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Spectroscopy of mechanical dissipation in micro-mechanical membranes
Andreas Jöckel, Matthew T. Rakher, Maria Korppi +4
We measure the frequency dependence of the mechanical quality factor (Q) of SiN membrane oscillators and observe a resonant variation of Q by more than two orders of magnitude. The…
Realization of an optomechanical interface between ultracold atoms and a membrane
Stephan Camerer, Maria Korppi, Andreas Jöckel +3
We have realized a hybrid optomechanical system by coupling ultracold atoms to a micromechanical membrane. The atoms are trapped in an optical lattice, which is formed by retro-ref…
Quantum computing implementations with neutral particles
Antonio Negretti, Philipp Treutlein, Tommaso Calarco
We review quantum information processing with cold neutral particles, that is, atoms or polar molecules. First, we analyze the best suited degrees of freedom of these particles for…
Coupling ultracold atoms to mechanical oscillators
David Hunger, Stephan Camerer, Maria Korppi +3
In this article we discuss and compare different ways to engineer an interface between ultracold atoms and micro- and nanomechanical oscillators. We start by analyzing a direct mec…
Tomographic reconstruction of the Wigner function on the Bloch sphere
Roman Schmied, Philipp Treutlein
We present a filtered backprojection algorithm for reconstructing the Wigner function of a system of large angular momentum j from Stern-Gerlach-type measurements. Our method is ad…