Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Colombe, Y."'
Autor:
Auchter, S., Axline, C., Decaroli, C., Valentini, M., Purwin, L., Oswald, R., Matt, R., Aschauer, E., Colombe, Y., Holz, P., Monz, T., Blatt, R., Schindler, P., Rössler, C., Home, J.
Scaling trapped-ion quantum computing will require robust trapping of at least hundreds of ions over long periods, while increasing the complexity and functionality of the trap itself. Symmetric 3D structures enable high trap depth, but microfabricat
Externí odkaz:
http://arxiv.org/abs/2202.08244
Publikováno v:
Appl. Phys. Lett. 119, 024003 (2021)
We present an optical scheme to detect the oscillations of a two-ion string confined in a linear Paul trap. The motion is detected by analyzing the intensity correlations in the fluorescence light emitted by one or two ions in the string. We present
Externí odkaz:
http://arxiv.org/abs/2104.07447
Publikováno v:
Phys. Rev. Lett. 127, 063603 (2021)
We demonstrate an optical method for detecting the mechanical oscillations of an atom with single-phonon sensitivity. The measurement signal results from the interference between the light scattered by a single trapped atomic ion and that of its mirr
Externí odkaz:
http://arxiv.org/abs/2009.14098
Autor:
Lakhmanskiy, K., Holz, P. C., Schärtl, D., Ames, B., Assouly, R., Monz, T., Colombe, Y., Blatt, R.
Publikováno v:
Phys. Rev. A 99, 023405 (2019)
Measuring and understanding electric field noise from bulk material and surfaces is important for many areas of physics. In this work, we introduce a method to detect in situ different sources of electric field noise using a single trapped ion as a s
Externí odkaz:
http://arxiv.org/abs/1805.00793
Autor:
McKay, K. S., Hite, D. A., Colombe, Y., Jördens, R., Wilson, A. C., Slichter, D. H., Allcock, D. T. C., Leibfried, D., Wineland, D. J., Pappas, D. P.
We describe an ex-situ surface-cleaning procedure that is shown to reduce motional heating from ion-trap electrodes. This precleaning treatment, to be implemented immediately before the final assembly and vacuum processing of ion traps, removes surfa
Externí odkaz:
http://arxiv.org/abs/1406.1778
Autor:
Warring, U., Ospelkaus, C., Colombe, Y., Brown, K. R., Amini, J. M., Carsjens, M., Leibfried, D., Wineland, D. J.
Publikováno v:
Phys. Rev. A 87, 013437 (2013)
Microwave near-field quantum control of spin and motional degrees of freedom of 25Mg+ ions can be used to generate two-ion entanglement, as recently demonstrated in Ospelkaus et al. [Nature 476, 181 (2011)]. Here, we describe additional details of th
Externí odkaz:
http://arxiv.org/abs/1211.6554
Publikováno v:
Phys. Rev. Lett. 110, 173002 (2013)
Individual-qubit addressing is a prerequisite for many instances of quantum information processing. We demonstrate this capability on trapped-ion qubits with microwave near-fields delivered by electrode structures integrated into a microfabricated su
Externí odkaz:
http://arxiv.org/abs/1210.6407
Autor:
Hite, D. A., Colombe, Y., Wilson, A. C., Brown, K. R., Warring, U., Jördens, R., Jost, J. D., Pappas, D. P., Leibfried, D., Wineland, D. J.
Publikováno v:
Phys. Rev. Lett. 109, 103001 (2012)
Anomalous heating of trapped atomic ions is a major obstacle to their use as quantum bits in a scalable quantum computer. The physical origin of this heating is not fully understood, but experimental evidence suggests that it is caused by electric-fi
Externí odkaz:
http://arxiv.org/abs/1112.5419
Autor:
Ospelkaus, C., Warring, U., Colombe, Y., Brown, K. R., Amini, J. M., Leibfried, D., Wineland, D. J.
Publikováno v:
Nature 476, 181 (2011)
Control over physical systems at the quantum level is a goal shared by scientists in fields as diverse as metrology, information processing, simulation and chemistry. For trapped atomic ions, the quantized motional and internal degrees of freedom can
Externí odkaz:
http://arxiv.org/abs/1104.3573
Autor:
Brown, K. R., Wilson, A. C., Colombe, Y., Ospelkaus, C., Meier, A. M., Knill, E., Leibfried, D., Wineland, D. J.
Publikováno v:
Physical Review A 84, 030303(R) (2011)
With a 9Be+ trapped-ion hyperfine-states qubit, we demonstrate an error probability per randomized single-qubit gate of 2.0(2) x 10^-5, below the threshold estimate of 10^-4 commonly considered sufficient for fault-tolerant quantum computing. The 9Be
Externí odkaz:
http://arxiv.org/abs/1104.2552