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Logo: Institut für Quantenoptik/Leibniz Universität Hannover
Logo Leibniz Universität Hannover
Logo: Institut für Quantenoptik/Leibniz Universität Hannover
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Entanglement between spatially separated atomic modes

Measured density profile of an atomic cloud that is separated into a left and a right part. The entangled atoms are represented by connected spheres. The atoms acquire an orientation along the magnetic field (spin-up or spin-down) during the measurement.

Entanglement of indistinguishable particles transferred to the spatial degree of freedom

We have created entanglement in large ensembles of a few thousand indistinguishable atoms. The entanglement of indistinguishable particles cannot be measured directly, because the particle cannot be addressed.

In our recent publication "Entanglement between two spatially separated atomic modes", we split the atomic cloud into two spatially separated parts and prove entanglement between the two subensembles. The particle entanglement is validated using a novel entanglement criterion that we have developed together with the group Géza Tóth in Bilbao.

Publication: Entanglement between two spatially separated atomic modes  

Perspective: Split, but still attached

University press release: Wissenschaftler der Leibniz Universität Hannover erzielen Durchbruch für verbesserte Präzisionsmessungen und Informationsverarbeitung  


Press reports:

ORF (austrian): Tausendfacher Quantenspuk

phys.org: Researchers create a quantum entanglement between two physically separated ultra-cold atomic clouds

New Scientist: Entangled clouds of atoms are quantum record-breakers

Gizmodo: Spooky Experiments Bring Quantum Weirdness to Nearly Macroscopic Scales
The conversation: Scientists discover how to harness the power of quantum spookiness by entangling clouds of atoms
Science News: Split atom clouds get entangled in quantum tests

Innovations Reports: A quantum entanglement between two physically separated ultra-cold atomic clouds

Opli.net: A quantum entanglement between two physically separated ultra-cold atomic clouds

Science Daily: A quantum entanglement between two physically separated ultra-cold atomic clouds

Elhuyar (basque): Korapilatze kuantikoa sortu dute fisikoki bananduta zeuden bi Bose-Einstein kondentsaturen artean

Hungarian Academy of Science (hungarian): Kvantumösszefonódást sikerült létrehozni  

Naukas (spanish):  El entrelazamiento cuántico entre dos condensados de Bose-Einstein separados

Noticias de la Ciencia y la Tecnologia (spanish): Science publica un estudio sobre entrelazamiento cuántico en el que ha participado la UPV/EHU

El Diario Vasco (spanish): Science publica un experimento con participación vasca

elconfidential.com (spanish): Fisicos vascos experimentan con el entrelazamiento cuantico de atomos

인저리타임 (korean): 유령 같은 원격작용’, 다원자 덩어리에서도 확인되다