Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Ulrich Poschinger"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract Spatially-structured laser beams, eventually carrying orbital angular momentum, affect electronic transitions of atoms and their motional states in a complex way. We present a general framework, based on the spherical tensor decomposition of
Externí odkaz:
https://doaj.org/article/6fc2b635ce0d4e4f862abb1a46c22a81
Autor:
Jonathan Durandau, Janis Wagner, Frédéric Mailhot, Charles-Antoine Brunet, Ferdinand Schmidt-Kaler, Ulrich Poschinger, Yves Bérubé-Lauzière
Publikováno v:
Quantum, Vol 7, p 1175 (2023)
A promising approach for scaling-up trapped-ion quantum computer platforms is by storing multiple trapped-ion qubit sets ('ion crystals') in segmented microchip traps and to interconnect these via physical movement of the ions ('shuttling'). Already
Externí odkaz:
https://doaj.org/article/fb15a1ca3b0e41d9be3243d6014d15de
Autor:
Fabian Kreppel, Christian Melzer, Diego Olvera Millán, Janis Wagner, Janine Hilder, Ulrich Poschinger, Ferdinand Schmidt-Kaler, André Brinkmann
Publikováno v:
Quantum, Vol 7, p 1176 (2023)
The increasing capabilities of quantum computing hardware and the challenge of realizing deep quantum circuits require fully automated and efficient tools for compiling quantum circuits. To express arbitrary circuits in a sequence of native gates spe
Externí odkaz:
https://doaj.org/article/913c8429edde4bfd9c0e7d130f6aff14
Autor:
Christian Tomás Schmiegelow, Ulrich Poschinger, Ferdinand Schmidt-Kaler, V. Kaushal, Bjoern Lekitsch, Janine Hilder, Markus Müller, Daniel Pijn, A. Stahl, Alejandro Bermudez
Publikováno v:
AVS Quantum Science 2, 014101 (2020). doi:10.1116/1.5126186
AVS Quantum Science
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
AVS Quantum Science
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Moving trapped-ion qubits in a microstructured array of radiofrequency traps offers a route toward realizing scalable quantum processing nodes. Establishing such nodes, providing sufficient functionality to represent a building block for emerging qua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e024925ba80a5f4d6970642d12d351cb
Autor:
Ferdinand Schmidt-Kaler, Christian Tomás Schmiegelow, Ulrich Poschinger, T. Ruster, Jonas Schulz, H. Kaufmann
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
Nature Communications
Nature Communications
Photons can carry angular momentum, not only due to their spin, but also due to their spatial structure. This extra twist has been used, for example, to drive circular motion of microscopic particles in optical tweezers as well as to create vortices
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a151f120acda5471442a3025ba0d4b70
https://doaj.org/article/293e534b5ee34fcabdec6e19127c68e8
https://doaj.org/article/293e534b5ee34fcabdec6e19127c68e8
Publikováno v:
Lectures on Quantum Information
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cce61e6dec3b286badde43a5bc4f1b4
https://doi.org/10.1002/9783527805785.ch24
https://doi.org/10.1002/9783527805785.ch24
Autor:
D. von Lindenfels, H. Kaufmann, T. Ruster, V. Kaushal, Juan Sebastián Schulz, Ferdinand Schmidt-Kaler, Ulrich Poschinger, Marcelo Alejandro Luda, Christian Tomás Schmiegelow
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
We demonstrate the deterministic generation of multipartite entanglement based on scalable methods. Four qubits are encoded in Ca+40, stored in a microstructured segmented Paul trap. These qubits are sequentially entangled by laser-driven pairwise ga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a4ef25e21e6a8a9629753ff0edfba4f
https://pubmed.ncbi.nlm.nih.gov/29077443
https://pubmed.ncbi.nlm.nih.gov/29077443
Autor:
Christian Tomás Schmiegelow, D. von Lindenfels, Jonas Schulz, T. Ruster, Marcelo Alejandro Luda, V. Kaushal, H. Kaufmann, Ferdinand Schmidt-Kaler, Ulrich Poschinger
Publikováno v:
Physical Review A. 95
We demonstrate a swap gate between laser-cooled ions in a segmented microtrap via fast physical swapping of the ion positions. This operation is used in conjunction with qubit initialization, manipulation, and readout and with other types of shuttlin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc883e02ab9d48ab005377d8b6879a38
https://doi.org/10.1103/physreva.95.052319
https://doi.org/10.1103/physreva.95.052319
Autor:
Philipp Schindler, Michael J. Biercuk, Simon C. Benjamin, Ferdinand Schmidt-Kaler, Xiaosi Xu, Joe O'Gorman, Ulrich Poschinger, Alejandro Bermudez, Vlad Negnevitsky, Jonathan Home, Ramil Nigmatullin, Thomas Monz, Markus Müller, Rainer Blatt, Cornelius Hempel
Publikováno v:
Physical Review X, Vol 7, Iss 4, p 041061 (2017)
Digital.CSIC. Repositorio Institucional del CSIC
instname
Physical Review X, 7 (4)
Digital.CSIC. Repositorio Institucional del CSIC
instname
Physical Review X, 7 (4)
41 pags., 32 figs., 7 tabs. -- Open Access funded by Creative Commons Atribution Licence 4.0
A quantitative assessment of the progress of small prototype quantum processors towards fault-tolerant quantum computation is a problem of current inter
A quantitative assessment of the progress of small prototype quantum processors towards fault-tolerant quantum computation is a problem of current inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f85cafd651ffd3b439642e81ef4786b7
http://arxiv.org/abs/1705.02771
http://arxiv.org/abs/1705.02771
Autor:
Ferdinand Schmidt-Kaler, Ulrich Poschinger, Claudia Warschburger, Christian Tomás Schmiegelow, H. Kaufmann, T. Ruster
Publikováno v:
Applied Physics B. 122
We demonstrate unprecedentedly long lifetimes for electron spin superposition states of a single trapped \(^{40}\)Ca\(^+\) ion. For a Ramsey measurement, we achieve a \(1{/}\sqrt{e}\) coherence time of 300(50) ms, while a spin-echo experiment yields
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ad315bca90a187135dc4f9352b0d925
https://doi.org/10.1007/s00340-016-6527-4
https://doi.org/10.1007/s00340-016-6527-4