activity
20092014
most citedStructural phase transitions and topological defects in ion Coulomb crystals

19 citations · 19 across the 1 of their papers we have counts for

collaborators

6 papers

cond-mat.mes-hall2014★ 19 cited

Structural phase transitions and topological defects in ion Coulomb crystals

Heather L. Partner, Ramil Nigmatullin, Tobias Burgermeister +7

We use laser-cooled ion Coulomb crystals in the well-controlled environment of a harmonic radiofrequency ion trap to investigate phase transitions and defect formation. Topological…

quant-ph2013

Dynamics of topological defects in ion Coulomb crystals

Heather L. Partner, Ramil Nigmatullin, Tobias Burgermeister +5

We study experimentally and theoretically the properties of structural defects (kink solitons) in two-dimensional ion Coulomb crystals. We show how different types of kink solitons…

physics.atom-ph2012

Symmetry Breaking and Topological Defect Formation in Ion Coulomb Crystals

Karsten Pyka, Jonas Keller, Heather L. Partner +9

Symmetry breaking phase transitions play an important role in nature. When a system traverses such a transition at a finite rate, its causally disconnected regions choose the new b…

physics.atom-ph2012

A high-precision rf trap with minimized micromotion for an In+ multiple-ion clock

Karsten Pyka, Norbert Herschbach, Jonas Keller +1

We present an experiment to characterize our new linear ion trap designed for the operation of a many-ion optical clock using 115-In^+ as clock ions. For the characterization of th…

physics.atom-ph2011

Linear Paul trap design for an optical clock with Coulomb crystals

Norbert Herschbach, Karsten Pyka, Jonas Keller +1

We report on the design of a segmented linear Paul trap for optical clock applications using trapped ion Coulomb crystals. For an optical clock with an improved short-term stabilit…

cond-mat.quant-gas2009

Momentum-Resolved Bragg Spectroscopy in Optical Lattices

P. T. Ernst, S. Götze, J. S. Krauser +4

Strongly correlated many-body systems show various exciting phenomena in condensed matter physics such as high-temperature superconductivity and colossal magnetoresistance. Recentl…