203 citations · 337 across the 6 of their papers we have counts for
6 papers · 1 filter
High-fidelity entanglement between a trapped ion and a telecom photon via quantum frequency conversion
Matthias Bock, Pascal Eich, Stephan Kucera +4
Entanglement between a stationary quantum system and a flying qubit is an essential ingredient of a quantum-repeater network. It has been demonstrated for trapped ions, trapped ato…
Programmable atom-photon quantum interface
Christoph Kurz, Pascal Eich, Michael Schug +2
We present the implementation of a programmable atom-photon quantum interface, employing a single trapped Ca ion and single photons. Depending on its mode of operation,…
Doubly-heralded single-photon absorption by a single atom
José Brito, Stephan Kucera, Pascal Eich +2
We report on a single-photon-to-single-atom interface, where a single photon generated by Spontaneous Parametric Down Conversion (SPDC) is absorbed by a single trapped ion. The pho…
Telecom-heralded single photon absorption by a single atom
Andreas Lenhard, Matthias Bock, Stephan Kucera +5
We present, characterize, and apply a photonic quantum interface between the near infrared and telecom spectral regions. A singly resonant optical parametric oscillator (OPO) opera…
Quantum interference in the absorption and emission of single photons by a single ion
Michael Schug, Christoph Kurz, Pascal Eich +3
We investigate quantum beats in the arrival-time distribution of single photons from a single trapped Ca ion, revealing their fundamentally different physical origins in…
Experimental protocol for high-fidelity heralded photon-to-atom quantum state transfer
Christoph Kurz, Michael Schug, Pascal Eich +3
A quantum network combines the benefits of quantum systems regarding secure information transmission and calculational speed-up by employing quantum coherence and entanglement to s…