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13 papers · 2 filters
Rydberg-induced optical nonlinearities from a cold atomic ensemble trapped inside a cavity
Rajiv Boddeda, Imam Usmani, Erwan Bimbard +4
We experimentally characterize the optical nonlinear response of a cold atomic medium placed inside an optical cavity, and excited to Rydberg states. The excitation to S and D Rydb…
Factoring Safe Semiprimes with a Single Quantum Query
Frédéric Grosshans, Thomas Lawson, François Morain +1
Shor's factoring algorithm (SFA), by its ability to efficiently factor large numbers, has the potential to undermine contemporary encryption. At its heart is a process called order…
Towards a spin-ensemble quantum memory for superconducting qubits
C. Grezes, Y. Kubo, B. Julsgaard +15
This article reviews efforts to build a new type of quantum device, which combines an ensemble of electronic spins with long coherence times, and a small-scale superconducting quan…
Counterdiabatic driving in spin squeezing and Dicke state preparation
Tomáš Opatrný, Hamed Saberi, Etienne Brion +1
A method is presented to transfer a system of two-level atoms from a spin coherent state to a maximally spin squeezed Dicke state, relevant for quantum metrology and quantum inform…
A spectral hole memory for light at the single photon level
Kutlu Kutluer, María Florencia Pascual-Winter, Julian Dajczgewand +4
We demonstrate a solid state spin-wave optical memory based on stopped light in a spectral hole. A long lived narrow spectral hole is created by optical pumping in the inhomogeneou…
Coherent population trapping of a single nuclear spin under ambient conditions
P. Jamonneau, G. Hétet, A. Dréau +2
Coherent control of quantum systems has far-reaching implications in quantum engineering. In this context, coherent population trapping (CPT) involving dark resonances has played a…