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Generation and Coherent Control of Pulsed Quantum Frequency Combs

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Published on: June 8, 2018

Unconditional Fock state generation using arbitrarily weak photonic nonlinearities.

Andrew Lingenfelter^1,2, David Roberts^1,2, A A Clerk¹

¹Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL 60637, USA.

Science Advances

|November 26, 2021

Summary

This summary is machine-generated.

We developed a new method to create single-photon states using weak nonlinearities in optical cavities. This technique works even with significant light loss and offers a distinct approach to photon generation.

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Area of Science:

Quantum Optics
Photonics

Background:

Generating single-photon states is crucial for quantum technologies.
Existing methods often struggle with weak nonlinearities or photonic loss.

Purpose of the Study:

To present a novel mechanism for deterministic single-photon Fock state generation.
To demonstrate a method effective even with extremely weak Kerr nonlinearities.

Main Methods:

Utilizing a single driven cavity with weak Kerr-type nonlinearities.
Employing standard linear and parametric drives compatible with various photonic platforms.

Main Results:

Deterministic generation of single-photon Fock states and photon-blockaded states.
Method effective for nonlinearities much smaller than photonic loss.
Generated states are non-Gaussian with sharp photon number cutoffs.

Conclusions:

This mechanism provides a robust way to generate non-Gaussian quantum states.
The approach is versatile and compatible with diverse photonic systems.
Offers a distinct alternative to unconventional photon blockade.