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Search Publications by: Eite Tiesinga (Fed)

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Displaying 51 - 75 of 373

Spinor Bose-Einstein condensate phase-sensitive amplifier for SU(1,1) interferometry

August 16, 2018
Author(s)
Jonathan Wrubel, Arne Schwettmann, Donald P. Fahey, Glassmann Zachary, Heywon Pechkis, Paul Griffin, Ryan Barnett, Eite Tiesinga
The SU(1,1) interferometer was originally conceived as a Mach-Zehnder interferometer with the beam-splitters replaced by parametric amplifiers. The parametric amplifiers produce states with correlations that result in enhanced phase sensitivity. F = 1

Fractal Universality in Near-Threshold Magnetic Lanthanide Dimers

February 16, 2018
Author(s)
Eite Tiesinga, Constantinos Makrides, Ming Li, Svetlana Kotochigova
Ergodic quantum systems are often quite alike whereas non-ergodic, fractal systems are unique and display characteristic properties. In this paper we explore one of such fractal systems, weakly-bound dysprosium lanthanide molecules in an external magnetic

Development of a new UHV/XHV pressure standard (Cold Atom Vacuum Standard)

November 10, 2017
Author(s)
Julia Scherschligt, James A. Fedchak, Daniel Barker, Stephen Eckel, Nikolai Klimov, Constantinos Makrides, Eite Tiesinga
The National Institute of Standards and Technology has recently begun a program to develop a primary pressure standard that is based on ultra-cold atoms, covering a pressure range of 1 × 10-6 Pa to 1 × 10-10 Pa and possibly lower. These pressures

Dispersive optical detection of magnetic Feshbach resonances in ultracold gases

August 18, 2017
Author(s)
Eite Tiesinga, B Sawyer, M Horvath, A Deb, N Kjaergaard
Magnetically tunable Feshbach resonances in ultracold atomic systems are chiefly identified and characterized through time consuming atom loss spectroscopy. We describe an off-resonant dispersive optical probing technique to rapidly locate Feshbach

Investigation of Feshbach Resonances in ultra-cold 40K spin mixtures

April 3, 2017
Author(s)
Eite Tiesinga, J Krauser, J Heinze, S Gotze, M Lanbecker, N Flashner, L Cook, T Hanna, K Sengstock, C Becker
Magnetically-tunable Feshbach resonances are an indispensable tool for experiments with atomic quantum gases. We report on twenty thus far unpublishedi Feshbach resonances and eleven further probable Feshbach resonances in spin mixtures of ultracold

Emergence of chaotic scattering in ultracold Er and Dy

November 19, 2015
Author(s)
T. Maier, H Kadau, M. Schmitt, M. Wenzel, I. Ferrier-Barbut, T. Pfau, A. Frisch, S. Baier, K. Aikawa, L. Chomaz, Mark M.J., F. Ferlaino, Constantinos Makrides, A Petrov, Svetlana A. Kotochigova, Eite Tiesinga
We show that for complex and magnetic atoms chaotic scattering behavior emerges due to anisotropic inter- action potentials and finite Zeeman coupling. This generic behavior is studied in a collaborative effort for both ultracold dysprosium and erbium

Large effective three-body interaction in a double-well optical lattice

August 3, 2015
Author(s)
Eite Tiesinga, Saurabh Paul
We study ultracold atoms in a double-well (DW) optical lattice and show that the low energy states of a multi-band Bose-Hubbard (BH) Hamiltonian with only pai r-wise interactions is equivalent to an effective single-band Hamiltonian with s trong three-body