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Deterministic Down-Converter and Continuous Photon-Pair Source within the Bad-Cavity Limit
Yue Chang1, Alejandro González-Tudela1, Carlos Sánchez Muñoz1,2
1Max-Planck Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany.
Physical Review Letters
|November 26, 2016
Summary
This study presents a cavity quantum electrodynamics setup for generating photon pairs, acting as a deterministic single-photon down-converter or an optimal two-photon source for quantum technologies.
Area of Science:
- Quantum optics
- Quantum information science
- Solid-state physics
Background:
- N-photon sources are crucial for advancing quantum technologies.
- Precise control over photon generation is a key challenge.
Purpose of the Study:
- To propose and characterize a cavity quantum electrodynamics setup for generating photon pairs.
- To identify operational regimes for deterministic single-photon conversion and optimal two-photon generation.
Main Methods:
- Utilizing cavity quantum electrodynamics.
- Employing scattering and master equation formalisms for system characterization.
- Proposing a superconducting circuit implementation.
Main Results:
- Identified regimes for deterministic single-photon down-conversion and optimal two-photon generation under weak driving.
- Developed a physical criterion for antibunched two-photon sources.
- Demonstrated non-trivial quantum correlations between outgoing photons.
- Proposed a feasible superconducting circuit implementation.
Conclusions:
- The proposed system offers a controllable platform for generating photon pairs.
- The work advances the development of N-photon sources for quantum applications.
- The setup is extendable for deterministic conversion of single photons into N photons.
