Search Results - "Hechenblaikner, G."

Observation of the scissors mode and evidence for superfluidity of a trapped bose-einstein condensed Gas by Marago, OM, Hopkins, SA, Arlt, J, Hodby, E, Hechenblaikner, G, Foot, CJ

“…We report the observation of the scissors mode of a Bose-Einstein condensed gas of 87Rb atoms in a magnetic trap, which gives direct evidence of superfluidity…”
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Vortex nucleation in Bose-Einstein condensates in an oblate, purely magnetic potential by Hodby, E, Hechenblaikner, G, Hopkins, S A, Maragò, O M, Foot, C J

“…We have investigated the formation of vortices by rotating the purely magnetic potential confining a Bose-Einstein condensate. We modified the bias field of an…”
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Experimental observation of Beliaev coupling in a Bose-Einstein condensate by Hodby, E, Maragò, O M, Hechenblaikner, G, Foot, C J

“…We report the first experimental observation of Beliaev coupling between collective excitations of a Bose-Einstein condensed gas. Beliaev coupling is not…”
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Cavity-Induced Atom Cooling in the Strong Coupling Regime by Horak, Peter, Hechenblaikner, Gerald, Gheri, Klaus M., Stecher, Herwig, Ritsch, Helmut

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Experimental observation of a superfluid gyroscope in a dilute Bose-Einstein condensate by Hodby, E, Hopkins, S A, Hechenblaikner, G, Smith, N L, Foot, C J

“…We have observed a three-dimensional gyroscopic effect associated with a vortex in a dilute Bose-Einstein condensed gas. A condensate with a vortex possesses a…”
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Observation of harmonic generation and nonlinear coupling in the collective dynamics of a bose-einstein condensate by Hechenblaikner, G, Marago, OM, Hodby, E, Arlt, J, Hopkins, S, Foot, CJ

“…We report the observation of harmonic generation and strong nonlinear coupling of two collective modes of a condensed gas of rubidium atoms. Using a modified…”
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Direct observation of irrotational flow and evidence of superfluidity in a rotating Bose-Einstein condensate by Hechenblaikner, G, Hodby, E, Hopkins, S A, Maragò, O M, Foot, C J

“…We have observed the expansion of vortex-free, rotating Bose condensates after their sudden release from a slowly rotating anisotropic trap. Conservation of…”
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Probing the flyby anomaly with the future STE-QUEST mission by Páramos, Jorge, Hechenblaikner, G.

“…In this study, we demonstrate that the flyby anomaly, an unexpected acceleration detected in some of the gravitational assists of the Galileo, NEAR, Cassini…”
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Properties of quasi-two-dimensional condensates in highly anisotropic traps by Hechenblaikner, G., Krueger, J. M., Foot, C. J.

“…We theoretically investigate some of the observable properties of quasi-two-dimensional condensates. Using a variational model based on a Gaussian-parabolic…”
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Digital Laser Frequency Control and Phase-Stabilization Loops in a High Precision Space-Borne Metrology System by Hechenblaikner, G, Wand, V, Kersten, M, Danzmann, K, García, A, Heinzel, G, Nofrarias, M, Steier, F

“…We report on the design, implementation, and characterization of fully digital control loops for laser frequency stabilization, differential phase-locking, and…”
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Calculation of mode coupling for quadrupole excitations in a Bose-Einstein condenstate by Hechenblaikner, G., Morgan, S. A., Hodby, E., Maragò, O. M., Foot, C. J.

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Temperature dependence of damping and frequency shifts of the scissors mode of a trapped Bose-Einstein condensate by Maragò, O, Hechenblaikner, G, Hodby, E, Foot, C

“…We have studied the properties of the scissors mode of a trapped Bose-Einstein condensate of 87Rb atoms at finite temperature. We measured a significant shift…”
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Space-based detectors by Sesana, A., Weber, W. J., Killow, C. J., Perreur-Lloyd, M., Robertson, D. I., Ward, H., Fitzsimons, E. D., Bryant, J., Cruise, A. M., Dixon, G., Hoyland, D., Smith, D., Bogenstahl, J., McNamara, P. W., Gerndt, R., Flatscher, R., Hechenblaikner, G., Hewitson, M., Gerberding, O., Barke, S., Brause, N., Bykov, I., Danzmann, K., Enggaard, A., Gianolio, A., Vendt Hansen, T., Heinzel, G., Hornstrup, A., Jennrich, O., Kullmann, J., Møller-Pedersen, S., Rasmussen, T., Reiche, J., Sodnik, Z., Suess, M., Armano, M., Sumner, T., Bender, P. L., Akutsu, T., Sathyaprakash, B. S.

“…The parallel session C5 on Space-Based Detectors gave a broad overview over the planned space missions related to gravitational wave detection. Overviews of…”
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Cooling an atom in a weakly driven high- Q cavity by Hechenblaikner, Gerald, Gangl, Markus, Horak, Peter, Ritsch, Helmut

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Macroscopic quantum resonators in space by Kaltenbaek, R., Hechenblaikner, G., Kiesel, N., Johann, U., Aspelmeyer, M.

“…We propose a space-based experiment that aims at testing the predictions of quantum theory against those of macrorealistic models. The proposed experimental…”
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Coupling characterization and noise studies of the Optical Metrology System on-board the LISA Pathfinder Mission by Hechenblaikner, G, Gerndt, R, Johann, U, Luetzow-Wentzky, P, Wand, V, Audley, H, Danzmann, K, Garcia-Marin, A, Heinzel, G, Nofrarias, M, Steier, F

“…Appl.Opt.49:5665-5677,2010 In this article we describe the first investigations of the complete engineering model of the Optical Metrology System (OMS), a key…”
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Testing and design of a lens system for atom trapping and fluorescence detection by Baranowski, P, Zacks, J, Hechenblaikner, G, Foot, C J

“…We present methods and results of the testing of an inexpensive home-made diffraction limited lens system, the design of which was proposed in a recent paper…”
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Properties of quasi two-dimensional condensates in highly anisotropic traps by Hechenblaikner, G, Krueger, J. M, Foot, C. J

“…We theoretically investigate some of the observable properties of quasi two-dimensional condensates. Using a variational model based on a Gaussian-parabolic…”
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Quasi-2D Confinement of a BEC in a Combined Optical and Magnetic Potential by Smith, N. L, Heathcote, W. H, Hechenblaikner, G, Nugent, E, Foot, C. J

“…We have added an optical potential to a conventional Time-averaged Orbiting Potential (TOP) trap to create a highly anisotropic hybrid trap for ultracold…”
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The experimental observation of Beliaev damping in a Bose condensed gas by Hodby, E, Marago', O. M, Hechenblaikner, G, Foot, C. J

“…We report the first experimental observation of Beliaev damping of a collective excitation in a Bose-condensed gas. Beliaev damping is not predicted by the…”
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