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Your search keyword '"Nagerl, H.-C."' showing total 10 results
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10 results on '"Nagerl, H.-C."'

1. Evaluation of heating effects on atoms trapped in an optical trap

Author

Gardiner, C. W., Ye, J., Nagerl, H. C., and Kimble, H. J.

Subjects
Quantum Physics
Abstract

We solve a stochastic master equation based on the theory of Savard et al. [T.A. Savard, K.M. O'Hara and J.E. Thomas, Phys. Rev. A 56, R1095 (1997)] for heating arising from fluctuations in the trapping laser intensity. We compare with recent experiments of Ye et. al. [J. Ye, D.W. Vernooy and H.J. Kimble, Trapping of single atoms in cavity QED, quant-ph/9908007, Phys. Rev. Lett. (1999 in press)], and find good agreement with the experimental measurements of the distribution of trap occupancy times. The major cause of trap loss arises from the broadening of the energy distribution of the trapped atom, rather than the mean heating rate, which is a very much smaller effect., Comment: 3 pages TeX plus 4 postscript files

Published
1999
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2. Evidence for Efimov quantum states in an ultracold gas of caesium atoms

Author

Kraemer, T., Mark, M., Waldburger, P., Danzl, J. G., Chin, C., Engeser, B., Lange, A. D., Pilch, K., Jaakkola, A., Nagerl, H.-C., and Grimm, R.

Subjects
Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Author(s): T. Kraemer [1]; M. Mark [1]; P. Waldburger [1]; J. G. Danzl [1]; C. Chin [1, 2]; B. Engeser [1]; A. D. Lange [1]; K. Pilch [1]; A. Jaakkola [...]

Published
2006
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7. Evaporative cooling in optical dipole traps

Author

Grimm, R., primary, Hammes, M., additional, Rychtarik, D., additional, Weber, T., additional, Herbig, J., additional, Nagerl, H.-C., additional, Mudrich, M., additional, Kraft, S., additional, Singer, K., additional, Mosk, A., additional, and Weidemuller, M., additional

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10. Global analysis of data on the spin-orbit-coupled A ¹Σu+ and b ³∏u states of Cs2.

Author

Bai, Jianmei, Ahmed, E. H., Beser, B., Guan, Y., Kotochigova, S., Lyyra, A. M., Ashman, S., Wolfe, C. M., Huennekens, J., Feng Xie, Dan Li, Li Li, Tamanis, M., Ferber, R., Drozdova, A., Pazyuk, E., Stolyarov, A. V., Danzl, J. G., Nagerl, H.-C., and Bouloufa, N.

Subjects
*CESIUM, *DIMERS, *FOURIER transform spectroscopy, *SPECTRUM analysis, *POLARIZATION spectroscopy
Abstract

We present experimentally derived potential curves and spin-orbit interaction functions for the strongly perturbed A ¹Σu+ and b³Π, states of the cesium dimer. The results are based on data from several sources. Laser-induced fluorescence Fourier transform spectroscopy (LIF FTS) was used some time ago in the Laboratoire Aimé Cotton primarily to study the X ¹Σg+ state. More recent work at Tsinghua University provides information from moderate resolution spectroscopy on the lowest levels of the b ³Π±0u state as well as additional high-resolution data. From Innsbruck University, we have precision data obtained with cold Cs2 molecules. Recent data from Temple University was obtained using the optical-optical double resonance polarization spectroscopy technique, and finally, a group at the University of Latvia has added additional LIF FTS data. In the Hamiltonian matrix, we have used analytic potentials (the expanded Morse oscillator form) with both finite-difference (FD) coupled-channel and discrete variable representation (DVR) calculations of the term values. Fitted diagonal and off-diagonal spin-orbit functions are obtained and compared with ab initio results from Temple and Moscow State universities. [ABSTRACT FROM AUTHOR]

Published
2011
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