Evidence map›Paper›PMID 31748501›Full record

ArticleNature communications2019

Observation of quantum many-body effects due to zero point fluctuations in superconducting circuits.

Sébastien Léger, Javier Puertas-Martínez, Karthik Bharadwaj, Rémy Dassonneville, Jovian Delaforce, Farshad Foroughi, Vladimir Milchakov, Luca Planat, Olivier Buisson, Cécile Naud and 4 more

Abstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Heat Bath in a Quantum Circuit.Entropy (Basel, Switzerland) · 2024
    Article
  5. Article
  6. Soliton confinement in a quantum circuit.Nature communications · 2023
    Article
  7. Article
  8. Article
  9. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Sébastien LégerUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France.
Javier Puertas-MartínezUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France.
Karthik BharadwajUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France.
Rémy DassonnevilleUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France.
Jovian DelaforceUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France.
Farshad ForoughiUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France.
Vladimir MilchakovUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France.
Luca PlanatUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France.
Olivier BuissonUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France.
Cécile NaudUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France.
Wiebke Hasch-GuichardUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France.
Serge FlorensUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France.
Izak SnymanMandelstam Institute for Theoretical Physics, School of Physics, University of the Witwatersrand, Johannesburg, South Africa.
Nicolas RochUniversité Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France. nicolas.roch@neel.cnrs.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Electromagnetic fields possess zero point fluctuations which lead to observable effects such as the Lamb shift and the Casimir effect. In the traditional quantum optics domain, these corrections remain perturbative due to the smallness of the fine structure constant. To provide a direct observation of non-perturbative effects driven by zero point fluctuations in an open quantum system we wire a highly non-linear Josephson junction to a high impedance transmission line, allowing large phase fluctuations across the junction. Consequently, the resonance of the former acquires a relative frequency shift that is orders of magnitude larger than for natural atoms. Detailed modeling confirms that this renormalization is non-linear and quantum. Remarkably, the junction transfers its non-linearity to about thirty environmental modes, a striking back-action effect that transcends the standard Caldeira-Leggett paradigm. This work opens many exciting prospects for longstanding quests such as the tailoring of many-body Hamiltonians in the strongly non-linear regime, the observation of Bloch oscillations, or the development of high-impedance qubits.

Identifiers

PMID31748501
PMCPMC6868017

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.