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5 papers · 1 filter
Atomic nonclassicality quasiprobabilities
T. Kiesel, W. Vogel, S. L. Christensen +3
Although nonclassical quantum states are important both conceptually and as a resource for quantum technology, it is often difficult to test whether a given quantum system displays…
Modes of Oscillation in Radiofrequency Paul Traps
H. Landa, M. Drewsen, B. Reznik +1
We examine the time-dependent dynamics of ion crystals in radiofrequency traps. The problem of stable trapping of general three-dimensional crystals is considered and the validity…
Classical and Quantum Modes of Coupled Mathieu Equations
H. Landa, M. Drewsen, B. Reznik +1
We expand the solutions of linearly coupled Mathieu equations in terms of infinite-continued matrix inversions, and use it to find the modes which diagonalize the dynamical problem…
Exciton-mediated photothermal cooling in GaAs membranes
André Xuereb, Koji Usami, Andreas Naesby +2
Cooling of the mechanical motion of a GaAs nano-membrane using the photothermal effect mediated by excitons was recently demonstrated by some of us [K. Usami, et al., Nature Phys.…
Dynamical control of matter wave splitting using time-dependent optical lattices
Sung Jong Park, Henrik Kjaer Andersen, Sune Mai +2
We report on measurements of splitting Bose-Einstein condensates (BEC) by using a time-dependent optical lattice potential. First, we demonstrate the division of a BEC into a set o…