Zobrazeno 1 - 10
of 217
pro vyhledávání: '"Heck Robert"'
Autor:
Ding Thomas, Hagstotz Steffen, Zhang Yizhu, Laux Martin, Meyer Kristina, Raith Philipp, Kaldun Andreas, Ott Christian, Heck Robert, Pfeifer Thomas
Publikováno v:
EPJ Web of Conferences, Vol 41, p 02022 (2013)
We laser-dress several doubly-excited states in helium. Tuning the coupling-laser intensity from perturbative to the strong-coupling regime, we are able to measure phases imprinted on the two-electron wavefunctions, and observe a new continuum coupli
Externí odkaz:
https://doaj.org/article/0cc814308c6241e982a1e08fdc0d2bc3
Autor:
Ding Thomas, Hagstotz Steffen, Zhang Yizhu, Laux Martin, Meyer Kristina, Raith Philipp, Kaldun Andreas, Ott Christian, Heck Robert, Pfeifer Thomas
Publikováno v:
EPJ Web of Conferences, Vol 41, p 02023 (2013)
A two-electron wave packet among the lowest-lying doubly-excited states in helium is experimentally observed. It creates a 1-femtosecond modulation in the transient-absorption signal modified by a time-delayed coupling laser.
Externí odkaz:
https://doaj.org/article/66c3fa59619049f081fd39dbcf7c2f86
Autor:
Elíasson, Ottó, Laustsen, Jens S., Heck, Robert, Müller, Romain, Weidner, Carrie A., Arlt, Jan J., Sherson, Jacob F.
Publikováno v:
Phys. Rev. A 102, 053311 (2020)
We demonstrate a method to determine the position of single atoms in a three-dimensional optical lattice. Atoms are sparsely loaded from a far-off-resonant optical tweezer into a few vertical planes of a cubic optical lattice positioned near a high-r
Externí odkaz:
http://arxiv.org/abs/1912.03079
Publikováno v:
In Orthopedic Clinics of North America January 2023 54(1):23-35
Autor:
Elíasson, Ottó, Heck, Robert, Laustsen, Jens S., Napolitano, Mario, Müller, Romain, Bason, Mark G., Arlt, Jan J., Sherson, Jacob F.
Publikováno v:
J. Phys. B 52, 075003 (2019)
We demonstrate novel implementations of high-precision optical magnetometers which allow for spatially-selective and spatially-resolved in situ measurements using cold atomic clouds. These are realised by using shaped dispersive probe beams combined
Externí odkaz:
http://arxiv.org/abs/1811.01798
Autor:
Heck, Robert, Vuculescu, Oana, Sørensen, Jens Jakob, Zoller, Jonathan, Andreasen, Morten G., Bason, Mark G., Ejlertsen, Poul, Elíasson, Ottó, Haikka, Pinja, Laustsen, Jens S., Nielsen, Lærke L., Mao, Andrew, Müller, Romain, Napolitano, Mario, Pedersen, Mads K., Thorsen, Aske R., Bergenholtz, Carsten, Calarco, Tommaso, Montangero, Simone, Sherson, Jacob F.
Publikováno v:
PNAS, published online ahead of print (2018)
We introduce a novel remote interface to control and optimize the experimental production of Bose-Einstein condensates (BECs) and find improved solutions using two distinct implementations. First, a team of theoreticians employed a Remote version of
Externí odkaz:
http://arxiv.org/abs/1709.02230
Autor:
Bason, Mark G., Heck, Robert, Napolitano, Mario, Elíasson, Ottó, Müller, Romain, Thorsen, Aske, Zhang, Wen-Zhuo, Arlt, Jan, Sherson, Jacob F.
Publikováno v:
J. Phys. B 51, 175301 (2018)
We demonstrate how dispersive atom number measurements during evaporative cooling can be used for enhanced determination of the parameter dependence of the transition to a Bose-Einstein condensate (BEC). In this way shot-to-shot fluctuations in initi
Externí odkaz:
http://arxiv.org/abs/1607.02934
Autor:
Pedersen, Mads Kock, Skyum, Birk, Heck, Robert, Müller, Romain, Bason, Mark, Lieberoth, Andreas, Sherson, Jacob F.
Publikováno v:
Phys. Rev. Phys. Educ. Res. 12, 013102 (2016)
A virtual learning environment can engage university students in the learning process in ways that the traditional lectures and lab formats can not. We present our virtual learning environment \emph{StudentResearcher} which incorporates simulations,
Externí odkaz:
http://arxiv.org/abs/1511.01714
Autor:
Ott, Christian, Kaldun, Andreas, Raith, Philipp, Meyer, Kristina, Laux, Martin, Zhang, Yizhu, Hagstotz, Steffen, Ding, Thomas, Heck, Robert, Pfeifer, Thomas
The concerted motion of two or more bound electrons governs atomic and molecular non-equilibrium processes and chemical reactions. It is thus a long-standing scientific dream to measure the dynamics of two bound correlated electrons in the quantum re
Externí odkaz:
http://arxiv.org/abs/1205.0519
Autor:
Kohler, Markus C., Ott, Christian, Raith, Philipp, Heck, Robert, Schlegel, Iris, Keitel, Christoph H., Pfeifer, Thomas
Publikováno v:
Phys. Rev. Lett. 105, 203902 (2010)
High-order harmonic generation (HHG) is investigated theoretically in the over-the-barrier ionization (OBI) regime revealing the strong signature of interference between two separately ionized and separately propagating free wave packets of a single
Externí odkaz:
http://arxiv.org/abs/1007.1308