4 papers
Feedback Cooling and Thermometry of a Single Trapped Ion Using a Knife Edge
Hans Dang, Sebastian Luff, Martin Fischer +2
We report on a simple and easy to implement method of feedback cooling trapped ions to temperatures below those achievable using only Doppler cooling. Additionally, the feedback co…
Contacting Josephson Junctions via Airbridges in Superconducting Circuits
Prakiran Baidya, MomÄilo MilosavljeviÄ, Murali Krishna Kurmapu +6
Superconducting circuit devices require electrical interconnects between different circuit elements on the chip, for which conventional device architectures use a combination of tw…
Experimental Demonstration of Commutation Relations Using Intensity Correlations
Hans Dang, Sebastian Luff, Martin Fischer +4
The canonical commutation relation is a cornerstone of quantum theory and underlies the Heisenberg uncertainty principle. Although uncertainty relations have been extensively teste…
Polarization dynamics in vertical-cavity surface emitting lasers
Thorsten Ackemann, Markus Sondermann
Experiments and their interpretation on polarization dynamics and polarization switching in vertical-cavity surface-emitting lasers operated in the fundamental transverse mode regi…