Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Pascal Eich"'
Autor:
Matthias Bock, Pascal Eich, Stephan Kucera, Matthias Kreis, Andreas Lenhard, Christoph Becher, Jürgen Eschner
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)
Entanglement between photons and stationary quantum nodes is a fundamental resource for quantum communication, but typical transition wavelengths are far from the telecom band. Here, the authors deal with the problem using polarisation-independent, e
Externí odkaz:
https://doaj.org/article/b5a69a555c7d4df6b3dd3edb1455857a
Autor:
Pascal Eich, Matthias Bock, Matthias Kreis, Jürgen Eschner, Christoph Becher, Andreas Lenhard, Stephan Kucera
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)
Nature Communications
Nature Communications
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 atoms, color centers in diamond, or quantum dots. These systems have tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76a10ccaebcbdad0db57da0416b27ef5
https://doaj.org/article/b5a69a555c7d4df6b3dd3edb1455857a
https://doaj.org/article/b5a69a555c7d4df6b3dd3edb1455857a
Autor:
Andreas Lenhard, Matthias Kreis, Christoph Becher, Jürgen Eschner, Pascal Eich, Matthias Bock, Stephan Kucera
Publikováno v:
Quantum Information and Measurement (QIM) V: Quantum Technologies.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3951218a8b1e784a937e12783a9c914
https://doi.org/10.1364/qim.2019.t5a.74
https://doi.org/10.1364/qim.2019.t5a.74
Publikováno v:
Quantum Information and Measurement (QIM) V: Quantum Technologies.
We demonstrate direct mapping of an atomic qubit onto the polarization qubit of a single 854 nm photon and subsequent high-fidelity, polarization-preserving quantum frequency conversion to the low-loss 1310 nm telecom range for fiber-based quantum co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe5c4eb60c167c8f0b052c60fe73feed
https://doi.org/10.1364/qim.2019.s1d.2
https://doi.org/10.1364/qim.2019.s1d.2
Autor:
Jürgen Eschner, Matthias Kreis, Pascal Eich, Jan Arenskotter, Philipp Müller, Floriane Brunei, Stephan Kucera
Publikováno v:
Quantum Information and Measurement (QIM) V: Quantum Technologies.
Using a high-brightness narrowband source of 40Ca+-ion-resonant entangled photon pairs at 854 nm, we teleport a qubit from the D5/2 Zeeman sub-levels of the ion onto the polarization qubit of a single photon by heralded absorption.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a029902b16f614cbaa15d963835a17e
https://doi.org/10.1364/qim.2019.t5a.71
https://doi.org/10.1364/qim.2019.t5a.71
Publikováno v:
Conference on Lasers and Electro-Optics.
Using a high-brightness narrowband source of 40Ca+-ion-resonant entangled photon pairs at 854 nm, we teleport a qubit from the D 5/2 Zeeman sub-levels of the ion onto the polarization qubit of a single photon by heralded absorption.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2493516beeae8d14a611513ed77fc6d0
https://doi.org/10.1364/cleo_qels.2018.fm2h.6
https://doi.org/10.1364/cleo_qels.2018.fm2h.6
Autor:
Philipp Müller, Juergen Eschner, Pascal Eich, Jan Arenskotter, Stephan Kucera, Matthias Krels
Publikováno v:
Conference on Lasers and Electro-Optics.
Implementation of a quantum network with single atoms as quantum nodes and single photons as channels between the nodes requires their interfacing in receiver mode, whereby the photonic qubit is mapped onto the internal degrees of freedom of the atom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62d9a7f6bc52144b86c4f3512997055c
https://doi.org/10.1364/cleo_qels.2017.fm1e.4
https://doi.org/10.1364/cleo_qels.2017.fm1e.4
Publikováno v:
Physical Review A. 93
We present the implementation of a programmable atom-photon quantum interface, employing a single trapped $^{40}\mathrm{Ca}^{+}$ ion and single photons. Depending on its mode of operation, the interface serves as a bidirectional atom-photon quantum-s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3dfcb6a917f374b7e76830c5a393e09d
https://doi.org/10.1103/physreva.93.062348
https://doi.org/10.1103/physreva.93.062348
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 photon is heralded by its time-correlated partner generated in the SPDC p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b62da6f9beafefacc6aeb507de4e2e32
Autor:
Jürgen Eschner, Andreas Lenhard, José Brito, Matthias Bock, Pascal Eich, Christoph Becher, Philipp Müller, Stephan Kucera
We present, characterize, and apply the architecture of a photonic quantum interface between the near infrared and telecom spectral regions. A singly resonant optical parametric oscillator (OPO) operated below threshold, in combination with external
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::911cae7d273e706343b942e4da4ad1ca