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Researcher Evidence Record

Alexander Romanenko

This bounded record lists 33 Pith paper rows and 0 imported work rows attributed to this corpus identity. The enumerated, non-disputed paper rows include quant-ph, physics.app-ph, cond-mat.mtrl-sci work dated 2008 to 2025. The record describes sources and coverage; it makes no judgment about the person.

Compiled coverage vector

Measured lane counts only. Not a trust score or person verdict.

Identity 2 canonical identity row plus typed public identifiers Pith papers 33 attributed paper rows in the Pith corpus, itemized below Imported works 0 imported works beyond the paper ledger Current reviews 5 of 33 papers carrying a current Pith review; presence, not outcome Sourced citations 11 of 33 works with a source-named citation count Coauthors 50 distinct coauthors across shared paper rows
Enumerated paper scope: 7 fields (quant-ph, physics.app-ph, cond-mat.mtrl-sci, +4 more) · 2008-2025 sources: authors, author_identifiers · paper_authors · author_works · current_verdicts · cited_works

A sourced case file for attributed work. It is neither a profile score nor a verdict about this researcher.

Attributed works

A bounded ledger from the Pith paper and imported-work queries. Counts and source confidence stay with each work.

  1. 2025 Pith paper

    Discovery of Niobium Hydride Precipitates in Superconducting Qubits

    cond-mat.supr-con provisional current review present

    paper citation record paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    9
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: a current Pith review exists.
    Citation counts
    • 0 external cited by from pith
    • 1 pith inbound references from cited_work_pith_inbound_counts
  2. 2025 Pith paper

    Squeezing enhanced sensing at an exceptional point

    quant-ph provisional current review present

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    5
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: a current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  3. 2025 Pith paper

    Ultracoherent superconducting cavity-based multiqudit platform with error-resilient control

    quant-ph provisional current review present

    paper citation record paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    28
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: a current Pith review exists.
    Citation counts
    • 0 external cited by from arxiv_reference
    • 7 pith inbound references from cited_work_pith_inbound_counts
  4. 2025 Pith paper

    Demonstrating magnetic field robustness and reducing temporal T1 noise in transmon qubits through magnetic field engineering

    quant-ph provisional current review present

    paper citation record paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    12
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: a current Pith review exists.
    Citation counts
    • 2 pith inbound references from cited_work_pith_inbound_counts
  5. 2025 Pith paper

    Identifying Materials-Level Sources of Performance Variation in Superconducting Transmon Qubits

    quant-ph provisional measured, no current review

    paper citation record paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    49
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    • 2 pith inbound references from cited_work_pith_inbound_counts
  6. 2024 Pith paper

    Loss tangent fluctuations due to two-level systems in superconducting microwave resonators

    quant-ph provisional current review present

    paper citation record paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    9
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: a current Pith review exists.
    Citation counts
    • 1 pith inbound references from cited_work_pith_inbound_counts
  7. 2024 Pith paper

    Enhanced Superconducting Qubit Performance Through Ammonium Fluoride Etch

    cond-mat.mtrl-sci provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    18
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  8. 2024 Pith paper

    Evaluating radiation impact on transmon qubits in above and underground facilities

    quant-ph provisional measured, no current review

    paper citation record paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    18
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    • 2 pith inbound references from cited_work_pith_inbound_counts
  9. 2024 Pith paper

    Crosstalk-Robust Quantum Control in Multimode Bosonic Systems

    quant-ph provisional measured, no current review

    paper citation record paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    11
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    • 1 pith inbound references from cited_work_pith_inbound_counts
  10. 2023 Pith paper

    Fast ZZ-Free Entangling Gates for Superconducting Qubits Assisted by a Driven Resonator

    quant-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    5
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  11. 2023 Pith paper

    Quasiparticle spectroscopy in technologically-relevant niobium using London penetration depth measurements

    cond-mat.supr-con provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    11
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  12. 2023 Pith paper

    Phase-controlled improvement of photon lifetime in coupled superconducting cavities

    quant-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    11
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  13. 2023 Pith paper

    First Direct Observation of Nanometer size Hydride Precipitations on Superconducting Niobium

    cond-mat.mtrl-sci provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    8
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  14. 2023 Pith paper

    Systematic Improvements in Transmon Qubit Coherence Enabled by Niobium Surface Encapsulation

    quant-ph provisional measured, no current review

    paper citation record paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    39
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    • 1 pith inbound references from cited_work_pith_inbound_counts
  15. 2023 Pith paper

    Selective thermal evolution of native oxide layer in Nb and Nb3Sn-coated SRF grade Nb: An in-situ angular XPS study

    cond-mat.mtrl-sci provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    7
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  16. 2023 Pith paper

    Completely Positive Map for Noisy Driven Quantum Systems Derived by Keldysh Expansion

    quant-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    4
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  17. 2023 Pith paper

    Millikelvin measurements of permittivity and loss tangent of lithium niobate

    quant-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    6
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  18. 2022 Pith paper

    Deepest sensitivity to wavelike dark photon dark matter with superconducting radio frequency cavities

    hep-ex provisional measured, no current review

    paper citation record paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    12
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    • 4 pith inbound references from cited_work_pith_inbound_counts
  19. 2022 Pith paper

    High-efficiency microwave-optical quantum transduction based on a cavity electro-optic superconducting system with long coherence time

    quant-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    5
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  20. 2022 Pith paper

    Stabilizing and improving qubit coherence by engineering noise spectrum of two-level systems

    quant-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    4
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  21. 2022 Pith paper

    High-Order Qubit Dephasing at Sweet Spots by Non-Gaussian Fluctuators: Symmetry Breaking and Floquet Protection

    quant-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    4
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  22. 2022 Pith paper

    Quantum computing hardware for HEP algorithms and sensing

    quant-ph provisional measured, no current review

    paper citation record paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    30
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    • 1 pith inbound references from cited_work_pith_inbound_counts
  23. 2022 Pith paper

    Developing a Chemical and Structural Understanding of the Surface Oxide in a Niobium Superconducting Qubit

    cond-mat.mes-hall provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    14
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  24. 2021 Pith paper

    Internal Friction Measures to Study Precipitates Formation in EP and N-Doped Bulk Nb for SRF Applications

    physics.app-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    3
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  25. 2021 Pith paper

    TOF-SIMS Analysis of Decoherence Sources in Nb Superconducting Resonators

    physics.app-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    9
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  26. 2021 Pith paper

    Oxygen Vacancies in Niobium Pentoxide as a Source of Two-Level System Losses in Superconducting Niobium

    physics.app-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    4
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  27. 2021 Pith paper

    Discovery of Nb hydride precipitates in superconducting qubits

    quant-ph provisional measured, no current review

    paper citation record paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    6
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    • 3 external cited by from pith
    • 1 pith inbound references from cited_work_pith_inbound_counts
  28. 2021 Pith paper

    Measurement of the Low-temperature Loss Tangent of High-resistivity Silicon with a High Q-factor Superconducting Resonator

    quant-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    5
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  29. 2020 Pith paper

    Overlap junctions for superconducting quantum electronics and amplifiers

    physics.app-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    12
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  30. 2018 Pith paper

    Quantum Sensing for High Energy Physics

    hep-ex provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    94
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  31. 2017 Pith paper

    Frequency dependence of trapped flux sensitivity in SRF cavities

    physics.acc-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    8
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  32. 2014 Pith paper

    Nitrogen-Doped 9-Cell Cavity Performance in a Test Cryomodule for LCLS-II

    physics.acc-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    15
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.
  33. 2008 Pith paper

    Model for Diffusion-Induced Ramsey Narrowing

    quant-ph provisional measured, no current review

    paper paper evidence challenge this paper

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Alexander Romanenko
    Author position
    1
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    No source count is attached to this work row.

Evidence apparatus

The machinery behind this record. Every lane states whether Pith measured it, did not query it, could not reach it, or withheld it.

LaneStateObservedBoundary and source
identity Measured 2 Canonical identity row plus public typed identifiers.
source=authors, author_identifiers
papers Measured 33 of 33 bounded rows Rows attributed to this author UUID in the Pith corpus.
source=paper_authors
works Measured zero 0 of 0 bounded rows Imported works not duplicated by the paper ledger.
source=author_works
reviews Measured 5 of 33 bounded rows Coverage count only. No review outcome is projected onto the person.
source=current_verdicts
citations Measured 11 of 33 bounded rows Counts remain itemized by work and source.
source=cited_works
coauthors Measured 50 of 33 bounded rows Shared-work edges from admitted paper rows.
source=paper_authors
account Unavailable No public count of 1 bounded rows Account metadata is separate from corpus evidence.
source=users.author_id
Public identity sources
  • name variant
    Alexander Romanenko     backfill
    confidence 0.6

identity history

Enumerated research scope

Fields and dates come only from enumerated, non-disputed Pith paper rows. They do not claim career completeness.

  • quant-ph19 rows
  • physics.app-ph4 rows
  • cond-mat.mtrl-sci3 rows
  • cond-mat.supr-con2 rows
  • hep-ex2 rows
  • physics.acc-ph2 rows
  • cond-mat.mes-hall1 rows
  • 20081 rows
  • 20141 rows
  • 20171 rows
  • 20181 rows
  • 20201 rows
  • 20215 rows
  • 20226 rows
  • 20238 rows
  • 20244 rows
  • 20255 rows
Shared-work index
Record scope

The work queries are bounded. Missing rows may mean measured zero, an unavailable source, a query that did not run, or private data that Pith withheld. The lane table keeps those cases separate.

Paper findings remain attached to papers. They do not become findings about this researcher.