439 citations · 746 across the 3 of their papers we have counts for
3 papers
quant-ph2014★ 251 cited
Detecting multiparticle entanglement of Dicke states
Bernd Lücke, Jan Peise, Giuseppe Vitagliano +4
Recent experiments demonstrate the production of many thousands of neutral atoms entangled in their spin degrees of freedom. We present a criterion for estimating the amount of ent…
cond-mat.quant-gas2012★ 439 cited
Twin matter waves for interferometry beyond the classical limit
Bernd Lücke, Manuel Scherer, Jens Kruse +10
Interferometers with atomic ensembles constitute an integral part of modern precision metrology. However, these interferometers are fundamentally restricted by the shot noise limit…
cond-mat.quant-gas2010★ 56 cited
Spontaneous breaking of spatial and spin symmetry in spinor condensates
M. Scherer, B. Lücke, G. Gebreyesus +6
Parametric amplification of quantum fluctuations constitutes a fundamental mechanism for spontaneous symmetry breaking. In our experiments, a spinor condensate acts as a parametric…