Evidence map›Paper›PMID 41353224›Full record

ArticleNature communications2025

Valley splitting correlations across a silicon quantum well containing germanium.

Jonathan C Marcks, Emily Eagen, Emma C Brann, Merritt P Losert, Talise Oh, J Reily, Christopher S Wang, Daniel Keith, Fahd A Mohiyaddin, Florian Luthi and 5 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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.

Jonathan C MarcksQ-NEXT, Argonne National Laboratory, Lemont, IL, USA. jmarcks@anl.gov.ORCID http://orcid.org/0000-0002-6162-8091
Emily EagenDepartment of Physics, University of Wisconsin-Madison, Madison, WI, USA.ORCID http://orcid.org/0009-0004-3544-344X
Emma C BrannDepartment of Physics, University of Wisconsin-Madison, Madison, WI, USA.ORCID http://orcid.org/0009-0009-4923-1102
Merritt P LosertDepartment of Physics, University of Wisconsin-Madison, Madison, WI, USA.ORCID http://orcid.org/0000-0002-8001-0326
Talise OhDepartment of Physics, University of Wisconsin-Madison, Madison, WI, USA.
J ReilyMaterials Science Division, Argonne National Laboratory, Lemont, IL, USA.ORCID http://orcid.org/0009-0006-6660-3973
Christopher S WangQ-NEXT, Argonne National Laboratory, Lemont, IL, USA.
Daniel KeithIntel Technology Research, Intel Corporation, Hillsboro, OR, USA.
Fahd A MohiyaddinIntel Technology Research, Intel Corporation, Hillsboro, OR, USA.
Florian LuthiIntel Technology Research, Intel Corporation, Hillsboro, OR, USA.
Matthew J CurryIntel Technology Research, Intel Corporation, Hillsboro, OR, USA.ORCID http://orcid.org/0000-0001-9352-5727
Jiefei ZhangQ-NEXT, Argonne National Laboratory, Lemont, IL, USA.ORCID http://orcid.org/0000-0002-7329-3110
F Joseph HeremansQ-NEXT, Argonne National Laboratory, Lemont, IL, USA.ORCID http://orcid.org/0000-0003-3337-7958
Mark FriesenDepartment of Physics, University of Wisconsin-Madison, Madison, WI, USA.ORCID http://orcid.org/0000-0003-2878-2844
M A ErikssonDepartment of Physics, University of Wisconsin-Madison, Madison, WI, USA.ORCID http://orcid.org/0000-0002-3130-9735

Funding

United States Department of Defense | United States Army | U.S. Army Research, Development and Engineering Command | Army Research Office (ARO) W911NF-22-1-0090United States Department of Defense | United States Army | U.S. Army Research, Development and Engineering Command | Army Research Office (ARO) W911NF-23-1-0110
6 · The paper itself

Abstract

Quantum dots in SiGe/Si/SiGe heterostructures host coherent electron spin qubits, which are promising for future quantum computers. The silicon quantum well hosts near-degenerate electron valley states, creating a low-lying excited state that is known to reduce spin qubit readout and control fidelity. The valley energy splitting is dominated by the microscopic disorder in the SiGe alloy and at the Si/SiGe interfaces, and while Si devices are compatible with large-scale semiconductor manufacturing, achieving a uniformly large valley splitting energy across a many-qubit device spanning mesoscopic distances is an outstanding challenge. In this work we study valley splitting variations in a 1D quantum dot array, formed in a Si

Identifiers

PMID41353224
PMCPMC12727835

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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.