Probing the ladder of dressed states and nonclassical light generation in quantum dot-cavity QED

TL;DR

This paper explores photon-induced tunneling in a quantum dot-cavity system, demonstrating how it can generate specific photon states and revealing the Jaynes-Cummings ladder through photon statistics measurements.

Contribution

It provides experimental insights into photon tunneling phenomena and the generation of nonclassical light in quantum dot-cavity systems, highlighting the Jaynes-Cummings model's signatures.

Findings

Observation of photon-induced tunneling as a function of laser power and frequency

Experimental signature of the second rung of the Jaynes-Cummings ladder

Generation of photon states predominantly in a specific Fock state

Abstract

We investigate the photon induced tunneling phenomena in a photonic crystal cavity containing a strongly coupled quantum dot and describe how this tunneling can be used to generate photon states consisting mainly of a particular Fock state. Additionally, we study experimentally the photon-induced tunneling as a function of excitation laser power and frequency and show the signature of second rung of the Jaynes-Cummings Hamiltonian in the observed photon-statistics.