Zobrazeno 1 - 10
of 119
pro vyhledávání: '"Lanyon, B. P."'
We entangle each individual matter-qubit in a register of ten to a separate travelling photon. The qubits are encoded in a string of cotrapped atomic ions. By switching the trap confinement, ions are brought one at a time into the waist of an optical
Externí odkaz:
http://arxiv.org/abs/2406.09480
A three-qubit quantum network node based on trapped atomic ions is presented. The ability to establish entanglement between each of the qubits in the node and a separate photon that has travelled over a 101km-long optical fiber is demonstrated. By se
Externí odkaz:
http://arxiv.org/abs/2308.08891
Autor:
Krutyanskiy, V., Galli, M., Krcmarsky, V., Baier, S., Fioretto, D. A., Pu, Y., Mazloom, A., Sekatski, P., Canteri, M., Teller, M., Schupp, J., Bate, J., Meraner, M., Sangouard, N., Lanyon, B. P., Northup, T. E.
Publikováno v:
Phys. Rev. Lett. 130, 050803 (2023)
We report on an elementary quantum network of two atomic ions separated by 230 m. The ions are trapped in different buildings and connected with 520(2) m of optical fiber. At each network node, the electronic state of an ion is entangled with the pol
Externí odkaz:
http://arxiv.org/abs/2208.14907
Autor:
Meraner, M., Mazloom, A., Krutyanskiy, V., Krcmarsky, V., Schupp, J., Fioretto, D., Sekatski, P., Northup, T. E., Sangouard, N., Lanyon, B. P.
Publikováno v:
Phys. Rev. A 102, 052614 (2020)
Trapped atomic ions embedded in optical cavities are a promising platform to enable long-distance quantum networks and their most far-reaching applications. Here we achieve and analyze photon indistinguishability in a telecom-converted ion-cavity sys
Externí odkaz:
http://arxiv.org/abs/1912.09259
Publikováno v:
npj Quantum Information 5, 72 (2019)
When shared between remote locations, entanglement opens up fundamentally new capabilities for science and technology [1, 2]. Envisioned quantum networks distribute entanglement between their remote matter-based quantum nodes, in which it is stored,
Externí odkaz:
http://arxiv.org/abs/1901.06317
Akademický článek
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Publikováno v:
Appl. Phys. B 123, 228 (2017)
We demonstrate polarisation-preserving frequency conversion of single-photon-level light at 854 nm, resonant with a trapped-ion transition and qubit, to the 1550-nm telecom C band. A total photon in / fiber-coupled photon out efficiency of $\sim$ 30
Externí odkaz:
http://arxiv.org/abs/1709.02413
Publikováno v:
Quantum Sci. Technol. 2 045003 (2017)
Performing a faithful transfer of an unknown quantum state is a key challenge for enabling quantum networks. The realization of networks with a small number of quantum links is now actively pursued, which calls for an assessment of different state tr
Externí odkaz:
http://arxiv.org/abs/1704.06233
Autor:
Lanyon, B. P., Maier, C., Holzäpfel, M., Baumgratz, T., Hempel, C., Jurcevic, P., Dhand, I., Buyskikh, A. S., Daley, A. J., Cramer, M., Plenio, M. B., Blatt, R., Roos, C. F.
Publikováno v:
Nature Physics volume 13, pages 1158 1162 (2017)
Quantum state tomography (QST) is the gold standard technique for obtaining an estimate for the state of small quantum systems in the laboratory. Its application to systems with more than a few constituents (e.g. particles) soon becomes impractical a
Externí odkaz:
http://arxiv.org/abs/1612.08000
Autor:
Jurcevic, P., Shen, H., Hauke, P., Maier, C., Brydges, T., Hempel, C., Lanyon, B. P., Heyl, M., Blatt, R., Roos, C. F.
Publikováno v:
Phys. Rev. Lett. 119, 080501 (2017)
Dynamical quantum phase transitions (DQPTs) extend the concept of phase transitions and thus universality to the non-equilibrium regime. In this letter, we investigate DQPTs in a string of ions simulating interacting transverse-field Ising models. We
Externí odkaz:
http://arxiv.org/abs/1612.06902