Evidence map›Paper›PMID 35902574›Full record

ArticleNature communications2022

Simulating hyperbolic space on a circuit board.

Patrick M Lenggenhager, Alexander Stegmaier, Lavi K Upreti, Tobias Hofmann, Tobias Helbig, Achim Vollhardt, Martin Greiter, Ching Hua Lee, Stefan Imhof, Hauke Brand and 5 more

Abstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Hyperbolic Topological Quantum Sources.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  6. Topolectrical space-time circuits.Nature communications · 2025
    Article
  7. Article
  8. Observation of a Higher-Order End Topological Insulator in a Real Projective Lattice.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  9. Hyperbolic photonic topological insulators.Nature communications · 2024
    Article
  10. Article
  11. 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

15 authors.

Patrick M Lenggenhager *Condensed Matter Theory Group, Paul Scherrer Institute, 5232, Villigen PSI, Switzerland.
Alexander Stegmaier *Institut für Theoretische Physik und Astrophysik, Universität Würzburg, 97074, Würzburg, Germany.
Lavi K UpretiInstitut für Theoretische Physik und Astrophysik, Universität Würzburg, 97074, Würzburg, Germany.ORCID http://orcid.org/0000-0002-1722-484X
Tobias HofmannInstitut für Theoretische Physik und Astrophysik, Universität Würzburg, 97074, Würzburg, Germany.ORCID http://orcid.org/0000-0002-1888-9464
Tobias HelbigInstitut für Theoretische Physik und Astrophysik, Universität Würzburg, 97074, Würzburg, Germany.ORCID http://orcid.org/0000-0003-1894-0183
Achim VollhardtDepartment of Physics, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland.ORCID http://orcid.org/0000-0002-4424-1127
Martin GreiterInstitut für Theoretische Physik und Astrophysik, Universität Würzburg, 97074, Würzburg, Germany.ORCID http://orcid.org/0000-0003-2008-4013
Ching Hua LeeDepartment of Physics, National University of Singapore, Singapore, 117551, Republic of Singapore.ORCID http://orcid.org/0000-0003-0690-3238
Stefan ImhofPhysikalisches Institut, Universität Würzburg, 97074, Würzburg, Germany.
Hauke BrandPhysikalisches Institut, Universität Würzburg, 97074, Würzburg, Germany.ORCID http://orcid.org/0000-0003-4209-2663
Tobias KießlingPhysikalisches Institut, Universität Würzburg, 97074, Würzburg, Germany.
Igor BoettcherDepartment of Physics, University of Alberta, Edmonton, AB, T6G 2E1, Canada.
Titus NeupertDepartment of Physics, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland. titus.neupert@uzh.ch.ORCID http://orcid.org/0000-0003-0604-041X
Ronny ThomaleInstitut für Theoretische Physik und Astrophysik, Universität Würzburg, 97074, Würzburg, Germany. rthomale@physik.uniwuerzburg.de.ORCID http://orcid.org/0000-0002-3979-8836
Tomáš BzdušekCondensed Matter Theory Group, Paul Scherrer Institute, 5232, Villigen PSI, Switzerland. tomas.bzdusek@psi.ch.

Funding

EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council) (ERC-StG-Neupert-757867-PARATOPSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (Swiss National Science Foundation) 185806
6 · The paper itself

Abstract

The Laplace operator encodes the behavior of physical systems at vastly different scales, describing heat flow, fluids, as well as electric, gravitational, and quantum fields. A key input for the Laplace equation is the curvature of space. Here we discuss and experimentally demonstrate that the spectral ordering of Laplacian eigenstates for hyperbolic (negatively curved) and flat two-dimensional spaces has a universally different structure. We use a lattice regularization of hyperbolic space in an electric-circuit network to measure the eigenstates of a 'hyperbolic drum', and in a time-resolved experiment we verify signal propagation along the curved geodesics. Our experiments showcase both a versatile platform to emulate hyperbolic lattices in tabletop experiments, and a set of methods to verify the effective hyperbolic metric in this and other platforms. The presented techniques can be utilized to explore novel aspects of both classical and quantum dynamics in negatively curved spaces, and to realise the emerging models of topological hyperbolic matter.

Identifiers

PMID35902574
PMCPMC9334621

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.