Time-resolved statistics of nonclassical light in Josephson photonics
| Autor: | Bjoern Kubala, Vera Gramich, Joachim Ankerhold, Simon Dambach |
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| Rok vydání: | 2015 |
| Předmět: |
Josephson effect
Quantum optics Physics Quantum Physics Photon Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Superconductivity FOS: Physical sciences Condensed Matter Physics Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Electronic Optical and Magnetic Materials Superconductivity (cond-mat.supr-con) Correlation function Quantum mechanics Statistics Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Nonclassical light Cooper pair Quantum Physics (quant-ph) Quantum tunnelling Microwave cavity |
| DOI: | 10.48550/arxiv.1506.05626 |
| Popis: | The interplay of the tunneling transfer of charges and the emission and absorption of light can be investigated in a setup, where a voltage-biased Josephson junction is connected in series with a microwave cavity. We focus here on the emission processes of photons and analyze the underlying time-dependent statistics using the second-order correlation function $g^{(2)}(\tau)$ and the waiting-time distribution $w(\tau)$. Both observables highlight the crossover from a coherent light source to a single-photon source. Due to the nonlinearity of the Josephson junction, tunneling Cooper pairs can create a great variety of non-classical states of light even at weak driving. Analytical results for the weak driving as well as the classical regime are complemented by a numerical treatment for the full nonlinear case. We also address the question of possible relations between $g^{(2)}(\tau)$ and $w(\tau)$ as well as the specific information which is provided by each of them. Comment: 11 pages, 6 figures |
| Databáze: | OpenAIRE |
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