Pith Number

pith:XWMEDEKN

pith:2026:XWMEDEKNGBZTPTQGPB63J3VLNN

not attested not anchored not stored refs resolved

Undulator Radiation from a Single Electron: A Temporal Double-Slit Experiment

Arjun Radha Krishnan, Carsten Mai, Hiroshi Miyauchi, Masahiro Katoh, Miho Shimada, Shaukat Khan, Tatsuo Kaneyasu, Vivek Vijayan, Wael Salah, Yasuaki Okano, Yuya Asai, Zohair Usfoor

A single relativistic electron passing two undulators produces the same spectral interference as a full electron beam.

arxiv:2605.18244 v1 · 2026-05-18 · physics.acc-ph

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\usepackage{pith}
\pithnumber{XWMEDEKNGBZTPTQGPB63J3VLNN}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

the spectral distribution of accumulated synchrotron light from a single electron is essentially the same as the spectrum from a beam of many electrons... coherent photon emission is delocalized over several meters and the accumulated spectral distribution exhibits a deterministic interference pattern at small wavelengths.

C2weakest assumption

The experiments assume that the detected light originates from a truly isolated single electron without undetected contributions from other electrons in the storage ring, and that the magnetic detour between the two undulators preserves phase coherence without introducing uncontrolled timing jitter or decoherence. This premise is invoked in the description of the low-intensity single-electron operation and the comparison between single-electron and multi-electron spectra.

C3one line summary

Spectral interference from temporally separated radiation pulses emitted by a single electron in two undulators matches the pattern seen with many-electron beams, demonstrating delocalized coherent emission.

References

40 extracted · 40 resolved · 1 Pith anchors

[1] Experiments and calculation relative to physical optics · doi:10.1098/rstl.1804.0001

[2] Zeitschrift f¨ ur Physik161, 454–474 (1961) https://doi.org/10.1007/ BF01342460 1961

[3] G., Treimer, W., and Mampe W: Single- and double-slit diffraction of neutrons 1988 · doi:10.1103/revmodphys.60.1067

[4] Brezger, B., Hackerm¨ uller, L., Uttenthaler, S., Petschinka, J., Arndt, M., Zeilinger, A.: Matter-wave interferometer for large molecules. Phys. Rev. Lett. 88, 100404 (2002) https://doi.org/10.1103/P 2002 · doi:10.1103/physrevlett.88.100404

[5] I.: Interference fringes with feeble light 1909

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:05:51.995064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd9841914d307337ce06787db4eeab6b700a03a435b4009eb83a41893f08a1b9

Aliases

arxiv: 2605.18244 · arxiv_version: 2605.18244v1 · doi: 10.48550/arxiv.2605.18244 · pith_short_12: XWMEDEKNGBZT · pith_short_16: XWMEDEKNGBZTPTQG · pith_short_8: XWMEDEKN

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XWMEDEKNGBZTPTQGPB63J3VLNN \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: bd9841914d307337ce06787db4eeab6b700a03a435b4009eb83a41893f08a1b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98742038705b2d48052a288303b747e8bf8fefc2dc4835dc84cbbfd2330ca813",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2026-05-18T11:39:00Z",
    "title_canon_sha256": "8ac7561868c21e4d1e8f1d5aaf09d74478a99c483512266ce56f02e0ddf86a44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18244",
    "kind": "arxiv",
    "version": 1
  }
}