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Related Experiment Video

Updated: May 3, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

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Manipulating frequency-bin entangled states in cold atoms.

A Zavatta1, M Artoni2, D Viscor3

  • 11] Istituto Nazionale di Ottica (INO-CNR), Firenze, Italy [2] European Laboratory for Nonlinear Spectroscopy, Firenze, Italy.

Scientific Reports
|February 4, 2014
PubMed
Summary
This summary is machine-generated.

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Researchers developed a new method for optical manipulation of quantum entanglement using atomic interfaces. This technique efficiently controls frequency-entangled photons, crucial for quantum information encoding and multi-photon entanglement.

Area of Science:

  • Quantum Information Science
  • Atomic Physics
  • Quantum Optics

Background:

  • Optical manipulation of entanglement is key for quantum information encoding.
  • Harnessing the frequency degree of freedom offers unique advantages for quantum states.

Purpose of the Study:

  • To devise an efficient phase-resonant excitation mechanism for controlling frequency-entangled photons.
  • To demonstrate a method for achieving full control over narrowband single-photon two-mode frequency entangled states.

Main Methods:

  • Utilizing a phase-resonant excitation mechanism.
  • Employing an atomic interface, specifically cold Rubidium-87 (87Rb) atoms.
  • Preserving entanglement over a 100 μm length scale with fractional delays of unity.

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Related Experiment Videos

Last Updated: May 3, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.0K
Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.1K
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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Main Results:

  • Efficient achievement of full control over a narrowband single-photon two-mode frequency entangled state.
  • Demonstrated preservation of entanglement in a cold 87Rb atomic interface.
  • Established a mechanism for entanglement robust to degradation over microscale distances.

Conclusions:

  • The proposed scheme provides a basis for efficient multi-frequency and multi-photon entanglement.
  • This method offers advantages over polarization and spatial encoding for complex quantum states.
  • The technique is vital for advancing quantum information processing and communication.