Non-classical light from superconducting resonators coupled to voltage-biased Josephson junctions

Bj\"orn Kubala; Joachim Ankerhold; Vera Gramich

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Non-classical light from superconducting resonators coupled to voltage-biased Josephson junctions

Björn Kubala, Vera Gramich, Joachim Ankerhold

Mesoscale and Nanoscale Physics · Submitted 24 Apr 2014

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim Here, we concentrate on the emission process and show that due to the inherent nonlinearity of the Josephson junction tunneling Cooper-pairs can create a variety of non-classical states of light.

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arXiv ID1404.6259 (version 1)

Pith IDO6NO54PQ, Pith's permanent record of this paper and its review

CitationBj\"orn Kubala, Joachim Ankerhold, Vera Gramich. "Non-classical light from superconducting resonators coupled to voltage-biased Josephson junctions." arXiv:1404.6259 (2014). https://pith.science/paper/O6NO54PQ

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What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.18 · human participants 0.01 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.12 · compares with prior results 0.05 · mentions code or data availability 0.02.

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The interplay of the tunneling transfer of charges and the emission and absorption of light can be investigated in a set-up, where a voltage-biased Josephson junction is placed in series to a microwave cavity. Here, we concentrate on the emission process and show that due to the inherent nonlinearity of the Josephson junction tunneling Cooper-pairs can create a variety of non-classical states of light. Depending on experimental parameters and tuning the device can be described by effective Hamiltonians, indicating specific photon creation mechanisms which lead to strongly bunched or anti-bunched light emission. We derive explicit analytical expressions for the photon correlation function $g^{(2)}(\tau=0)$ for these different processes and investigate their full crossover numerically. Photon distribution functions show squeezing and other interesting non-Poissonian behavior.

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#	sentence	role	the authors' own work	states the main conclusion	strength
s0	The interplay of the tunneling transfer of charges and the emission and absorption of light can be investigated in a set-up, where a voltage-biased Josephson junction is placed in series to a microwave cavity.	background 0.92	0.09	0.03	hedged possibility 0.54
s1	Here, we concentrate on the emission process and show that due to the inherent nonlinearity of the Josephson junction tunneling Cooper-pairs can create a variety of non-classical states of light.	contribution 0.85	0.93	0.72	asserted 1.00
s2	Depending on experimental parameters and tuning the device can be described by effective Hamiltonians, indicating specific photon creation mechanisms which lead to strongly bunched or anti-bunched light emission.	result 0.46	0.51	0.22	hedged possibility 0.86
s3	We derive explicit analytical expressions for the photon correlation function $g^{(2)}(\tau=0)$ for these different processes and investigate their full crossover numerically.	method 0.52	0.96	0.09	asserted 0.99
s4	Photon distribution functions show squeezing and other interesting non-Poissonian behavior.	result 1.00	0.86	0.19	asserted 1.00

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 0.98.

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Original abstract

The interplay of the tunneling transfer of charges and the emission and absorption of light can be investigated in a set-up, where a voltage-biased Josephson junction is placed in series to a microwave cavity. Here, we concentrate on the emission process and show that due to the inherent nonlinearity of the Josephson junction tunneling Cooper-pairs can create a variety of non-classical states of light. Depending on experimental parameters and tuning the device can be described by effective Hamiltonians, indicating specific photon creation mechanisms which lead to strongly bunched or anti-bunched light emission. We derive explicit analytical expressions for the photon correlation function $g^{(2)}(\tau=0)$ for these different processes and investigate their full crossover numerically. Photon distribution functions show squeezing and other interesting non-Poissonian behavior.

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4 arXiv papers cite this in 10 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 7 sentences without a confident label

Uses its method or tool 1 paper

We proceed following the approach in Refs. [ref] .

Josephson photonics with a two-mode superconducting circuit · Rotating wave approximation · 0.99

Cites it as background 2 papers

For superconducting devices, non-linearities based on the Josephson effect have been proposed as a way to create squeezed photon distributions [ref] .

Creation of a squeezed photon distribution using artificial atoms with broken inversion symmetry · Introduction · 0.81
Over the last years, a variety of different experimental realizations [ref] and theoretical investigations [ref] have been dedicated to the continuous emission of photons into a cavity mode by the Cooper-pair (CP) current across a dc-biased Josephson junction (JJ).

Time-resolved statistics of nonclassical light in Josephson photonics · Introduction · 0.94

What it cites · 1 sentence without a confident label

Cites as background 1 paper

One class of systems are semi-conductor or carbon-nanotube double quantum dots capacitatively coupled to a 1d-resonator and operated in the Coulomb blockade regime [ref] .

Photon Emission from a Cavity-Coupled Double Quantum Dot · Introduction · 0.99

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