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Paper Citation Record · LEDGER

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field

As of 20 August 2026, this Paper Citation Record lists 35 of 35 outbound references and 0 inbound Pith citation observations for arXiv:1908.04726.

A citation records a reference. It does not transfer a finding from one paper to another.

pith.paper-citation-record.v1
1908.04726 v2

Coverage vector

measured 35 of 35 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-14T13:53:05.260303Z

measured 35 of 35 standing notices

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Source: scholarly_work_events, retraction_status_cache, observed 2026-08-20T06:33:59.587034+00:00

measured 0 of 0 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links

measured 0 of 1 external citation measurements

A source-named dated measurement, never combined with another source.

Source: cited_works

Reference resolution

35 of 35 outbound references displayed

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  • verified fuzzy15
  • unresolved19
  • parse uncertain0
  • malformed identifier0
  • metadata mismatch0

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation fa400234-5d56-49d8-82a5-65fffbb63afc · outbound

This paper cites For 3 (a)S = 1, L = 1:Berry phase.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field For 3 (a)S = 1, L = 1:Berry phase

Reference 1

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T13:53:05.840081Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.092309Z digest=sha256:a111d72978439b8f9f462b20fa29150b9bbd6f47a4f51eeb3122737b8ed10b50

Observation e2be17df-8549-48b8-a36b-1345bab5edce · outbound

This paper cites phase transition.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field phase transition

Reference 2

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T13:53:05.815378Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.101476Z digest=sha256:0d48a74f302472116bec4fe87574aeab141edc10bf36adaae430759be5cb03b4

Observation dad97523-b545-4a1d-8d25-90a4f123fbae · outbound

This paper cites 3, Ch(i) =−J(i) nB =−⟨ψi|JnB|ψi⟩.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field 3, Ch(i) =−J(i) nB =−⟨ψi|JnB|ψi⟩

Reference 3

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T13:53:05.827628Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.097257Z digest=sha256:59f1d797c77b6f9a287fad40c87ab21fa698b9590ed3b49fbdd9ec7742c58385

Observation 419df028-173c-46f0-94ca-9c6fe3f95d2f · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 4

Resolution
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no resolver link, observed 2026-08-14T13:53:05.151264Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T13:53:05.151264Z digest=sha256:79922162dab1fb83c5e69c78791212479f9072f30bc3584ffdf5ac04c0279235

Observation b4e4ad25-2142-4c00-b859-b49f42233b26 · outbound

This paper cites The states labeled by n = 1, 2, 3, 4, 10, 11, 12, 13, 14, 15 are non-degenerate states, while the other statesn = 5, 6, 7, 8, 9 have degenerate energy level atx = 2 5.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field The states labeled by n = 1, 2, 3, 4, 10, 11, 12, 13, 14, 15 are non-degenerate states, while the other statesn = 5, 6, 7, 8, 9 have degenerate energy level atx = 2 5

Reference 5

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T13:53:05.802765Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.106704Z digest=sha256:91f1542ded50fc0083a93e35c7f2c4364f73dce91968a0ab69eb90a622cc1559

Observation 6ff130db-a6f2-437a-96eb-b0388a41bb3e · outbound

This paper cites 7(a) shows the energy levels of our model for L = 2.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field 7(a) shows the energy levels of our model for L = 2

Reference 6

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raw_fallback, observed 2026-08-14T13:53:05.790356Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.111683Z digest=sha256:b198f7ea9c6c5778f47b8330d1f54666dd23243a6228ce6167da471eb91b7f73

Observation 5a931fc6-7d3c-4a71-b1cf-8b77267402ba · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 7

Resolution
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raw_fallback, observed 2026-08-14T13:53:05.775884Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.116655Z digest=sha256:ea689079c8814195f0015d6c81de1f247873134a04d789febbf80d81a1af498c

Observation 60122669-7659-4c47-ac3a-77b926f342d5 · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 8

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raw_fallback, observed 2026-08-14T13:53:05.759567Z

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No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.121896Z digest=sha256:f0638b1816f0d6fc3bfa605ce8c942508b7274302c80706c460385ce1982c80a

Observation 9d536412-df0e-47ca-94e7-a56d6862c771 · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 9

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unresolved
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No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.125811Z digest=sha256:19f40c8308553e21eef3db6e6ebf1f66ded8e967b8652beb3bed9c451d03c3cd

Observation 466b922f-7f31-4346-90a1-73fbbf21df80 · outbound

This paper cites Weyl point.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Weyl point

Reference 10

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No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

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Observation a7c64c41-0ba3-4b8b-8d40-31897c89e57a · outbound

This paper cites Weyl sphere.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Weyl sphere

Reference 11

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No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.134448Z digest=sha256:3a4521700fa04b3e7fe8722105f947ce010dcdfa57ea3ac0964fb82d56849728

Observation e89d2946-f361-41e4-8296-9697c7a207bb · outbound

This paper cites Zhu, Phys.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Zhu, Phys

Reference 12

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T13:53:05.691250Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.138797Z digest=sha256:0243a375a8f99290ec71f58873faedd7e7a206ca230da2ed2104eaba11cbd834

Observation 21e9a997-748a-407e-bac6-a629c789ae84 · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 13

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unresolved
raw_fallback, observed 2026-08-14T13:53:05.678016Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

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Observation 462f35b7-6579-43ba-b16e-88fd9ff1bbb9 · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 14

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unresolved
no resolver link, observed 2026-08-14T13:53:05.146995Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T13:53:05.146995Z digest=sha256:2a60183b63144b90adac6a001b09913d9036c3f5db9aff07aed09c1116e77a38

Observation 23f4fa71-68c2-47b4-8fd6-d406d78f8fe3 · outbound

This paper cites Qi and S.-C.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Qi and S.-C

Reference 15

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no resolver link, observed 2026-08-14T13:53:05.155240Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T13:53:05.155240Z digest=sha256:72c251773481dcf25bb566a40a4715aded58964c56839be4671c149c667ade85

Observation df861873-801c-49b7-9dc0-b0404d700502 · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 16

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No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.159300Z digest=sha256:4e35ad512d237bffc6211028cf82ec7fb1a2b4d8e6d750726d1dfe2f95bbc4d4

Observation 1b6231d9-9454-4d91-aad2-d75c9871b792 · outbound

This paper cites Armitage, E.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Armitage, E

Reference 17

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raw_fallback, observed 2026-08-14T13:53:05.617308Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.163747Z digest=sha256:875574ddda2f5e00de9b8ae8d6ebf8166c82c7f35d8084e0468ee2e6131f2719

Observation f0ffcb95-eca8-4d73-a57f-63a9dd188d32 · outbound

This paper cites Bradlyn, J.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Bradlyn, J

Reference 18

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verified fuzzy
raw_fallback, observed 2026-08-14T13:53:05.604623Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.168651Z digest=sha256:dbca72e626ca1b2874feb31cdb02e3a879efd88fd548376771ee6e979d37a6fa

Observation 912a6ce6-fc21-48d6-9e80-a51e584b5362 · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 19

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unresolved
no resolver link, observed 2026-08-14T13:53:05.172643Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T13:53:05.172643Z digest=sha256:0609392881a2c54d2af1178292786b610c9b74faaadb3ce3a2c0a235de4bc49e

Observation 46b60aee-5b70-43be-8e5f-7d518f0ca4bd · outbound

This paper cites Lv, Z.-L.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Lv, Z.-L

Reference 20

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unresolved
no resolver link, observed 2026-08-14T13:53:05.179045Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T13:53:05.179045Z digest=sha256:947550396a9252efab973d23bbfdaf4752cdc142e17cf161324989d825e5ee95

Observation 1dfed606-579b-41a8-ac01-e39eb2b7ba16 · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 21

Resolution
unresolved
raw_fallback, observed 2026-08-14T13:53:05.576109Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.183091Z digest=sha256:b62ed5e1484e84fd8c692478fae8b2cc33469efa510de969efa67b244d4264d5

Observation 8c7f96ea-96ad-4cc8-a852-e6ecb92ffc87 · outbound

This paper cites Erickson, D.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Erickson, D

Reference 22

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Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.188706Z digest=sha256:4da1e6b36d6c82074e3419b1a130ea53c7a53f892e6545f52a0d834d76220843

Observation 886e2eb3-dc92-48d3-91de-d0691db8ba64 · outbound

This paper cites Breit and I.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Breit and I

Reference 23

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verified fuzzy
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Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

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Observation f7f825ab-d22e-451b-8bab-016ffad79a25 · outbound

This paper cites Bai, M.-L.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Bai, M.-L

Reference 24

Resolution
verified exact
raw_fallback, observed 2026-08-14T13:53:05.382973Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.199914Z digest=sha256:dd9f4746af6f760f68de9b0b9c20065c3844e1aae5736d9121d495c4cf639ac4

Observation e4b52dbf-303a-4a1f-8a25-776b928dc0fc · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 25

Resolution
unresolved
raw_fallback, observed 2026-08-14T13:53:05.531226Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.204131Z digest=sha256:77525985fa2a1752ff1611209f358e714a62ac0cde725bfa151f2638e31ebf29

Observation f901bd52-cf87-4549-9b19-1ea9d0ae9c86 · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 26

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unresolved
raw_fallback, observed 2026-08-14T13:53:05.515857Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.208081Z digest=sha256:f44f51039c39305b6ae214bdd01f050766a6d9ff73858b029aac3ffcbb0efbe3

Observation 335192ae-6bee-4015-b4d0-b091292e3a9e · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 27

Resolution
unresolved
raw_fallback, observed 2026-08-14T13:53:05.501082Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.212298Z digest=sha256:919ccae3705444119e3a33e2165dd11237d53a59ef2ab6901d410f3daa503718

Observation 708b3466-2fb5-46c8-8069-829475eddfe1 · outbound

This paper cites Wilczek and A.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Wilczek and A

Reference 28

Resolution
unresolved
no resolver link, observed 2026-08-14T13:53:05.217317Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T13:53:05.217317Z digest=sha256:ededdc84529a95d0f7ae8def4e9c724b1cb9f8acb620a2afd07a0e5f147be433

Observation 776b62a5-8853-4c4f-8afe-6103ca20bc6d · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 29

Resolution
unresolved
raw_fallback, observed 2026-08-14T13:53:05.480876Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.227679Z digest=sha256:e7a28a2ba8389a9f9df0607a8067e780abf5cbd97375c2d935caf8dfa4b4e610

Observation 139abe59-1c4f-4d7a-b270-c28d64d54fc3 · outbound

This paper cites Zener, Proc.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Zener, Proc

Reference 30

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T13:53:05.466894Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.232322Z digest=sha256:6b6cfed2868bb50c2392db4742ad5bb5d5de830fec334ca738e52b89c43d7fcb

Observation fec6422a-916a-4628-9cad-af8907fe217c · outbound

This paper cites In topological semimetal, the bases are usually{a† k, ak}, where a† k(ak) rep- resents the fermionic operator in momentum space.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field In topological semimetal, the bases are usually{a† k, ak}, where a† k(ak) rep- resents the fermionic operator in momentum space

Reference 31

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verified fuzzy
raw_fallback, observed 2026-08-14T13:53:05.452900Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.236671Z digest=sha256:d1e4f7270d407350bf13e7b4db91a3e42f5e42db8f924d816ff91861569b077d

Observation b44f8dac-1349-4468-9e8a-92d5c3984fbe · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 32

Resolution
unresolved
raw_fallback, observed 2026-08-14T13:53:05.438855Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.242379Z digest=sha256:10c8509e69edbd9402fa09c15e9a779e34fbb806d83232a6458613b263a6587d

Observation 35784e78-c178-4d66-9d84-73c47d470145 · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 33

Resolution
unresolved
raw_fallback, observed 2026-08-14T13:53:05.425469Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.250067Z digest=sha256:2ef4a4321e9d4dcbaa0d87aa9d3b0ec0325e183afc8146c9308d7f791d84e0af

Observation b40f2e92-aa30-4be4-bcf5-c26a0b33b6fd · outbound

This paper cites an unresolved cited work.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work

Reference 34

Resolution
unresolved
raw_fallback, observed 2026-08-14T13:53:05.413192Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.254115Z digest=sha256:4c7262c487a33d23ba9303810418d0e68eb3fbee97273ccf39712e2ecc120de9

Observation 1ec972c2-13f1-4d0d-a508-bd25087c4ee0 · outbound

This paper cites (C11) These are the bases in the 5-dimension degenerate state space and they are smooth in the parameter space.

Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field (C11) These are the bases in the 5-dimension degenerate state space and they are smooth in the parameter space

Reference 35

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T13:53:05.397565Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-14T13:53:05.260303Z digest=sha256:37482c850f818fc3b9d8184301cb54706944bb7b53d027a8fd46864e985d5f30

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