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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Exact optimal control of photon blockade with weakly nonlinear coupled cavities
Optics Express
|December 25, 2015
Summary
We demonstrate controllable photon blockade in coupled cavities using Kerr nonlinear material. This quantum interference effect enables flexible manipulation for quantum information processing and optical devices.
Area of Science:
- Quantum Optics
- Nonlinear Optics
- Quantum Information Science
Background:
- Photon blockade is crucial for generating single photons.
- Coupled cavity systems offer tunable optical properties.
- Kerr nonlinear materials enable strong light-matter interactions.
Purpose of the Study:
- To propose and analyze a scheme for photon blockade in coupled Kerr nonlinear cavities.
- To identify optimal conditions for strong photon antibunching.
- To explore controllable aspects of photon blockade via driving fields.
Main Methods:
- Analytical derivation of optimal conditions for photon blockade.
- Numerical simulations to validate analytical findings.
- Investigation of quantum interference effects.
Main Results:
- Exact optimal conditions for strong photon antibunching were derived and confirmed numerically.
- Controllable conventional and unconventional photon blockades were achieved by tuning driving fields.
- Unconventional photon blockade attributed to quantum interference preventing two-photon excitation.
Conclusions:
- The proposed scheme provides a flexible platform for coherent manipulation of photon blockade.
- Results show potential for applications in quantum information processing and quantum optical devices.
- Demonstrated control over photon statistics under optimal conditions.
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