Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Luke C. G. Govia"'
Publikováno v:
npj Quantum Information, Vol 6, Iss 1, Pp 1-12 (2020)
Abstract Quantum key distribution (QKD) allows for secure communications safe against attacks by quantum computers. QKD protocols are performed by sending a sizeable, but finite, number of quantum signals between the distant parties involved. Many QK
Externí odkaz:
https://doaj.org/article/a41e6c0a09584004aa3c2559bb104c77
Autor:
Kin Chung Fong, Luke C. G. Govia, Takashi Taniguchi, Thomas A. Ohki, Matthew Ware, James Hone, Kenji Watanabe, Guilhem Ribeill, Anjaly Rajendran, Martin V. Gustafsson, Abhinandan Antony
Publikováno v:
Nano Letters. 21:10122-10126
Quantum computers can potentially achieve an exponential speedup versus classical computers on certain computational tasks, as recently demonstrated in systems of superconducting qubits. However, these qubits have large footprints due to their large
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ada1c4da368d6f4ee249f0e938e33b41
https://doi.org/10.1021/acs.nanolett.1c04160
https://doi.org/10.1021/acs.nanolett.1c04160
Publikováno v:
Physical Review A. 106
We develop a time-dependent Schrieffer-Wolff-Lindblad perturbation theory to study effective interactions for driven open quantum systems. The starting point of our analysis is a given Lindblad equation, based on which we obtain an effective (average
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ec41d24685fc84e2a6c67dfadac8310
https://doi.org/10.1103/physreva.106.052601
https://doi.org/10.1103/physreva.106.052601
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Nature Communications
Nature Communications
Quantum process tomography has become increasingly critical as the need grows for robust verification and validation of candidate quantum processors, since it plays a key role in both performance assessment and debugging. However, as these processors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71f15e7ac615c9ee6b50ac8734f6a0d5
https://doaj.org/article/04158d734a05489c9f7057b405121fd3
https://doaj.org/article/04158d734a05489c9f7057b405121fd3
Autor:
Luke C G Govia, Aashish A Clerk
Publikováno v:
New Journal of Physics, Vol 19, Iss 2, p 023044 (2017)
We introduce and analyze a dispersive qubit readout scheme where two-mode squeezing is generated directly in the measurement cavities. The resulting suppression of noise enables fast, high-fidelity readout of naturally weakly coupled qubits, and the
Externí odkaz:
https://doaj.org/article/8ec3d81a741b41e6ad207185718339e3
Autor:
Luke C. G. Govia, Matthew Nguyen, Thomas A. Ohki, Graham E. Rowlands, Daniel J. Gauthier, Wendson A. S. Barbosa, Aaron Griffith, Guilhem Ribeill
Publikováno v:
Physical review. E. 104(4-2)
We demonstrate that matching the symmetry properties of a reservoir computer (RC) to the data being processed dramatically increases its processing power. We apply our method to the parity task, a challenging benchmark problem that highlights inversi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe5af1e38a1f363b69c55b5a57013042
https://pubmed.ncbi.nlm.nih.gov/34781436
https://pubmed.ncbi.nlm.nih.gov/34781436
Publikováno v:
epl 133(5), 50003-(2021). doi:10.1209/0295-5075/133/50003
Quantum walks have been shown to have a wide range of applications, from artificial intelligence, to photosynthesis, and quantum transport. Quantum stochastic walks (QSWs) generalize this concept to additional non-unitary evolution. In this paper, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::674c244fb7890d8500237df9aa62e2bc
https://juser.fz-juelich.de/record/905685
https://juser.fz-juelich.de/record/905685
Publikováno v:
Physical Review Letters. 125
Spin-spin interactions generated by a detuned cavity are a standard mechanism for generating highly entangled spin squeezed states. We show here how introducing a weak detuned parametric (two-photon) drive on the cavity provides a powerful means for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b4cc0466584f0d1f4600c891888ec0d
https://doi.org/10.1103/physrevlett.125.203601
https://doi.org/10.1103/physrevlett.125.203601
Autor:
Markus Brink, Brian Donovan, Diego Ristè, William D. Kalfus, Nicholas T. Bronn, Spencer D. Fallek, Thomas A. Ohki, Luke C. G. Govia
Publikováno v:
npj Quantum Information, Vol 6, Iss 1, Pp 1-6 (2020)
Although qubit coherence times and gate fidelities are continuously improving, logical encoding is essential to achieve fault tolerance in quantum computing. In most encoding schemes, correcting or tracking errors throughout the computation is necess
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e904dbacf88f0de8ff6eec68f94fbc4b
https://doi.org/10.1038/s41534-020-00304-y
https://doi.org/10.1038/s41534-020-00304-y
Performing efficient quantum computer tuneup and calibration is essential for growth in system complexity. In this work we explore the link between facilitating such capabilities and the underlying architecture of the physical hardware. We focus on t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d3524cdd9d6b58470ec080e5e4efd1f
http://arxiv.org/abs/2004.13059
http://arxiv.org/abs/2004.13059