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Complete conditions for entanglement transfer.

M Paternostro1, W Son, M S Kim

  • 1School of Mathematics and Physics, The Queen's University, Belfast BT7 1NN, United Kingdom.

Physical Review Letters
|June 1, 2004
PubMed
Summary
This summary is machine-generated.

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This study explores how to entangle two qubits using a correlated field. It reveals conditions for transferring quantum entanglement from the field to the qubits, highlighting the field

Area of Science:

  • Quantum Information Science
  • Quantum Optics
  • Condensed Matter Physics

Background:

  • Entanglement is a key quantum resource for quantum computing and communication.
  • Local environments and driving fields can affect qubit entanglement.
  • Understanding entanglement transfer is crucial for developing quantum technologies.

Purpose of the Study:

  • To investigate the conditions required for entangling two qubits.
  • To explore entanglement transfer from a continuous-variable correlated field to qubits.
  • To analyze the role of initial quantum correlations in the driving field.

Main Methods:

  • Theoretical analysis of two qubits interacting with local environments.
  • Modeling the system driven by a continuous-variable correlated field.

Related Experiment Videos

  • Examination of both dynamical and steady-state entanglement transfer.

    • Main Results:

    • Identified specific conditions for achieving qubit entanglement.
    • Demonstrated successful entanglement transfer from the driving field to the qubits.
    • Quantified the critical role of initial quantum correlations in the driving field for this transfer.

    Conclusions:

    • Quantum entanglement can be effectively transferred from a correlated field to qubits.
    • The initial quantum correlations within the driving field are essential for this process.
    • The proposed system is versatile and adaptable to various physical implementations.