activity
20082019
most citedOptical interface created by laser-cooled atoms trapped in the evanescent field surrounding an optical nanofiber

819 citations · 2.6k across the 13 of their papers we have counts for

collaborators

13 papers

quant-ph2019★ 75 cited

Deterministic single ion implantation of rare-earth ions for nanometer resolution colour center generation

Karin Groot-Berning, Thomas Kornher, Georg Jacob +6

Single dopant atoms or dopant-related defect centers in a solid state matrix provide an attractive platform for quantum simulation of topological states, for quantum computing and…

quant-ph2018★ 8 cited

Transient Non-Confining Potentials for Speeding Up a Single Ion Heat Pump

E. Torrontegui, S. T. Dawkins, M. Göb +1

We propose speeding up a single ion heat pump based on a tapered ion trap. If a trapped ion is excited in an oscillatory motion axially the radial degrees of freedom are cyclically…

physics.atom-ph2015★ 58 cited

Microscopy with a Deterministic Single Ion Source

Georg Jacob, Karin Groot-Berning, Sebastian Wolf +6

We realize a single particle microscope by using deterministically extracted laser cooled Ca ions from a Paul trap as probe particles for transmission imaging. We demons…

cond-mat.stat-mech2015★ 772 cited

A single-atom heat engine

Johannes Roßnagel, Samuel Thomas Dawkins, Karl Nicolas Tolazzi +4

We report the experimental realization of a single-atom heat engine. An ion is confined in a linear Paul trap with tapered geometry and driven thermally by coupling it alternately…

quant-ph2013★ 283 cited

Observation of the Kibble-Zurek scaling law for defect formation in ion crystals

S. Ulm, J. Roßnagel, G. Jacob +8

Traversal of a symmetry-breaking phase transition at a finite rate can lead to causallyseparated regions with incompatible symmetries and the formation of defects at their boundari…

quant-ph2012★ 27 cited

Experimental creation and analysis of displaced number states

F. Ziesel, T. Ruster, A. Walther +4

We create displaced number states, which are nonclassical generalizations of coherent states, of a vibrational mode of a single trapped ion.