Zobrazeno 1 - 10
of 268
pro vyhledávání: '"Itoh, K. M."'
Autor:
Evans, T. J., Huang, W., Yoneda, J., Harper, R., Tanttu, T., Chan, K. W., Hudson, F. E., Itoh, K. M., Saraiva, A., Yang, C. H., Dzurak, A. S., Bartlett, S. D.
Publikováno v:
Phys. Rev. Applied 17, 024068 (2022)
Benchmarking and characterising quantum states and logic gates is essential in the development of devices for quantum computing. We introduce a Bayesian approach to self-consistent process tomography, called fast Bayesian tomography (FBT), and experi
Externí odkaz:
http://arxiv.org/abs/2107.14473
Autor:
Liles, S. D., Martins, F., Miserev, D. S., Kiselev, A. A., Thorvaldson, I. D., Rendell, M. J., Jin, I. K., Hudson, F. E., Veldhorst, M., Itoh, K. M., Sushkov, O. P., Ladd, T. D., Dzurak, A. S., Hamilton, A. R.
Single holes confined in semiconductor quantum dots are a promising platform for spin qubit technology, due to the electrical tunability of the $g$-factor of holes. However, the underlying mechanisms that enable electric spin control remain unclear d
Externí odkaz:
http://arxiv.org/abs/2012.04985
Autor:
Yoneda, J., Huang, W., Feng, M., Yang, C. H., Chan, K. W., Tanttu, T., Gilbert, W., Leon, R. C. C., Hudson, F. E., Itoh, K. M., Morello, A., Bartlett, S. D., Laucht, A., Saraiva, A., Dzurak, A. S.
Publikováno v:
Nature Communications 12, 4114 (2021)
A fault-tolerant quantum processor may be configured using stationary qubits interacting only with their nearest neighbours, but at the cost of significant overheads in physical qubits per logical qubit. Such overheads could be reduced by coherently
Externí odkaz:
http://arxiv.org/abs/2008.04020
Autor:
Yang, C. H., Leon, R. C. C., Hwang, J. C. C., Saraiva, A., Tanttu, T., Huang, W., Lemyre, J. Camirand, Chan, K. W., Tan, K. Y., Hudson, F. E., Itoh, K. M., Morello, A., Pioro-Ladrière, M., Laucht, A., Dzurak, A. S.
Publikováno v:
Nature 580, 350-354 (2020)
Quantum computers are expected to outperform conventional computers for a range of important problems, from molecular simulation to search algorithms, once they can be scaled up to large numbers of quantum bits (qubits), typically millions. For most
Externí odkaz:
http://arxiv.org/abs/1902.09126
Autor:
Leon, R. C. C., Yang, C. H., Hwang, J. C. C., Lemyre, J. Camirand, Tanttu, T., Huang, W., Chan, K. W., Tan, K. Y., Hudson, F. E., Itoh, K. M., Morello, A., Laucht, A., Pioro-Ladriere, M., Saraiva, A., Dzurak, A. S.
Publikováno v:
Nature Communications 11, 797 (2020)
Once the periodic properties of elements were unveiled, chemical bonds could be understood in terms of the valence of atoms. Ideally, this rationale would extend to quantum dots, often termed artificial atoms, and quantum computation could be perform
Externí odkaz:
http://arxiv.org/abs/1902.01550
Autor:
Zhao, R., Tanttu, T., Tan, K. Y., Hensen, B., Chan, K. W., Hwang, J. C. C., Leon, R. C. C., Yang, C. H., Gilbert, W., Hudson, F. E., Itoh, K. M., Kiselev, A. A., Ladd, T. D., Morello, A., Laucht, A., Dzurak, A. S.
Publikováno v:
Nat Commun 10, 5500 (2019)
Single-electron spin qubits employ magnetic fields on the order of 1 Tesla or above to enable quantum state readout via spin-dependent-tunnelling. This requires demanding microwave engineering for coherent spin resonance control and significant on-ch
Externí odkaz:
http://arxiv.org/abs/1812.08347
Autor:
Takeda, K., Yoneda, J., Otsuka, T., Nakajima, T., Delbecq, M. R., Allison, G., Hoshi, Y., Usami, N., Itoh, K. M., Oda, S., Kodera, T., Tarucha, S.
Publikováno v:
npj Quantum Information (2018) 4:54
Electron spins confined in quantum dots are an attractive system to realize high-fidelity qubits owing to their long coherence time. With the prolonged spin coherence time, however, the control fidelity can be limited by systematic errors rather than
Externí odkaz:
http://arxiv.org/abs/1810.12040
Autor:
Yang, C. H., Chan, K. W., Harper, R., Huang, W., Evans, T., Hwang, J. C. C., Hensen, B., Laucht, A., Tanttu, T., Hudson, F. E., Flammia, S. T., Itoh, K. M., Morello, A., Bartlett, S. D., Dzurak, A. S.
Publikováno v:
Nature Electronics 2, 151-158 (2019)
The performance requirements for fault-tolerant quantum computing are very stringent. Qubits must be manipulated, coupled, and measured with error rates well below 1%. For semiconductor implementations, silicon quantum dot spin qubits have demonstrat
Externí odkaz:
http://arxiv.org/abs/1807.09500
Autor:
Petersen, Evan S., Tyryshkin, A. M., Itoh, K. M., Ager, Joel W., Riemann, H., Abrosimov, N. V., Becker, P., Pohl, H. -J., Thewalt, M. L. W., Lyon, S. A.
We demonstrate that CPMG and XYXY decoupling sequences with non-ideal $\pi$ pulses can reduce dipolar interactions between spins of the same species in solids. Our simulations of pulsed electron spin resonance (ESR) experiments show that $\pi$ rotati
Externí odkaz:
http://arxiv.org/abs/1807.04908
Three-dimensional localization spectroscopy of individual nuclear spins with sub-Angstrom resolution
Publikováno v:
Nature Communications 9, 4678 (2018)
We report on precise localization spectroscopy experiments of individual 13C nuclear spins near a central electronic sensor spin in a diamond chip. By detecting the nuclear free precession signals in rapidly switchable external magnetic fields, we re
Externí odkaz:
http://arxiv.org/abs/1806.04883