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Researcher Evidence Record

Debbie Leung

This bounded record lists 55 Pith paper rows and 0 imported work rows attributed to this corpus identity. The enumerated, non-disputed paper rows include quant-ph work dated 2001 to 2026. 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.

Enumerated paper scope: 1 field (quant-ph) · 2001-2026 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. 2026 Pith paper

    Counterexamples to additivity of minimum output $p$-R\'enyi entropy of quantum channels for $p>3/4$ and $0\leq p<1/4$

    quant-ph provisional current review present

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    1
    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.
  2. 2026 Pith paper

    Enhanced quantum capacity thresholds from symmetry

    quant-ph provisional current review present

    Sources and evidence
    Authorship source
    backfill
    Printed name
    Debbie Leung
    Author position
    4
    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

    Efficiently Computable Limits on EPR Pair Generation in Quantum Broadcast Channels

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  4. 2025 Pith paper

    Quantum Reverse Shannon Theorem Revisited

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  5. 2025 Pith paper

    Streaming quantum state purification for general mixed states

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    • 5 pith inbound references from cited_work_pith_inbound_counts
  6. 2025 Pith paper

    Fault-tolerant Preparation of Distant Logical Bell Pair -- with application in the magic square game

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  7. 2023 Pith paper

    Streaming quantum state purification

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    3
    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
  8. 2022 Pith paper

    Rate-Distortion Theory for Mixed States

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  9. 2022 Pith paper

    Rate Reduction of Blind Quantum Data Compression with Local Approximations Based on Unstable Structure of Quantum States

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  10. 2022 Pith paper

    The platypus of the quantum channel zoo

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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. 2022 Pith paper

    Generic nonadditivity of quantum capacity in simple channels

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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. 2021 Pith paper

    Achieving fault tolerance on capped color codes with few ancillas

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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. 2020 Pith paper

    Fault-tolerant quantum error correction using error weight parities

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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. 2020 Pith paper

    On the mixed-unitary rank of quantum channels

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  15. 2020 Pith paper

    Capacity Approaching Coding for Low Noise Interactive Quantum Communication, Part I: Large Alphabets

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  16. 2019 Pith paper

    Incompressibility of classical distributions

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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. 2019 Pith paper

    Additive entanglemement measures cannot be more than asymptotically continuous

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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. 2019 Pith paper

    LOCC protocols with bounded width per round optimize convex functions

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  19. 2018 Pith paper

    Round elimination in exact communication complexity

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  20. 2018 Pith paper

    Dephrasure channel and superadditivity of coherent information

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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. 2018 Pith paper

    Flag fault-tolerant error correction, measurement, and quantum computation for cyclic CSS codes

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  22. 2018 Pith paper

    A three-player coherent state embezzlement game

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  23. 2017 Pith paper

    Quantum and private capacities of low-noise channels

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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. 2015 Pith paper

    On the complementary quantum capacity of the depolarizing channel

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  25. 2015 Pith paper

    Maximum privacy without coherence, zero-error

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  26. 2015 Pith paper

    Near-linear constructions of exact unitary 2-designs

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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. 2014 Pith paper

    On the power of PPT-preserving and non-signalling codes

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  28. 2013 Pith paper

    When asymptotic LOCC offers no advantage over finite LOCC

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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. 2013 Pith paper

    Maximal Privacy Without Coherence

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  30. 2013 Pith paper

    Characteristics of Universal Embezzling Families

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  31. 2013 Pith paper

    Interpolatability distinguishes LOCC from separable von Neumann measurements

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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. 2012 Pith paper

    Everything You Always Wanted to Know About LOCC (But Were Afraid to Ask)

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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
  33. 2012 Pith paper

    A framework for bounding nonlocality of state discrimination

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  34. 2010 Pith paper

    Locking classical information

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  35. 2010 Pith paper

    Entanglement can increase asymptotic rates of zero-error classical communication over classical channels

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  36. 2010 Pith paper

    Characterization of universal two-qubit Hamiltonians

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  37. 2010 Pith paper

    Zero-error channel capacity and simulation assisted by non-local correlations

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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
  38. 2009 Pith paper

    Improving zero-error classical communication with entanglement

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  39. 2009 Pith paper

    Can closed timelike curves or nonlinear quantum mechanics improve quantum state discrimination or help solve hard problems?

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  40. 2008 Pith paper

    Continuity of quantum channel capacities

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  41. 2008 Pith paper

    Quantum Random Access Codes with Shared Randomness

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    Identity state
    provisional
    Source confidence
    0.7
    Review coverage
    Measured: no current Pith review exists.
    Citation counts
    • 12 pith inbound references from cited_work_pith_inbound_counts
  42. 2008 Pith paper

    Coherent state exchange in multi-prover quantum interactive proof systems

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  43. 2007 Pith paper

    Counterexamples to additivity of minimum output p-Renyi entropy for p close to 0

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  44. 2007 Pith paper

    On quantum capacity of erasure channel assisted by back classical communication

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  45. 2007 Pith paper

    Unconditional privacy over channels which cannot convey quantum information

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  46. 2006 Pith paper

    Quantum network communication -- the butterfly and beyond

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  47. 2006 Pith paper

    Quantum key distribution based on private states: unconditional security over untrusted channels with zero quantum capacity

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  48. 2006 Pith paper

    Communicating over adversarial quantum channels using quantum list codes

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  49. 2005 Pith paper

    Typical entanglement of stabilizer states

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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
  50. 2005 Pith paper

    Quantum key distribution based on arbitrarily-weak distillable entangled states

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  51. 2004 Pith paper

    Multiparty data hiding of quantum information

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  52. 2003 Pith paper

    Superdense coding of quantum states

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  53. 2003 Pith paper

    Randomizing quantum states: Constructions and applications

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    Author position
    2
    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.
  54. 2003 Pith paper

    Locking classical correlation in quantum states

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.
  55. 2001 Pith paper

    Classical capacity of a noiseless quantum channel assisted by noisy entanglement

    quant-ph provisional measured, no current review

    Sources and evidence
    Authorship source
    arxiv_oai
    Printed name
    Debbie Leung
    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.

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 55 of 55 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 2 of 55 bounded rows Coverage count only. No review outcome is projected onto the person.
source=current_verdicts
citations Measured 6 of 55 bounded rows Counts remain itemized by work and source.
source=cited_works
coauthors Measured 50 of 55 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
    Debbie Leung
    backfill
    confidence 0.6
Enumerated research scope

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

  • quant-ph55 rows
  • 20011 rows
  • 20033 rows
  • 20041 rows
  • 20052 rows
  • 20063 rows
  • 20073 rows
  • 20083 rows
  • 20092 rows
  • 20104 rows
  • 20122 rows
  • 20134 rows
  • 20141 rows
  • 20153 rows
  • 20171 rows
  • 20184 rows
  • 20193 rows
  • 20203 rows
  • 20211 rows
  • 20224 rows
  • 20231 rows
  • 20254 rows
  • 20262 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.