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Dissipative preparation of phase- and number-squeezed states with ultracold atoms
Roland Cristopher F. Caballar, Sebastian Diehl, Harri Mäkelä +2
We develop a dissipative quantum state preparation scheme for the creation of phase- and number-squeezed states. It utilizes ultracold atoms in a double-well configuration immersed…
Accurate Atom Counting in Mesoscopic Ensembles
D. B. Hume, I. Stroescu, M. Joos +3
Many cold atom experiments rely on precise atom number detection, especially in the context of quantum-enhanced metrology where effects at the single particle level are important.…
Prospects for measuring the gravitational free-fall of antihydrogen with emulsion detectors
AEgIS Collaboration, S. Aghion, O. Ahlén +68
The main goal of the AEgIS experiment at CERN is to test the weak equivalence principle for antimatter. AEgIS will measure the free-fall of an antihydrogen beam traversing a moiré…
Motional Coherence of Fermions Immersed in a Bose Gas
R. Scelle, T. Rentrop, A. Trautmann +2
We prepare a superposition of two motional states by addressing lithium atoms immersed in a Bose-Einstein condensate of sodium with a species-selective potential. The evolution of…
Measuring and engineering entropy and spin squeezing in weakly linked Bose-Einstein condensates
F. Cattani, C. Gross, M. K. Oberthaler +1
We propose a method to infer the single-particle entropy of bosonic atoms in an optical lattice and to study the local evolution of entropy, spin squeezing, and entropic inequaliti…