Two-Photon Blockade in an Atom-Driven Cavity QED System

Two-Photon Blockade in an Atom-Driven Cavity QED System

Photon blockade is a dynamical quantum-nonlinear effect in driven systems with an anharmonic energy ladder. For a single atom strongly coupled to an optical cavity, we show that atom driving gives a decisively larger optical nonlinearity than cavity driving. This enhances single-photon blockade and...

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Veröffentlicht in:Physical review letters 2017-03, Vol.118 (13), p.133604-133604, Article 133604
Hauptverfasser: Hamsen, Christoph, Tolazzi, Karl Nicolas, Wilk, Tatjana, Rempe, Gerhard
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Sprache:eng
Schlagworte:
Absorption
Dynamical systems
Holes
Ladders
Nonlinear dynamics
Photons
Quantum electrodynamics
Signatures
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container_title Physical review letters
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creator Hamsen, Christoph
Tolazzi, Karl Nicolas
Wilk, Tatjana
Rempe, Gerhard
description Photon blockade is a dynamical quantum-nonlinear effect in driven systems with an anharmonic energy ladder. For a single atom strongly coupled to an optical cavity, we show that atom driving gives a decisively larger optical nonlinearity than cavity driving. This enhances single-photon blockade and allows for the implementation of two-photon blockade where the absorption of two photons suppresses the absorption of further photons. As a signature, we report on three-photon antibunching with simultaneous two-photon bunching observed in the light emitted from the cavity. Our experiment constitutes a significant step towards multiphoton quantum-nonlinear optics.
doi_str_mv 10.1103/PhysRevLett.118.133604
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source American Physical Society Journals
subjects Absorption
Dynamical systems
Holes
Ladders
Nonlinear dynamics
Photons
Quantum electrodynamics
Signatures
title Two-Photon Blockade in an Atom-Driven Cavity QED System
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