216 citations · 672 across the 9 of their papers we have counts for
7 papers · 1 filter
Tomography of a number-resolving detector by reconstruction of an atomic many-body quantum state
Mareike Hetzel, Luca Pezzè, Cebrail Pür +8
The high-fidelity analysis of many-body quantum states of indistinguishable atoms requires the accurate counting of atoms. Here we report the tomographic reconstruction of an atom-…
Preparation of mesoscopic atomic ensembles with single-particle resolution
A. Hüper, C. Pür, M. Hetzel +7
The analysis of entangled atomic ensembles and their application for interferometry beyond the standard quantum limit requires an accurate determination of the number of atoms. We…
Dual-rail optical gradient echo memory
Daniel B. Higginbottom, Jiao Geng, Geoff T. Campbell +7
We introduce a scheme for the parallel storage of frequency separated signals in an optical memory and demonstrate that this dual-rail storage is a suitable memory for high fidelit…
Highly efficient optical quantum memory with long coherence time in cold atoms
Y. -W. Cho, G. T. Campbell, J. L. Everett +7
Optical quantum memory is an essential element for long distance quantum communication and photonic quantum computation protocols. The practical implementation of such protocols re…
Electromagnetically induced transparency and four-wave mixing in a cold atomic ensemble with large optical depth
J. Geng, G. T. Campbell, J. Bernu +7
We report on the delay of optical pulses using electromagnetically induced transparency in an ensemble of cold atoms with an optical depth exceeding 500. To identify the regimes in…
Experimental demonstration of Gaussian protocols for one-sided device-independent quantum key distribution
Nathan Walk, Sara Hosseni, Jiao Geng +9
Nonlocal correlations, a longstanding foundational topic in quantum information, have recently found application as a resource for cryptographic tasks where not all devices are tru…
Gradient echo memory in an ultra-high optical depth cold atomic ensemble
B. M. Sparkes, J. Bernu, M. Hosseini +6
Quantum memories are an integral component of quantum repeaters - devices that will allow the extension of quantum key distribution to communication ranges beyond that permissible…