv.org/abs/2105.14003
Autor:
Finck, A. D. K., Carnevale, S., Klaus, D., Scerbo, C., Blair, J., McConkey, T. G., Kurter, C., Carniol, A., Keefe, G., Kumph, M., Dial, O. E.
Publikováno v:
Phys. Rev. Applied 16, 054041 (2021)
Fixed-frequency qubits can suffer from always-on interactions that inhibit independent control. Here, we address this issue by experimentally demonstrating a superconducting architecture using qubits that comprise of two capacitively-shunted Josephso
Externí odkaz:
http://arxiv.org/abs/2105.11495
Autor:
Stehlik, J., Zajac, D. M., Underwood, D. L., Phung, T., Blair, J., Carnevale, S., Klaus, D., Keefe, G. A., Carniol, A., Kumph, M., Steffen, Matthias, Dial, O. E.
Publikováno v:
Phys. Rev. Lett. 127, 080505 (2021)
Implementation of high-fidelity two-qubit operations is a key ingredient for scalable quantum error correction. In superconducting qubit architectures tunable buses have been explored as a means to higher fidelity gates. However, these buses introduc
Externí odkaz:
http://arxiv.org/abs/2101.07746
Autor:
Kandala, A., Wei, K. X., Srinivasan, S., Magesan, E., Carnevale, S., Keefe, G. A., Klaus, D., Dial, O., McKay, D. C.
Publikováno v:
Phys. Rev. Lett. 127, 130501 (2021)
Improving two-qubit gate performance and suppressing crosstalk are major, but often competing, challenges to achieving scalable quantum computation. In particular, increasing the coupling to realize faster gates has been intrinsically linked to enhan
Externí odkaz:
http://arxiv.org/abs/2011.07050
Autor:
Paik, Hanhee, Mezzacapo, A., Sandberg, Martin, McClure, D. T., Abdo, B., Corcoles, A. D., Dial, O., Bogorin, D. F., Plourde, B. L. T., Steffen, M., Cross, A. W., Gambetta, J. M., Chow, Jerry M.
Publikováno v:
Phys. Rev. Lett. 117, 250502 (2016)
The resonator-induced phase (RIP) gate is a multi-qubit entangling gate that allows a high degree of flexibility in qubit frequencies, making it attractive for quantum operations in large-scale architectures. We experimentally realize the RIP gate wi
Externí odkaz:
http://arxiv.org/abs/1606.00685
Autor:
Gambetta, J. M., Murray, C. E., Fung, Y. -K. -K., McClure, D. T., Dial, O., Shanks, W., Sleight, J., Steffen, M.
Publikováno v:
IEEE Transactions on Applied Superconductivity 27 (1), 1700205 (2017)
Superconducting qubits are sensitive to a variety of loss mechanisms including dielectric loss from interfaces. By changing the physical footprint of the qubit it is possible to modulate sensitivity to surface loss. Here we show a systematic study of
Externí odkaz:
http://arxiv.org/abs/1605.08009
Publikováno v:
PRL 110, 146804 (2013)
Two level systems that can be reliably controlled and measured hold promise in both metrology and as qubits for quantum information science (QIS). When prepared in a superposition of two states and allowed to evolve freely, the state of the system pr
Externí odkaz:
http://arxiv.org/abs/1208.2023
Calculations of the single particle density of states (SPDOS) of electron liquids have long predicted that there exist two distinct charged excitations: the usual quasiparticle consisting of an electron or hole screened by a correlation hole, and a "
Externí odkaz:
http://arxiv.org/abs/1009.0519