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Induced Electric Dipoles

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Related Experiment Video

Updated: Jun 14, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Communications: Entanglement switch for dipole arrays.

Qi Wei1, Sabre Kais, Yong P Chen

  • 1Department of Chemistry and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA.

The Journal of Chemical Physics
|April 8, 2010
PubMed
Summary

Researchers developed a novel entanglement switch using electric dipoles. This switch allows tunable quantum entanglement control in qubit systems through electric field manipulation and coupling strength adjustments.

Related Experiment Videos

Last Updated: Jun 14, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Area of Science:

  • Quantum Information Science
  • Atomic, Molecular, and Optical (AMO) Physics
  • Condensed Matter Physics

Background:

  • Quantum entanglement is a fundamental resource for quantum information processing.
  • Controlling and tuning entanglement is crucial for developing robust quantum technologies.
  • Existing methods for entanglement control often face limitations in scalability and precision.

Purpose of the Study:

  • To propose a novel entanglement switch architecture for qubits.
  • To investigate the tunability and controllability of pairwise entanglement.
  • To explore the feasibility of implementing this switch in various qubit arrangements.

Main Methods:

  • Utilizing electric dipoles as qubits, aligned by an external electric field.
  • Employing electric dipole-dipole interactions for qubit coupling.
  • Analyzing entanglement control via the ratio of Rabi frequency and dipole-dipole coupling strength.

Main Results:

  • Demonstrated that pairwise entanglement can be precisely tuned and controlled.
  • Showcased the tunability across one, two, and three-dimensional qubit arrangements.
  • Established a direct relationship between coupling parameters and entanglement levels.

Conclusions:

  • The proposed entanglement switch offers a new pathway for manipulating quantum entanglement.
  • The system's feasibility for practical implementation is supported by theoretical analysis.
  • This work provides a foundation for advanced quantum control and scalable quantum computing architectures.