Zobrazeno 1 - 10
of 551
pro vyhledávání: '"Langford, N"'
Publikováno v:
npj Quantum Information 4, Article number: 38 (2018)
Analog quantum simulations offer rich opportunities for exploring complex quantum systems and phenomena through the use of specially engineered, well-controlled quantum systems. A critical element, increasing the scope and flexibility of such experim
Externí odkaz:
http://arxiv.org/abs/1802.10037
Autor:
Dickel, C., Wesdorp, J. J., Langford, N. K., Peiter, S., Sagastizabal, R., Bruno, A., Criger, B., Motzoi, F., DiCarlo, L.
Publikováno v:
Phys. Rev. B 97, 064508 (2018)
While the on-chip processing power in circuit QED devices is growing rapidly, an open challenge is to establish high-fidelity quantum links between qubits on different chips. Here, we show entanglement between transmon qubits on different cQED chips
Externí odkaz:
http://arxiv.org/abs/1712.06141
Autor:
Luthi, F., Stavenga, T., Enzing, O. W., Bruno, A., Dickel, C., Langford, N. K., Rol, M. A., Jespersen, T. S., Nygard, J., Krogstrup, P., DiCarlo, L.
Publikováno v:
Phys. Rev. Lett. 120, 100502 (2018)
We present an experimental study of nanowire transmons at zero and applied in-plane magnetic field. With Josephson non-linearities provided by the nanowires, our qubits operate at higher magnetic fields than standard transmons. Nanowire transmons exh
Externí odkaz:
http://arxiv.org/abs/1711.07961
Autor:
Langford, N. K., Sagastizabal, R., Kounalakis, M., Dickel, C., Bruno, A., Luthi, F., Thoen, D. J., Endo, A., DiCarlo, L.
Publikováno v:
Nature Communications 8, 1715 (2017)
The quantum Rabi model describing the fundamental interaction between light and matter is a cornerstone of quantum physics. It predicts exotic phenomena like quantum phase transitions and ground-state entanglement in the ultrastrong-coupling (USC) re
Externí odkaz:
http://arxiv.org/abs/1610.10065
Autor:
Asaad, S., Dickel, C., Poletto, S., Bruno, A., Langford, N. K., Rol, M. A., Deurloo, D., DiCarlo, L.
Publikováno v:
npj Quantum Information 2, 16029 (2016)
A critical ingredient for realizing large-scale quantum information processors will be the ability to make economical use of qubit control hardware. We demonstrate an extensible strategy for reusing control hardware on same-frequency transmon qubits
Externí odkaz:
http://arxiv.org/abs/1508.06676
Publikováno v:
Appl. Phys. Lett. 106, 182601 (2015)
We present microwave-frequency NbTiN resonators on silicon, systematically achieving internal quality factors above 1 M in the quantum regime. We use two techniques to reduce losses associated with two-level systems: an additional substrate surface t
Externí odkaz:
http://arxiv.org/abs/1502.04082
Autor:
Nunn, J., Langford, N. K., Kolthammer, W. S., Champion, T. F. M., Sprague, M. R., Michelberger, P. S., Jin, X. -M., England, D. G., Walmsley, I. A.
Publikováno v:
Phys. Rev. Lett. 110 13 133601 (2013)
Single photons are a vital resource for optical quantum information processing. Efficient and deterministic single photon sources do not yet exist, however. To date, experimental demonstrations of quantum processing primitives have been implemented u
Externí odkaz:
http://arxiv.org/abs/1208.1534
Autor:
Reim, K. F., Nunn, J., Jin, X. -M., Michelberger, P. S., Champion, T. F. M., England, D. G., Lee, K. C., Langford, N. K., Walmsley, I. A.
Quantum memories are vital to the scalability of photonic quantum information processing (PQIP), since the storage of photons enables repeat-until-success strategies. On the other hand the key element of all PQIP architectures is the beam splitter, w
Externí odkaz:
http://arxiv.org/abs/1203.2328
Autor:
England, D. G., Michelberger, P. S., Champion, T. F. M., Reim, K. F., Lee, K. C., Sprague, M. R., Jin, X. -M., Langford, N. K., Kolthammer, W. S., Nunn, J., Walmsley, I. A.
We demonstrate a dual-rail optical Raman memory inside a polarization interferometer; this enables us to store polarization-encoded information at GHz bandwidths in a room-temperature atomic ensemble. By performing full process tomography on the syst
Externí odkaz:
http://arxiv.org/abs/1112.0900
Publikováno v:
Nature 478, 360-363 (20 October 2011)
Single photons provide excellent quantum information carriers, but current schemes for preparing, processing and measuring them are inefficient. For example, down-conversion provides heralded, but randomly timed single photons, while linear-optics ga
Externí odkaz:
http://arxiv.org/abs/1106.1992