Cosmic Bell Test Using Random Measurement Settings from High-Redshift Quasars
In this Letter, we present a cosmic Bell experiment with polarization-entangled photons, in which measurement settings were determined based on real-time measurements of the wavelength of photons from high-redshift quasars, whose light was emitted billions of years ago; the experiment simultaneously...
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2018
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| Online Access: | http://hdl.handle.net/1721.1/117430 https://orcid.org/0000-0003-3802-5206 https://orcid.org/0000-0002-5054-6744 |
| _version_ | 1826194382531854336 |
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| author | Rauch, Dominik Handsteiner, Johannes Hochrainer, Armin Gallicchio, Jason Friedman, Andrew S. Liu, Bo Bulla, Lukas Ecker, Sebastian Steinlechner, Fabian Ursin, Rupert Hu, Beili Leon, David Benn, Chris Ghedina, Adriano Cecconi, Massimo Scheidl, Thomas Zeilinger, Anton Leung, Calvin Guth, Alan Kaiser, David I |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Rauch, Dominik Handsteiner, Johannes Hochrainer, Armin Gallicchio, Jason Friedman, Andrew S. Liu, Bo Bulla, Lukas Ecker, Sebastian Steinlechner, Fabian Ursin, Rupert Hu, Beili Leon, David Benn, Chris Ghedina, Adriano Cecconi, Massimo Scheidl, Thomas Zeilinger, Anton Leung, Calvin Guth, Alan Kaiser, David I |
| author_sort | Rauch, Dominik |
| collection | MIT |
| description | In this Letter, we present a cosmic Bell experiment with polarization-entangled photons, in which measurement settings were determined based on real-time measurements of the wavelength of photons from high-redshift quasars, whose light was emitted billions of years ago; the experiment simultaneously ensures locality. Assuming fair sampling for all detected photons and that the wavelength of the quasar photons had not been selectively altered or previewed between emission and detection, we observe statistically significant violation of Bell’s inequality by 9.3 standard deviations, corresponding to an estimated p value of ≲7.4×10^{-21}. This experiment pushes back to at least ∼7.8 Gyr ago the most recent time by which any local-realist influences could have exploited the “freedom-of-choice” loophole to engineer the observed Bell violation, excluding any such mechanism from 96% of the space-time volume of the past light cone of our experiment, extending from the big bang to today. |
| first_indexed | 2024-09-23T09:55:15Z |
| format | Article |
| id | mit-1721.1/117430 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:55:15Z |
| publishDate | 2018 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1174302022-09-30T17:44:24Z Cosmic Bell Test Using Random Measurement Settings from High-Redshift Quasars Rauch, Dominik Handsteiner, Johannes Hochrainer, Armin Gallicchio, Jason Friedman, Andrew S. Liu, Bo Bulla, Lukas Ecker, Sebastian Steinlechner, Fabian Ursin, Rupert Hu, Beili Leon, David Benn, Chris Ghedina, Adriano Cecconi, Massimo Scheidl, Thomas Zeilinger, Anton Leung, Calvin Guth, Alan Kaiser, David I Massachusetts Institute of Technology. Department of Physics Leung, Calvin Guth, Alan Kaiser, David I In this Letter, we present a cosmic Bell experiment with polarization-entangled photons, in which measurement settings were determined based on real-time measurements of the wavelength of photons from high-redshift quasars, whose light was emitted billions of years ago; the experiment simultaneously ensures locality. Assuming fair sampling for all detected photons and that the wavelength of the quasar photons had not been selectively altered or previewed between emission and detection, we observe statistically significant violation of Bell’s inequality by 9.3 standard deviations, corresponding to an estimated p value of ≲7.4×10^{-21}. This experiment pushes back to at least ∼7.8 Gyr ago the most recent time by which any local-realist influences could have exploited the “freedom-of-choice” loophole to engineer the observed Bell violation, excluding any such mechanism from 96% of the space-time volume of the past light cone of our experiment, extending from the big bang to today. 2018-08-20T19:07:08Z 2018-08-20T19:07:08Z 2018-08 2018-06 2018-08-20T18:00:24Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/117430 Rauch, Dominik et al. "Cosmic Bell Test Using Random Measurement Settings from High-Redshift Quasars." Physical Review Letters 121, 8 (August 2018): 080403 https://orcid.org/0000-0003-3802-5206 https://orcid.org/0000-0002-5054-6744 en http://dx.doi.org/10.1103/PhysRevLett.121.080403 Physical Review Letters Creative Commons Attribution http://creativecommons.org/licenses/by/3.0 application/pdf American Physical Society American Physical Society |
| spellingShingle | Rauch, Dominik Handsteiner, Johannes Hochrainer, Armin Gallicchio, Jason Friedman, Andrew S. Liu, Bo Bulla, Lukas Ecker, Sebastian Steinlechner, Fabian Ursin, Rupert Hu, Beili Leon, David Benn, Chris Ghedina, Adriano Cecconi, Massimo Scheidl, Thomas Zeilinger, Anton Leung, Calvin Guth, Alan Kaiser, David I Cosmic Bell Test Using Random Measurement Settings from High-Redshift Quasars |
| title | Cosmic Bell Test Using Random Measurement Settings from High-Redshift Quasars |
| title_full | Cosmic Bell Test Using Random Measurement Settings from High-Redshift Quasars |
| title_fullStr | Cosmic Bell Test Using Random Measurement Settings from High-Redshift Quasars |
| title_full_unstemmed | Cosmic Bell Test Using Random Measurement Settings from High-Redshift Quasars |
| title_short | Cosmic Bell Test Using Random Measurement Settings from High-Redshift Quasars |
| title_sort | cosmic bell test using random measurement settings from high redshift quasars |
| url | http://hdl.handle.net/1721.1/117430 https://orcid.org/0000-0003-3802-5206 https://orcid.org/0000-0002-5054-6744 |
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