Efficient two-port electron beam splitter via a quantum interaction-free measurement
Semitransparent mirrors are standard elements in light optics for splitting light beams or creating two versions of the same image. Such mirrors do not exist in electron optics, although they could be beneficial in existing techniques such as electron interferometry and holography and could enable a...
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| Format: | Article |
| Language: | English |
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American Physical Society
2018
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| Online Access: | http://hdl.handle.net/1721.1/118957 https://orcid.org/0000-0003-1524-7973 https://orcid.org/0000-0002-8547-0639 https://orcid.org/0000-0003-0855-3710 https://orcid.org/0000-0001-7453-9031 |
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| author | Yang, Yujia Kim, Chung-Soo Hobbs, Richard G. Kruit, Pieter Berggren, Karl K. Kim, Chungsoo Hobbs, Richard Berggren, Karl K |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Yang, Yujia Kim, Chung-Soo Hobbs, Richard G. Kruit, Pieter Berggren, Karl K. Kim, Chungsoo Hobbs, Richard Berggren, Karl K |
| author_sort | Yang, Yujia |
| collection | MIT |
| description | Semitransparent mirrors are standard elements in light optics for splitting light beams or creating two versions of the same image. Such mirrors do not exist in electron optics, although they could be beneficial in existing techniques such as electron interferometry and holography and could enable alternative electron imaging and spectroscopy techniques. We propose a design for an electron beam splitter using the concept of quantum interaction-free measurement (IFM). The design combines an electron resonator with a weak phase grating. Fast switching gates allow electrons to enter and exit the resonator. While in the resonator, the phase grating transfers intensity from the direct beam into one of the weakly diffracted beams at each pass. To make the beam splitter an efficient two-port splitter, the intensity in all other diffracted beams is blocked by an aperture. The IFM principle minimizes the loss of total intensity by this aperture. We use a scattering matrix method to analyze the performance of the beam splitter, including the effects of inelastic scattering in the phase grating. This design can be generalized to beam splitters for not only electrons, but also photons, neutrons, atoms, and other quantum mechanical systems. |
| first_indexed | 2024-09-23T12:47:29Z |
| format | Article |
| id | mit-1721.1/118957 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:47:29Z |
| publishDate | 2018 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1189572022-10-01T11:09:55Z Efficient two-port electron beam splitter via a quantum interaction-free measurement Yang, Yujia Kim, Chung-Soo Hobbs, Richard G. Kruit, Pieter Berggren, Karl K. Kim, Chungsoo Hobbs, Richard Berggren, Karl K Massachusetts Institute of Technology. Research Laboratory of Electronics Yang, Yujia Kim, Chungsoo Hobbs, Richard Berggren, Karl K Semitransparent mirrors are standard elements in light optics for splitting light beams or creating two versions of the same image. Such mirrors do not exist in electron optics, although they could be beneficial in existing techniques such as electron interferometry and holography and could enable alternative electron imaging and spectroscopy techniques. We propose a design for an electron beam splitter using the concept of quantum interaction-free measurement (IFM). The design combines an electron resonator with a weak phase grating. Fast switching gates allow electrons to enter and exit the resonator. While in the resonator, the phase grating transfers intensity from the direct beam into one of the weakly diffracted beams at each pass. To make the beam splitter an efficient two-port splitter, the intensity in all other diffracted beams is blocked by an aperture. The IFM principle minimizes the loss of total intensity by this aperture. We use a scattering matrix method to analyze the performance of the beam splitter, including the effects of inelastic scattering in the phase grating. This design can be generalized to beam splitters for not only electrons, but also photons, neutrons, atoms, and other quantum mechanical systems. 2018-11-08T15:49:16Z 2018-11-08T15:49:16Z 2018-10 2017-10 2018-10-17T18:01:24Z Article http://purl.org/eprint/type/JournalArticle 2469-9926 2469-9934 http://hdl.handle.net/1721.1/118957 Yang, Yujia et al. "Efficient two-port electron beam splitter via a quantum interaction-free measurement." Physical Review A 98, 043621 (October 2018): 043621 © 2018 American Physical Society https://orcid.org/0000-0003-1524-7973 https://orcid.org/0000-0002-8547-0639 https://orcid.org/0000-0003-0855-3710 https://orcid.org/0000-0001-7453-9031 en http://dx.doi.org/10.1103/PhysRevA.98.043621 Physical Review A Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Yang, Yujia Kim, Chung-Soo Hobbs, Richard G. Kruit, Pieter Berggren, Karl K. Kim, Chungsoo Hobbs, Richard Berggren, Karl K Efficient two-port electron beam splitter via a quantum interaction-free measurement |
| title | Efficient two-port electron beam splitter via a quantum interaction-free measurement |
| title_full | Efficient two-port electron beam splitter via a quantum interaction-free measurement |
| title_fullStr | Efficient two-port electron beam splitter via a quantum interaction-free measurement |
| title_full_unstemmed | Efficient two-port electron beam splitter via a quantum interaction-free measurement |
| title_short | Efficient two-port electron beam splitter via a quantum interaction-free measurement |
| title_sort | efficient two port electron beam splitter via a quantum interaction free measurement |
| url | http://hdl.handle.net/1721.1/118957 https://orcid.org/0000-0003-1524-7973 https://orcid.org/0000-0002-8547-0639 https://orcid.org/0000-0003-0855-3710 https://orcid.org/0000-0001-7453-9031 |
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