Entanglement between two spatially separated atomic modes

verfasst von
Karsten Lange, Jan Peise, Bernd Lücke, Ilka Kruse, Giuseppe Vitagliano, Iagoba Apellaniz, Matthias Kleinmann, Géza Tóth, Carsten Klempt
Abstract

Modern quantum technologies in the fields of quantum computing, quantum simulation, and quantum metrology require the creation and control of large ensembles of entangled particles. In ultracold ensembles of neutral atoms, nonclassical states have been generated with mutual entanglement among thousands of particles. The entanglement generation relies on the fundamental particle-exchange symmetry in ensembles of identical particles, which lacks the standard notion of entanglement between clearly definable subsystems. Here, we present the generation of entanglement between two spatially separated clouds by splitting an ensemble of ultracold identical particles prepared in a twin Fock state. Because the clouds can be addressed individually, our experiments open a path to exploit the available entangled states of indistinguishable particles for quantum information applications.

Organisationseinheit(en)
Institut für Quantenoptik
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)
Externe Organisation(en)
Austrian Academy of Sciences
Universidad del País Vasco (UPV)
Universität Siegen
Ikerbasque, the Basque Foundation for Science
Hungarian Academy of Sciences
Typ
Artikel
Journal
Science
Band
360
Seiten
416-418
Anzahl der Seiten
3
ISSN
0036-8075
Publikationsdatum
27.04.2018
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Allgemein
Elektronische Version(en)
https://doi.org/10.48550/arXiv.1708.02480 (Zugang: Offen)
https://doi.org/10.1126/science.aao2035 (Zugang: Geschlossen)