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Related Experiment Videos

Entanglement of remote atomic qubits.

D N Matsukevich1, T Chanelière, S D Jenkins

  • 1School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA.

Physical Review Letters
|February 21, 2006
PubMed
Summary
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Scientists entangled two remote atomic qubits using a photon intermediary. This demonstrates a novel method for quantum information transfer and entanglement distribution over distances.

Area of Science:

  • Quantum Information Science
  • Quantum Communication
  • Atomic Physics

Background:

  • Entanglement is a key resource for quantum information processing.
  • Distributing entanglement between remote quantum systems is crucial for quantum networks.
  • Previous methods for remote entanglement have limitations in fidelity or scalability.

Purpose of the Study:

  • To demonstrate entanglement between two remote atomic qubits.
  • To develop a method for transferring entanglement between matter and light.
  • To advance the capabilities of quantum information science.

Main Methods:

  • Generating an entangled state between an atomic qubit and a single photon.
  • Transmitting the photon via optical fiber to a remote location.

Related Experiment Videos

  • Converting the photon into a remote atomic qubit.
  • Inferring entanglement via local quantum state transfer and Bell inequality violation measurements.

    • Main Results:

    • Successfully achieved entanglement between two remote atomic qubits.
    • Demonstrated reversible, coherent transfer of entanglement between matter and light.
    • Experimentally determined key parameters related to the entanglement fidelity.

    Conclusions:

    • The reported method enables entanglement of remote atomic qubits.
    • This work represents a significant advance in quantum information science and quantum networking.
    • The technique offers a promising route for scalable quantum information transfer.