Zobrazeno 1 - 10
of 32
pro vyhledávání: '"C F, Roos"'
Autor:
H. Hainzer, D. Kiesenhofer, T. Ollikainen, M. Bock, F. Kranzl, M. K. Joshi, G. Yoeli, R. Blatt, T. Gefen, C. F. Roos
Publikováno v:
Physical Review X, Vol 14, Iss 1, p 011033 (2024)
Ramsey interferometry is a widely used tool for precisely measuring transition frequencies between two energy levels of a quantum system, with applications in time keeping, precision spectroscopy, quantum optics, and quantum information. Often, the c
Externí odkaz:
https://doaj.org/article/a5fa97830bdc4ef4b96a310f1760d108
Publikováno v:
New Journal of Physics, Vol 22, Iss 10, p 103013 (2020)
We present experiments on polarization gradient cooling of Ca ^+ multi-ion Coulomb crystals in a linear Paul trap. Polarization gradient cooling of the collective modes of motion whose eigenvectors have overlap with the symmetry axis of the trap is a
Externí odkaz:
https://doaj.org/article/57c2016966d646a7a37b1c48fa047bac
Publikováno v:
New Journal of Physics, Vol 21, Iss 7, p 073017 (2019)
Fast entangling quantum gates can significantly enhance the performance of a trapped-ion quantum computer. In pursuit of implementing a fast two-qubit gate, we investigate the coherent excitation of a ^40 Ca ^+ ion with a train of picosecond pulses r
Externí odkaz:
https://doaj.org/article/41dd832861cd46a1bef80d1290fe04bf
Publikováno v:
New Journal of Physics, Vol 21, Iss 10, p 103003 (2019)
We perform quantum logic spectroscopy with a ^27 Al ^+ / ^40 Ca ^+ mixed ion crystal in a linear Paul trap for a measurement of the ${(3{s}^{2}){}^{1}{{\rm{S}}}_{0}\leftrightarrow (3s3p)}^{3}{{\rm{P}}}_{1},F=7/2$ intercombination transition in ^27 Al
Externí odkaz:
https://doaj.org/article/8076f1029ffb41659d9380ee1ce52e6e
Publikováno v:
New Journal of Physics, Vol 17, Iss 10, p 103001 (2015)
We investigate the dynamics of an ion sympathetically cooled by another laser-cooled ion or small ion crystal. To this end, we develop simple models of the cooling dynamics in the limit of weak Coulomb interactions. Experimentally, we create a two-io
Externí odkaz:
https://doaj.org/article/e72e72154ee74ebb8f81a1093bb89fcc
Publikováno v:
Nature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=r3c4b2081b22::eb607145eaae8e29e0482b5b4da412a2
Publikováno v:
Physical Review X, Vol 3, Iss 3, p 031015 (2013)
Studying entanglement growth in quantum dynamics provides both insight into the underlying microscopic processes and information about the complexity of the quantum states, which is related to the efficiency of simulations on classical computers. Rec
Externí odkaz:
https://doaj.org/article/1ab2a7f7648b43e093558c10fc2dd238
Autor:
J. Casanova, C. Sabín, J. León, I. L. Egusquiza, R. Gerritsma, C. F. Roos, J. J. García-Ripoll, E. Solano
Publikováno v:
Physical Review X, Vol 1, Iss 2, p 021018 (2011)
We design a quantum simulator for the Majorana equation, a non-Hamiltonian relativistic wave equation that might describe neutrinos and other exotic particles beyond the standard model. Driven by the need of the simulation, we devise a general method
Externí odkaz:
https://doaj.org/article/f6fa2ad25a9046139c7765c215c74e3e
Autor:
W. W. Dong, C. A. Brau, J. W. Waters, P. A. Tompkins, F. C. Carroll, R. R. Price, D. R. Pickens, C. F. Roos
Publikováno v:
Journal of X-ray science and technology. 4(4)
The Vanderbilt University medical FEL (free electron laser) Compton x-ray program is close to being operational. The FEL modifications necessary for this new capability are near completion. The transport and detection systems for electron and IR beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f26e7178ef2336e8ab0dfe1b256a3cc0
https://pubmed.ncbi.nlm.nih.gov/21307471
https://pubmed.ncbi.nlm.nih.gov/21307471
Autor:
M, Chwalla, J, Benhelm, K, Kim, G, Kirchmair, T, Monz, M, Riebe, P, Schindler, A S, Villar, W, Hänsel, C F, Roos, R, Blatt, M, Abgrall, G, Santarelli, G D, Rovera, Ph, Laurent
Publikováno v:
Physical review letters. 102(2)
We report on the first absolute transition frequency measurement at the 10;{-15} level with a single, laser-cooled 40Ca+ ion in a linear Paul trap. For this measurement, a frequency comb is referenced to the transportable Cs atomic fountain clock of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::3308bc244e4e7ad5809021e6bcd06143
https://pubmed.ncbi.nlm.nih.gov/19257267
https://pubmed.ncbi.nlm.nih.gov/19257267