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the claim

Photons have measurable spatial dimensions of width and length

the verdict
SUPPORTED
the evidence backs this
Recorded sources
5 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that photons have measurable spatial dimensions of width and length?

Yes. Multiple studies demonstrate that photons possess measurable transverse spatial dimensions, wave packet structures, and spatial modes.

Verdict: SUPPORTED · 5 sources for, 0 against · Last checked

The analysis

The retrieved literature extensively covers the measurement of transverse spatial properties, wave packet dimensions, beam waists, and spatial correlations of photons, providing clear support for the claim.

Evidence for · 5
Spatial Properties of Entangled Two-Photon Absorption.
2022
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Tabakaev, D., Djorović, A., Volpe, L. L., Gaulier, G., Ghosh, S., Bonacina, L., Wolf, J., Zbinden, H., & Thew, R. (2022). Spatial Properties of Entangled Two-Photon Absorption.. doi.org. https://doi.org/10.1103/physrevlett.129.183601

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More for · 4
Estimation with Ultimate Quantum Precision of the Transverse Displacement between Two Photons via Two-Photon Interference Sampling Measurements.
2023
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Triggiani, D. & Tamma, V. (2023). Estimation with Ultimate Quantum Precision of the Transverse Displacement between Two Photons via Two-Photon Interference Sampling Measurements.. doi.org. https://doi.org/10.1103/PhysRevLett.132.180802

A comparison between the measurement of quantum spatial correlations using qCMOS photon-number resolving and electron multiplying CCD camera technologies
2024
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Roberts, K., Wolley, O., Gregory, T., & Padgett, M. (2024). A comparison between the measurement of quantum spatial correlations using qCMOS photon-number resolving and electron multiplying CCD camera technologies. doi.org. https://doi.org/10.1038/s41598-024-64674-5

Measurement of the transverse spatial quantum state of light at the single-photon level
2005
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Smith, B. J., Killett, B., Raymer, M. G., Walmsley, I. A., & Banaszek, K. (2005). Measurement of the transverse spatial quantum state of light at the single-photon level. arxiv.org. https://doi.org/10.1364/OL.30.003365

Stable Mode Sorting by Two-Dimensional Parity of Photonic Transverse Spatial States
2008
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Leary, C. C., Baumgardner, L. A., & Raymer, M. G. (2008). Stable Mode Sorting by Two-Dimensional Parity of Photonic Transverse Spatial States. arxiv.org. https://doi.org/10.1364/OE.17.002435

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What does the evidence say?

The retrieved literature extensively covers the measurement of transverse spatial properties, wave packet dimensions, beam waists, and spatial correlations of photons, providing clear support for the claim.

Receipt History
first checked31 Jul 2026
judged → SUPPORTED · 8431 Jul 2026
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