DOI: 10.1073/pnas.0504720102. Direct observation of thitherto unobservable quantum phenomena by using electrons

Direct observation of thitherto unobservable quantum phenomena by using electrons

10.1073/pnas.0504720102

Crossref journal-article

Proceedings of the National Academy of Sciences

Proceedings of the National Academy of Sciences (341)

Abstract

Fundamental aspects of quantum mechanics, which were discussed only theoretically as “thought experiments” in the 1920s and 1930s, have begun to frequently show up in nanoscopic regions owing to recent rapid progress in advanced technologies. Quantum phenomena were once regarded as the ultimate factors limiting further miniaturization trends of microstructured electronic devices, but now they have begun to be actively used as the principles for new devices such as quantum computers. To directly observe what had been unobservable quantum phenomena, we have tried to develop bright and monochromatic electron beams for the last 35 years. Every time the brightness of an electron beam improved, fundamental experiments in quantum mechanics became possible, and quantum phenomena became observable by using the wave nature of electrons.

Bibliography

Tonomura, A. (2005). Direct observation of thitherto unobservable quantum phenomena by using electrons. Proceedings of the National Academy of Sciences, 102(42), 14952â14959.

Authors 1

Akira Tonomura (first)

References 65 Referenced 45

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Dates

Type	When
Created	20 years ago (Sept. 6, 2005, 8:33 p.m.)
Deposited	1 year, 7 months ago (Jan. 29, 2024, 7:35 a.m.)
Indexed	2 weeks, 5 days ago (Aug. 19, 2025, 6:08 a.m.)
Issued	20 years ago (Sept. 6, 2005)
Published	20 years ago (Sept. 6, 2005)
Published Online	20 years ago (Sept. 6, 2005)
Published Print	19 years, 10 months ago (Oct. 18, 2005)

Funders 0

None

BibTeX

@article{Tonomura_2005, title={Direct observation of thitherto unobservable quantum phenomena by using electrons}, volume={102}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.0504720102}, DOI={10.1073/pnas.0504720102}, number={42}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Tonomura, Akira}, year={2005}, month=sep, pages={14952–14959} }

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  "assertion": [
    {
      "value": "2005-09-06",
      "order": 2,
      "name": "published",
      "label": "Published",
      "group": {
        "name": "publication_history",
        "label": "Publication History"
      }
    }
  ]
}