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Published on: August 18, 2017
Heralded entanglement between widely separated atoms.
Julian Hofmann1, Michael Krug, Norbert Ortegel
1Fakultät für Physik, Ludwig-Maximilians-Universität München, München, Germany.
Researchers created heralded entanglement between two distant single rubidium-87 atoms. This demonstrates a key resource for quantum communication and fundamental quantum mechanics tests.
Area of Science:
- Quantum Physics
- Quantum Information Science
Background:
- Quantum entanglement is a fundamental quantum mechanics phenomenon.
- Entangled particles exhibit correlations inexplicable by classical statistics.
- Heralded entanglement generation is crucial for quantum communication and quantum information science.
Purpose of the Study:
- To demonstrate heralded entanglement between two distant single atoms.
- To establish a viable resource for quantum information science.
- To enable fundamental tests of quantum mechanics.
Main Methods:
- Trapping two single rubidium-87 atoms independently.
- Maintaining atomic separation over 20 meters.
- Creating and analyzing heralded entanglement between atomic spins.
Main Results:
- Successful creation and analysis of heralded entanglement.
- Demonstrated entanglement between two single rubidium-87 atoms 20 meters apart.
- Confirmed correlations beyond classical explanations.
Conclusions:
- The study validates heralded entanglement as an integral resource.
- The results support the viability of long-distance quantum communication.
- The findings contribute to fundamental tests of quantum mechanics.
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