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Entangling Two Rydberg Superatoms via Heralded Storage
Zi-Ye An1, Bo-Wei Lu1, Jun Li1
1University of Science and Technology of China, University of Science and Technology of China, University of Science and Technology of China, Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences, Hefei 230026, China and CAS Center for Excellence in Quantum Information and Quantum Physics, Hefei 230026, China; Hefei National Laboratory, Hefei 230088, China.
Researchers demonstrate heralded photon storage using Rydberg superatoms, a novel approach for quantum networks. This method efficiently stores photons and entangles remote atomic ensembles, advancing quantum computing and communication.
Area of Science:
- Quantum Information Science
- Atomic, Molecular, and Optical Physics
Background:
- Heralded storage of photons is essential for quantum networks.
- Existing methods often rely on single atoms coupled to optical cavities.
Purpose of the Study:
- To experimentally realize heralded storage using a Rydberg superatom.
- To demonstrate entanglement between two remote Rydberg superatoms using this technique.
Main Methods:
- Utilizing a Rydberg superatom, a mesoscopic atomic ensemble in the strong blockade regime.
- Storing an input photon via electromagnetically induced transparency.
- Emitting a second photon conditioned on the success of the first photon's storage.
Main Results:
- Experimental realization of heralded storage in a Rydberg superatom.
- Efficient storage and heralded emission due to collective atomic enhancement.
- Successful entanglement of two remote Rydberg superatoms without an intermediate node.
Conclusions:
- Rydberg superatoms offer a promising platform for cavity-QED-like experiments.
- This method advances quantum network protocols and linear optical quantum computing.
- Demonstrates a new pathway for efficient remote entanglement generation.
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