Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Katharina Lauber"'
Publikováno v:
SciPost Physics, Vol 5, Iss 5, p 055 (2018)
We report on the detection of extremely narrow Feshbach resonances by employing a Mott-insulating state for cesium atoms in a three-dimensional optical lattice. The Mott insulator protects the atomic ensemble from high background three-body losses
Externí odkaz:
https://doaj.org/article/e3e393f84c9a447a8dfc18c734e1a6f8
Autor:
Michael Gröbner, Katharina Lauber, Florian Meinert, Hanns-Christoph Nägerl, Emil Kirilov, Philipp Weinmann
Publikováno v:
Journal of Modern Optics. 63:1829-1839
We present a new quantum gas apparatus for ultracold mixtures of K and Cs atoms and ultracold samples of KCs ground-state molecules. We demonstrate the apparatus' capabilities by producing Bose-Einstein condensates (BEC) of 39K and 133Cs in a manner
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::654b1546189b5301ede44c62b6b4dbd4
https://doi.org/10.1080/09500340.2016.1143051
https://doi.org/10.1080/09500340.2016.1143051
Publikováno v:
SciPost Physics, Vol 5, Iss 5, p 055 (2018)
We report on the detection of extremely narrow Feshbach resonances by employing a Mott-insulating state for cesium atoms in a three-dimensional optical lattice. The Mott insulator protects the atomic ensemble from high background three-body losses in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5d68caf37c7202f764c6acd21aa2d70
https://doi.org/10.21468/scipostphys.5.5.055
https://doi.org/10.21468/scipostphys.5.5.055
Autor:
Hanns-Christoph Nägerl, Andrew J. Daley, Philipp Weinmann, Michael Gröbner, Florian Meinert, Manfred J. Mark, Emil Kirilov, Katharina Lauber
Publikováno v:
Science
Quantum tunneling is at the heart of many low-temperature phenomena. In strongly correlated lattice systems, tunneling is responsible for inducing effective interactions, and long-range tunneling substantially alters many-body properties in and out o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a5f9649f61c05240315866565cddc8d
https://doi.org/10.1126/science.1248402
https://doi.org/10.1126/science.1248402
We report on the experimental implementation of tunable occupation-dependent tunneling in a Bose-Hubbard system of ultracold atoms via time-periodic modulation of the on-site interaction energy. The tunneling rate is inferred from a time-resolved mea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::760a8c0c6c8ad453617e6974d56b87f3
Autor:
Katharina Lauber, Florian Meinert, Miłosz Panfil, Jean-Sébastien Caux, Hanns-Christoph Nägerl, Manfred J. Mark
Publikováno v:
Physical Review Letters, 115(8):085301. American Physical Society
We probe the excitation spectrum of an ultracold one-dimensional Bose gas of Cesium atoms with repulsive contact interaction that we tune from the weakly to the strongly interacting regime via a magnetic Feshbach resonance. The dynamical structure fa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e59e99074f00b07064171dc3b501e43e
http://arxiv.org/abs/1505.08152
http://arxiv.org/abs/1505.08152
Autor:
Florian, Meinert, Manfred J, Mark, Emil, Kirilov, Katharina, Lauber, Philipp, Weinmann, Michael, Gröbner, Andrew J, Daley, Hanns-Christoph, Nägerl
Publikováno v:
Science (New York, N.Y.). 344(6189)
Quantum tunneling is at the heart of many low-temperature phenomena. In strongly correlated lattice systems, tunneling is responsible for inducing effective interactions, and long-range tunneling substantially alters many-body properties in and out o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::c0871b07649714e3b2fb9768d93244af
https://pubmed.ncbi.nlm.nih.gov/24926015
https://pubmed.ncbi.nlm.nih.gov/24926015
Autor:
Andrew J. Daley, Hanns-Christoph Nägerl, P. Weinmann, Katharina Lauber, Manfred J. Mark, Emil Kirilov, Florian Meinert
Publikováno v:
Physical Review Letters
We study non-equilibrium dynamics for an ensemble of tilted one-dimensional atomic Bose-Hubbard chains after a sudden quench to the vicinity of the transition point of the Ising paramagnetic to anti-ferromagnetic quantum phase transition. The quench
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9045a451f9b387e6d250bbf38f282a4d
https://pubmed.ncbi.nlm.nih.gov/23952393
https://pubmed.ncbi.nlm.nih.gov/23952393
Autor:
Florian Meinert, Philipp Weinmann, Katharina Lauber, Michael Gröbner, Hanns-Christoph Nägerl, Manfred J. Mark, Emil Kirilov
Publikováno v:
Physical Review Letters
We study atomic Bloch oscillations in an ensemble of one-dimensional tilted superfluids in the Bose-Hubbard regime. For large values of the tilt, we observe interaction-induced coherent decay and matter-wave quantum phase revivals of the Bloch oscill
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de105f0a93f6e98a9d0dd6b9500a474a
Autor:
Elmar Haller, Katharina Lauber, Manfred J. Mark, Alexander Janisch, Andrew J. Daley, Hanns-Christoph Nägerl, Hans Peter Büchler, Johann G. Danzl
Publikováno v:
Physical Review Letters
We prepare and study a metastable attractive Mott insulator state formed with bosonic atoms in a three-dimensional optical lattice. Starting from a Mott insulator with Cs atoms at weak repulsive interactions, we use a magnetic Feshbach resonance to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e91ea1e9df3cb7275ee1e4c67aae31cd
https://pubmed.ncbi.nlm.nih.gov/23003276
https://pubmed.ncbi.nlm.nih.gov/23003276