Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Hensinger, W. K."'
Hyperfine energy levels in trapped ions offer long-lived spin states. In addition, the motion of these charged particles couples strongly to external electric field perturbations. These characteristics make trapped ions attractive platforms for the q
Externí odkaz:
http://arxiv.org/abs/2406.08424
Autor:
Akhtar, M., Bonus, F., Lebrun-Gallagher, F. R., Johnson, N. I., Siegele-Brown, M., Hong, S., Hile, S. J., Kulmiya, S. A., Weidt, S., Hensinger, W. K.
System scalability is fundamental for large-scale quantum computers (QCs) and is being pursued over a variety of hardware platforms. For QCs based on trapped ions, architectures such as the quantum charge-coupled device (QCCD) are used to scale the n
Externí odkaz:
http://arxiv.org/abs/2203.14062
We propose a $\sigma_z\otimes \sigma_z$ laser-free entangling gate which uses the intrinsic J-coupling of ions in a static magnetic gradient. Dephasing of the interaction is suppressed by means of continuous dynamical decoupling using pairs of microw
Externí odkaz:
http://arxiv.org/abs/2107.05980
Autor:
Webb, A. E., Webster, S. C., Collingbourne, S., Bretaud, D., Lawrence, A. M., Weidt, S., Mintert, F., Hensinger, W. K.
Publikováno v:
Phys. Rev. Lett. 121, 180501 (2018)
Constructing a large scale ion trap quantum processor will require entangling gate operations that are robust in the presence of noise and experimental imperfection. We experimentally demonstrate how a new type of M{\o}lmer-S{\o}rensen gate protects
Externí odkaz:
http://arxiv.org/abs/1805.07351
Publikováno v:
Phys. Rev. A 98, 043414 (2018)
In recent decades there has been a rapid development of methods to experimentally control individual quantum systems. A broad range of quantum control methods has been developed for two-level systems, however the complexity of multi-level quantum sys
Externí odkaz:
http://arxiv.org/abs/1708.02634
Autor:
Weidt, S., Randall, J., Webster, S. C., Lake, K., Webb, A. E., Cohen, I., Navickas, T., Lekitsch, B., Retzker, A., Hensinger, W. K.
Publikováno v:
Phys. Rev. Lett. 117, 220501 (2016)
Trapped ions are a promising tool for building a large-scale quantum computer. However, the number of required radiation fields for the realisation of quantum gates in any proposed ion-based architecture scales with the number of ions within the quan
Externí odkaz:
http://arxiv.org/abs/1603.03384
Autor:
De Motte, D., Grounds, A. R., Rehák, M., Blanco, A. Rodriguez, Lekitsch, B., Giri, G. S., Neilinger, P., Oelsner, G., Il'ichev, E., Grajcar, M., Hensinger, W. K.
We present a design for the experimental integration of ion trapping and superconducting qubit systems as a step towards the realization of a quantum hybrid system. The scheme addresses two key difficulties in realizing such a system; a combined micr
Externí odkaz:
http://arxiv.org/abs/1510.07298
Atomic-scale logic and the minimization of heating (dissipation) are both very high on the agenda for future computation hardware. An approach to achieve these would be to replace networks of transistors directly by classical reversible logic gates b
Externí odkaz:
http://arxiv.org/abs/1509.03420
Autor:
Lekitsch, B., Weidt, S., Fowler, A. G., Mølmer, K., Devitt, S. J., Wunderlich, C., Hensinger, W. K.
Publikováno v:
Science Advances Vol. 3, no. 2 (2017)
The availability of a universal quantum computer will have fundamental impact on a vast number of research fields and society as a whole. An increasingly large scientific and industrial community is working towards the realization of such a device. A
Externí odkaz:
http://arxiv.org/abs/1508.00420
Autor:
Weidt, S., Randall, J., Webster, S. C., Standing, E. D., Rodriguez, A., Webb, A. E., Lekitsch, B., Hensinger, W. K.
Publikováno v:
Phys. Rev. Lett. 115, 013002 (2015)
We demonstrate ground-state cooling of a trapped ion using radio-frequency (RF) radiation. This is a powerful tool for the implementation of quantum operations, where RF or microwave radiation instead of lasers is used for motional quantum state engi
Externí odkaz:
http://arxiv.org/abs/1501.01562