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A Rydberg/cavity QED apparatus for exploring polariton blockade

Alexandros Georgakopoulos, Albert Ryou, Ningyuan Jia +3 more

Bulletin of the American Physical SocietyJun 7, 20170 citations

Unconventional photon blockade in a photonic molecule containing a quantum dot

Xiang Cheng, Han Ye, Zhongyuan Yu

arXiv:1911.00366Superlattices and MicrostructuresMar 21, 20177 citations

Interacting Rydberg Polaritons for Photonic Quantum Logic

Steffen Schmidt, Daniel Tiarks, Thomas Stolz +2 more

Bulletin of the American Physical SocietyMay 29, 20180 citations

Polariton quantum blockade in a photonic dot

A. Verger, Cristiano Ciuti, Iacopo Carusotto

We investigate the quantum nonlinear dynamics of a resonantly excited photonic quantum dot embedding a quantum well in the strong exciton-photon coupling regime. Within a master equation approach, we study the polariton blockade effect due to polariton-polariton interactions as a function of the photonic dot geometry, spectral linewidths and energy detuning between quantum well exciton and confined photon mode. The second order coherence function ${g}^{(2)}(t,{t}^{\ensuremath{'}})$ and the photon antibunching are calculated for both continuous wave and pulsed excitations.We investigate the quantum nonlinear dynamics of a resonantly excited photonic quantum dot embedding a quantum well in the strong exciton-photon coupling regime. Within a master equation approach, we study the polariton blockade effect due to polariton-polariton interactions as a function of the photonic dot geometry, spectral linewidths and energy detuning between quantum well exciton and confined photon mode. The second order coherence function ${g}^{(2)}(t,{t}^{\ensuremath{'}})$ and the photon antibunching are calculated for both continuous wave and pulsed excitations.

arXiv:cond-mat/0511336Physical Review BMay 12, 2006244 citations

Strongly interacting photons in quantum dot cavity-QED

Andreas Reinhard, Thomas Volz, Ataç İmamoğlu

Here, we show unmistakable signatures of photon blockade in a strongly coupled single-quantum dot (QD) cavity system by demonstrating anti-bunching of photons upon pulsed resonant excitation of the lowest energy polariton state. When we tune the laser into two-photon resonance with the higher-lying polariton states, we observe strong bunching.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)May 1, 20110 citations

Controlling Rydberg atom-polariton interactions: from exceptional points to fast readout

Tamara Šumarac, Emily H. Qiu, Shai Tsesses +8 more

Rydberg atoms represent a platform underpinning many recent developments in quantum computation, simulation, sensing, and metrology. They further facilitate optical nonlinearity at the single-photon level when coupled to photons propagating in atomic clouds, which form collective atomic excitations called Rydberg polaritons, strongly interacting with each other. Here, we experimentally explore interactions between a Rydberg polariton in an atomic ensemble and a single, adjacent, Rydberg atom. We discover three different regimes of quantum dynamics corresponding to polariton blockade, coherent exchange, and probabilistic hopping, which are defined by their distinct transmission characteristics, with a transition through an exceptional point occurring between blockade and coherent exchange. We investigate the applications of such interactions for fast, non-destructive detection of Rydberg atoms and present proof-of-principle demonstrations for their potential application in nonlinear photonic networks.Rydberg atoms represent a platform underpinning many recent developments in quantum computation, simulation, sensing, and metrology. They further facilitate optical nonlinearity at the single-photon level when coupled to photons propagating in atomic clouds, which form collective atomic excitations called Rydberg polaritons, strongly interacting with each other. Here, we experimentally explore interactions between a Rydberg polariton in an atomic ensemble and a single, adjacent, Rydberg atom. We discover three different regimes of quantum dynamics corresponding to polariton blockade, coherent exchange, and probabilistic hopping, which are defined by their distinct transmission characteristics, with a transition through an exceptional point occurring between blockade and coherent exchange. We investigate the applications of such interactions for fast, non-destructive detection of Rydberg atoms and present proof-of-principle demonstrations for their potential application in nonlinear photonic networks.

physics.atom-phCross-listedarXiv:2601.06345Jan 13, 20260 citations

Rydberg Polariton Blockade in a 0D Photonic Quantum Dot

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