Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-14T13:53:05.260303Z
Paper Citation Record · LEDGER
As of 16 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.
Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-14T13:53:05.260303Z
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-16T06:30:59.297886+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links
A source-named dated measurement, never combined with another source.
Source: cited_works
35 of 35 outbound references displayed
External citation measurements
No source-named external measurement is stored.
Observation fa400234-5d56-49d8-82a5-65fffbb63afc · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field For 3 (a)S = 1, L = 1:Berry phase
Reference 1
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation e2be17df-8549-48b8-a36b-1345bab5edce · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field phase transition
Reference 2
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation dad97523-b545-4a1d-8d25-90a4f123fbae · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field 3, Ch(i) =−J(i) nB =−⟨ψi|JnB|ψi⟩
Reference 3
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 419df028-173c-46f0-94ca-9c6fe3f95d2f · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 4
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation b4e4ad25-2142-4c00-b859-b49f42233b26 · outbound
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
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 6ff130db-a6f2-437a-96eb-b0388a41bb3e · outbound
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
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 5a931fc6-7d3c-4a71-b1cf-8b77267402ba · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 7
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 60122669-7659-4c47-ac3a-77b926f342d5 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 8
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 9d536412-df0e-47ca-94e7-a56d6862c771 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 9
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 466b922f-7f31-4346-90a1-73fbbf21df80 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Weyl point
Reference 10
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation a7c64c41-0ba3-4b8b-8d40-31897c89e57a · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Weyl sphere
Reference 11
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation e89d2946-f361-41e4-8296-9697c7a207bb · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Zhu, Phys
Reference 12
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 21e9a997-748a-407e-bac6-a629c789ae84 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 13
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 462f35b7-6579-43ba-b16e-88fd9ff1bbb9 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 14
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 23f4fa71-68c2-47b4-8fd6-d406d78f8fe3 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Qi and S.-C
Reference 15
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation df861873-801c-49b7-9dc0-b0404d700502 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 16
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 1b6231d9-9454-4d91-aad2-d75c9871b792 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Armitage, E
Reference 17
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation f0ffcb95-eca8-4d73-a57f-63a9dd188d32 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Bradlyn, J
Reference 18
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 912a6ce6-fc21-48d6-9e80-a51e584b5362 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 19
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 46b60aee-5b70-43be-8e5f-7d518f0ca4bd · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Lv, Z.-L
Reference 20
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 1dfed606-579b-41a8-ac01-e39eb2b7ba16 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 21
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 8c7f96ea-96ad-4cc8-a852-e6ecb92ffc87 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Erickson, D
Reference 22
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 886e2eb3-dc92-48d3-91de-d0691db8ba64 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Breit and I
Reference 23
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation f7f825ab-d22e-451b-8bab-016ffad79a25 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Bai, M.-L
Reference 24
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation e4b52dbf-303a-4a1f-8a25-776b928dc0fc · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 25
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation f901bd52-cf87-4549-9b19-1ea9d0ae9c86 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 26
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 335192ae-6bee-4015-b4d0-b091292e3a9e · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 27
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 708b3466-2fb5-46c8-8069-829475eddfe1 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Wilczek and A
Reference 28
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 776b62a5-8853-4c4f-8afe-6103ca20bc6d · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 29
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 139abe59-1c4f-4d7a-b270-c28d64d54fc3 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Zener, Proc
Reference 30
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation fec6422a-916a-4628-9cad-af8907fe217c · outbound
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
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation b44f8dac-1349-4468-9e8a-92d5c3984fbe · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 32
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 35784e78-c178-4d66-9d84-73c47d470145 · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 33
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation b40f2e92-aa30-4be4-bcf5-c26a0b33b6fd · outbound
Topological numbers of Happer model with "puzzling" degeneracy in periodic magnetic field Unresolved cited work
Reference 34
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 1ec972c2-13f1-4d0d-a508-bd25087c4ee0 · outbound
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
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
No inbound Pith citation observations are available.