Details
| Original language | English |
|---|---|
| Pages (from-to) | 416-418 |
| Number of pages | 3 |
| Journal | Science |
| Volume | 360 |
| Issue number | 6387 |
| Publication status | Published - 27 Apr 2018 |
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.
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In: Science, Vol. 360, No. 6387, 27.04.2018, p. 416-418.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Entanglement between two spatially separated atomic modes
AU - Lange, Karsten
AU - Peise, Jan
AU - Lücke, Bernd
AU - Kruse, Ilka
AU - Vitagliano, Giuseppe
AU - Apellaniz, Iagoba
AU - Kleinmann, Matthias
AU - Tóth, Géza
AU - Klempt, Carsten
N1 - Funding information: C.K. thanks M. Cramer for the discussion at the 589. Heraeus seminar that led to the initial idea for the experiments. C.K. thanks A. Smerzi, L. Santos, and W. Ertmer for regular inspiring discussions and a review of the manuscript. Funding: This work was supported by the European Union (European Research Council Starting Grant 258647/GEDENTQOPT, CHIST-ERA QUASAR, COST Action CA15220, European Research Council Consolidator Grant 683107/TempoQ and QuantERA CEBBEC); the Spanish Ministry of Economy, Industry and Competitiveness and the European Regional Development Fund FEDER through grant FIS2015-67161-P (MINECO/FEDER); the Basque government (project IT986-16); the National Research, Development, and Innovation Office (NKFIH) (grant K124351); the Deutsche Forschungsgemeinschaft (DFG) (Forschungsstipendium KL 2726/2-1 and project KL2421/2-1); the FQXi (grant FQXi-RFP-1608); and the Austrian Science Fund (FWF) through the START project Y879-N27. We also acknowledge support from DFG through RTG 1729 and CRC 1227 (DQ-mat), project A02.
PY - 2018/4/27
Y1 - 2018/4/27
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85045989028&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1708.02480
DO - 10.48550/arXiv.1708.02480
M3 - Article
C2 - 29700263
AN - SCOPUS:85045989028
VL - 360
SP - 416
EP - 418
JO - Science
JF - Science
SN - 0036-8075
IS - 6387
ER -