Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Ch. Koller"'
Autor:
Feiran Wang, R. Crawford, K. Wongcharoenbhorn, N. Welch, German A. Sinuco-León, T. M. Fromhold, Peter Krüger, Ch. Koller, F. Intravaia
We show that the performance and functionality of atom-chips can be transformed by using graphene-based van der Waals heterostructures to overcome present limitations on the lifetime of the trapped atom cloud and on its proximity to the chip surface.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ace6f03ab6e465f8bd612de111a109de
http://arxiv.org/abs/2105.01907
http://arxiv.org/abs/2105.01907
Autor:
Helmut Ritsch, Johannes Majer, Ch. Koller, K. Sandner, Jörg Schmiedmayer, Tobias Nöbauer, Robert Amsüss, Stefan Putz
Publikováno v:
Physical Review A. 85
We study experimentally and theoretically a dense ensemble of negatively charged nitrogen-vacancy centers in diamond coupled to a high-$Q$ superconducting coplanar waveguide cavity mode at low temperature. The nitrogen-vacancy centers are modeled as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f72cb627691f72323d8a23e22ffa25ac
https://doi.org/10.1103/physreva.85.053806
https://doi.org/10.1103/physreva.85.053806
Autor:
Nils Lippok, R. Amsuess, Johannes Majer, Ch. Koller, Jörg Schmiedmayer, Christoph Hufnagel, J. Verdú, S. Schneider, Stefan Haslinger
We present a versatile and compact electron beam driven source for alkali metal atoms, which can be implemented in cryostats. With a heat load of less than 10mW, the heat dissipation normalized to the atoms loaded into the magneto-optical Trap (MOT),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67b722a75a64b20aef279c22ea849ad2
http://arxiv.org/abs/1003.5144
http://arxiv.org/abs/1003.5144
Autor:
Thorsten Schumm, Thomas Plisson, Aurélien Perrin, Thomas Betz, Ch. Koller, Jörg Schmiedmayer, Robert Bücker, Joerg Rottmann, Stephanie Manz
Publikováno v:
New Journal of Physics
New Journal of Physics, Institute of Physics: Open Access Journals, 2009, 11, pp.103039. ⟨10.1088/1367-2630/11/10/103039⟩
New Journal of Physics, Institute of Physics: Open Access Journals, 2009, 11, pp.103039. ⟨10.1088/1367-2630/11/10/103039⟩
We present a novel imaging system for ultracold quantum gases in expansion. After release from a confining potential, atoms fall through a sheet of resonant excitation laser light and the emitted fluorescence photons are imaged onto an amplified CCD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::347f78ab95d3c59a8a460a4bf2ed818e
Autor:
Ch. Koller, Jörg Schmiedmayer, Thorsten Schumm, Sebastian Hofferberth, Robert Bücker, Adilet Imambekov, Igor Mazets, Stephanie Manz, Thomas Betz, Aurélien Perrin, Eugene Demler
We measure the two-point density correlation function of freely expanding quasicondensates in the weakly interacting quasi-one-dimensional (1D) regime. While initially suppressed in the trap, density fluctuations emerge gradually during expansion as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75f7cd2873dfb15f9565aa55c0cccf24
Publikováno v:
Physical review letters. 103(4)
Placing an ensemble of ${10}^{6}$ ultracold atoms in the near field of a superconducting coplanar waveguide resonator with a quality factor $Q\ensuremath{\sim}{10}^{6}$, one can achieve strong coupling between a single microwave photon in the coplana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ea831bde3c5a9950ea0e2468bfaad19
https://pubmed.ncbi.nlm.nih.gov/19659351
https://pubmed.ncbi.nlm.nih.gov/19659351
Autor:
P. Ch. Koller
Publikováno v:
Zeitschrift für Induktive Abstammungs- und Vererbungslehre. 60:137-151
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0d44c244182c6ff88250c53f05a3e26
https://doi.org/10.1007/bf01850267
https://doi.org/10.1007/bf01850267
Autor:
P. Ch. Koller
Publikováno v:
Journal of Genetics. 26:215-229
1. The behaviour of two modifiers inDrosophila obscura, m1, located in theX-chromosome at 13·7 units fromPI andm2, linked with orange in the third linkage group and located at 9·2 units from orange, is described. 2. PII, an allelomorph of the previ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2c63776741985b8a31220381940698d
https://doi.org/10.1007/bf02984690
https://doi.org/10.1007/bf02984690
Autor:
P. Ch. Koller
Publikováno v:
Genetica. 16:447-466
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::539fdc4a4d8fa5617aa443d12efa9809
https://doi.org/10.1007/bf01984740
https://doi.org/10.1007/bf01984740
Autor:
F. A. E. Crew, P. Ch. Koller
Publikováno v:
Journal of Genetics. 26:359-383
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::691767053f831401d7f715dea79bc8b2
https://doi.org/10.1007/bf02984496
https://doi.org/10.1007/bf02984496