Zobrazeno 1 - 10
of 1 932
pro vyhledávání: '"McConnell R"'
Publikováno v:
npj Quantum Information 5, 102 (2019)
We demonstrate key multi-qubit quantum logic primitives in a dual-species trapped-ion system based on $^{40}$Ca+ and $^{88}$Sr+ ions, using two optical qubits with quantum-logic-control frequencies in the red to near-infrared range. With all ionizati
Externí odkaz:
http://arxiv.org/abs/1905.13122
Autor:
Stuart, J., Panock, R., Bruzewicz, C. D., Sedlacek, J. A., McConnell, R., Chuang, I. L., Sage, J. M., Chiaverini, J.
Publikováno v:
Phys. Rev. Applied 11, 024010 (2019)
Trapped-ion quantum information processors offer many advantages for achieving high-fidelity operations on a large number of qubits, but current experiments require bulky external equipment for classical and quantum control of many ions. We demonstra
Externí odkaz:
http://arxiv.org/abs/1810.07152
Autor:
Sedlacek, J. A., Stuart, J., Slichter, D. H., Bruzewicz, C. D., McConnell, R., Sage, J. M., Chiaverini, J.
Publikováno v:
Phys. Rev. A 98, 063430 (2018)
Electric-field noise from ion-trap electrode surfaces can limit the fidelity of multiqubit entangling operations in trapped-ion quantum information processors and can give rise to systematic errors in trapped-ion optical clocks. The underlying mechan
Externí odkaz:
http://arxiv.org/abs/1809.07761
Autor:
Sedlacek, J. A., Stuart, J., Loh, W., McConnell, R., Bruzewicz, C. D., Sage, J. M., Chiaverini, J.
Microfabricated Paul ion traps show tremendous promise for large-scale quantum information processing. However, motional heating of ions can have a detrimental effect on the fidelity of quantum logic operations in miniaturized, scalable designs. In m
Externí odkaz:
http://arxiv.org/abs/1805.09491
Autor:
Sedlacek, J. A., Greene, A., Stuart, J., McConnell, R., Bruzewicz, C. D., Sage, J. M., Chiaverini, J.
Publikováno v:
Phys. Rev. A 97, 020302 (2018)
We investigate anomalous ion-motional heating, a limitation to multi-qubit quantum-logic gate fidelity in trapped-ion systems, as a function of ion-electrode separation. Using a multi-zone surface-electrode trap in which ions can be held at five disc
Externí odkaz:
http://arxiv.org/abs/1712.00188
We describe rapid, random-access loading of a two-dimensional (2D) surface-electrode ion-trap array based on two crossed photo-ionization laser beams. With the use of a continuous flux of pre-cooled neutral atoms from a remotely-located source, we ac
Externí odkaz:
http://arxiv.org/abs/1511.03293
Autor:
Gabrielse, G., Kalra, R., Kolthammer, W. S., McConnell, R., Richerme, P., Grzonka, D., Oelert, W., Sefzick, T., Zielinski, M., Fitzakerley, D. W., George, M. C., Hessels, E. A., Storry, C. H., Weel, M., Müllers, A., Walz, J.
Publikováno v:
Phys. Rev. Lett. 108, 113002 (2012)
Antihydrogen atoms are confined in an Ioffe trap for 15 to 1000 seconds -- long enough to ensure that they reach their ground state. Though reproducibility challenges remain in making large numbers of cold antiprotons and positrons interact, 5 +/- 1
Externí odkaz:
http://arxiv.org/abs/1201.2717