Zobrazeno 1 - 10
of 288
pro vyhledávání: '"W, Hänsel"'
Publikováno v:
Applied Physics B
We present a method to measure potentials over an extended region using one-dimensional ion crystals in a radio frequency (RF) ion trap. The equilibrium spacings of the ions within the crystal allow the determination of the external forces acting at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80fb399b6973a00a55d839635b9fbf32
https://doi.org/10.1007/s00340-012-5032-7
https://doi.org/10.1007/s00340-012-5032-7
Autor:
W. Hänsel
Publikováno v:
Physik in unserer Zeit. 37:272-280
40Ca-Ionen in Ionenfallen bieten als Quantenbits (Qubits) eine gute Basis fur Quantencomputer. Sie konnen Zahlen binar kodieren. Zudem erlauben sie alle uberlagerten Quantenzustande, die ein Quantencomputer braucht. Mit nur zwei Grundoperationen lass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51e486c57e8a475d2c2774644fdc4c8c
https://doi.org/10.1002/piuz.200601111
https://doi.org/10.1002/piuz.200601111
Autor:
W. Hänsel
Publikováno v:
Physik in unserer Zeit. 37:64-72
Ein Ion bildet in einer Ionenfalle ein quantenmechanisches Zwei-Niveau-System: ein Quantenbit. Mit Laserlicht lassen sich zwei oder mehr 40Ca+-Ionen in der Falle so praparieren, dass sie miteinander verschrankte Quantenbits bilden. Mit diesen Qubits
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8bd1c96aa855e9e2d2dffca30f68c96
https://doi.org/10.1002/piuz.200501093
https://doi.org/10.1002/piuz.200501093
Autor:
Christoph Becher, J. Benhelm, W. Hänsel, Umakant D. Rapol, Hartmut Häffner, Rainer Blatt, T. Körber, Piet O. Schmidt, Wolfgang Dür, M. Riebe, Christian F. Roos, M. Chwalla, D. Chek-Al-Kar, Otfried Gühne
Publikováno v:
Nature. 438:643-646
The generation, manipulation and fundamental understanding of entanglement lies at the very heart of quantum mechanics. Entangled particles are non-interacting but are described by a common wavefunction; consequently, individual particles are not ind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41d3e4efb3eef4b49df96cb23821f3ef
https://doi.org/10.1038/nature04279
https://doi.org/10.1038/nature04279
Publikováno v:
Physical Review Letters. 86:608-611
We demonstrate an integrated magnetic device which transports cold atoms near a surface with very high positioning accuracy. Time-dependent currents in a lithographic conductor pattern create a moving chain of potential wells; atoms are transported i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11abcc19aae6b06733fc7fef8511deb8
https://doi.org/10.1103/physrevlett.86.608
https://doi.org/10.1103/physrevlett.86.608
Publikováno v:
Physical Review Letters. 83:3398-3401
We describe manipulation of neutral atoms using the magnetic field of microfabricated current-carrying conductors. It is shown how this method can be used to achieve adiabatic magnetic transport from one reservoir to another. In the first experimenta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6db062a0a9527b15dcc166be4734af0e
https://doi.org/10.1103/physrevlett.83.3398
https://doi.org/10.1103/physrevlett.83.3398
Autor:
Christian F. Roos, W. Hänsel, Christoph Becher, Rainer Blatt, M. Riebe, Hartmut Häffner, J. Benhelm, M. Chwalla, T. Körber, Umakant D. Rapol, Ferdinand Schmidt-Kaler
Publikováno v:
Applied Physics B. 81:151-153
It is common belief among physicists that entangled states of quantum systems loose their coherence rather quickly. The reason is that any interaction with the environment which distinguishes between the entangled sub-systems collapses the quantum st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca7f85e1306a832fe2f8da980fe87ef3
https://doi.org/10.1007/s00340-005-1917-z
https://doi.org/10.1007/s00340-005-1917-z
Autor:
Hartmut Häffner, Ferdinand Schmidt-Kaler, G.P.T. Lancaster, Rainer Blatt, Christian F. Roos, M. Riebe, W. Hänsel, Christoph Becher, J. Benhelm
Publikováno v:
Science. 304:1478-1480
We report the deterministic creation of maximally entangled three-qubit states—specifically the Greenberger-Horne-Zeilinger (GHZ) state and the W state—with a trapped-ion quantum computer. We read out one of the qubits selectively and show how GH
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcd98d40f1ac45e7ddb0f83b42695fad
https://doi.org/10.1126/science.1097522
https://doi.org/10.1126/science.1097522
Autor:
William A. Coish, Maximilian Harlander, Philipp Schindler, Markus Hennrich, Daniel Nigg, Julio T. Barreiro, W. Hänsel, M. Chwalla, Thomas Monz, Rainer Blatt
Publikováno v:
Physical Review Letters
We report the creation of Greenberger-Horne-Zeilinger states with up to 14 qubits. By investigating the coherence of up to 8 ions over time, we observe a decay proportional to the square of the number of qubits. The observed decay agrees with a theor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c3ae2cb4bef3ab4d559698ea8c3e9b1
Publikováno v:
Nature
More than one hundred years ago Heinrich Hertz succeeded in transmitting signals over a few meters to a receiving antenna using an electromagnetic oscillator and thus proving the electromagnetic theory developed by James C. Maxwell[1]. Since then, te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc081d50d96dcfdd41d8165bbae056d0
https://pubmed.ncbi.nlm.nih.gov/21346764
https://pubmed.ncbi.nlm.nih.gov/21346764