Quantum interrogation of imperfect absorbers using post-selection
We propose a scheme for quantum interrogation measurements using constructive interference and post-selection to achieve single-pass high-efficiency detection for imperfect absorbers. We illustrate that our method works for heralded single-photon and weak attenuated sources. We also study the influe...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | JPhys Photonics |
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| Online Access: | https://doi.org/10.1088/2515-7647/adf165 |
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| _version_ | 1849728901888081920 |
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| author | Muhammad Abdullah Ijaz Syed Bilal Hyder Shah Muhammad Sabieh Anwar |
| author_facet | Muhammad Abdullah Ijaz Syed Bilal Hyder Shah Muhammad Sabieh Anwar |
| author_sort | Muhammad Abdullah Ijaz |
| collection | DOAJ |
| description | We propose a scheme for quantum interrogation measurements using constructive interference and post-selection to achieve single-pass high-efficiency detection for imperfect absorbers. We illustrate that our method works for heralded single-photon and weak attenuated sources. We also study the influence of noise in our experimental implementation and show that post-selection imparts additional robustness to the scheme against noise. We further demonstrate that fringe visibility from post-selection interferometry can be used to quantify the transmittance of the imperfect absorber. An interesting link between the interrogation and weak values of nonunitary operators is also highlighted. |
| format | Article |
| id | doaj-art-222e65493a944dafa475ade2b601aa7e |
| institution | DOAJ |
| issn | 2515-7647 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | JPhys Photonics |
| spelling | doaj-art-222e65493a944dafa475ade2b601aa7e2025-08-20T03:09:24ZengIOP PublishingJPhys Photonics2515-76472025-01-017303503110.1088/2515-7647/adf165Quantum interrogation of imperfect absorbers using post-selectionMuhammad Abdullah Ijaz0https://orcid.org/0009-0007-1264-6668Syed Bilal Hyder Shah1Muhammad Sabieh Anwar2https://orcid.org/0000-0001-5039-8828Department of Physics, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences (LUMS) , Opposite Sector U, DHA, Lahore 54792, PakistanDepartment of Physics, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences (LUMS) , Opposite Sector U, DHA, Lahore 54792, PakistanDepartment of Physics, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences (LUMS) , Opposite Sector U, DHA, Lahore 54792, PakistanWe propose a scheme for quantum interrogation measurements using constructive interference and post-selection to achieve single-pass high-efficiency detection for imperfect absorbers. We illustrate that our method works for heralded single-photon and weak attenuated sources. We also study the influence of noise in our experimental implementation and show that post-selection imparts additional robustness to the scheme against noise. We further demonstrate that fringe visibility from post-selection interferometry can be used to quantify the transmittance of the imperfect absorber. An interesting link between the interrogation and weak values of nonunitary operators is also highlighted.https://doi.org/10.1088/2515-7647/adf165quantum interferenceinteraction-free measurementweak value amplification |
| spellingShingle | Muhammad Abdullah Ijaz Syed Bilal Hyder Shah Muhammad Sabieh Anwar Quantum interrogation of imperfect absorbers using post-selection JPhys Photonics quantum interference interaction-free measurement weak value amplification |
| title | Quantum interrogation of imperfect absorbers using post-selection |
| title_full | Quantum interrogation of imperfect absorbers using post-selection |
| title_fullStr | Quantum interrogation of imperfect absorbers using post-selection |
| title_full_unstemmed | Quantum interrogation of imperfect absorbers using post-selection |
| title_short | Quantum interrogation of imperfect absorbers using post-selection |
| title_sort | quantum interrogation of imperfect absorbers using post selection |
| topic | quantum interference interaction-free measurement weak value amplification |
| url | https://doi.org/10.1088/2515-7647/adf165 |
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