Tunneling time and weak measurement in strong field ionization
Tunneling delays represent a hotly debated topic, with many conflicting definitions and little consensus on when and if such definitions accurately describe the physical observables. Here, we relate these different definitions to distinct experimental observables in strong field ionization, finding...
| 主要な著者: | , , , , |
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| フォーマット: | Journal article |
| 言語: | English |
| 出版事項: |
American Physical Society
2016
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| _version_ | 1826289312102088704 |
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| author | Zimmermann, T Mishra, S Doran, B Gordon, D Landsman, A |
| author_facet | Zimmermann, T Mishra, S Doran, B Gordon, D Landsman, A |
| author_sort | Zimmermann, T |
| collection | OXFORD |
| description | Tunneling delays represent a hotly debated topic, with many conflicting definitions and little consensus on when and if such definitions accurately describe the physical observables. Here, we relate these different definitions to distinct experimental observables in strong field ionization, finding that two definitions, Larmor time and Bohmian time, are compatible with the attoclock observable and the resonance lifetime of a bound state, respectively. Both of these definitions are closely connected to the theory of weak measurement, with Larmor time being the weak measurement value of tunneling time and Bohmian trajectory corresponding to the average particle trajectory, which has been recently reconstructed using weak measurement in a two-slit experiment [S. Kocsis, B. Braverman, S. Ravets, M. J. Stevens, R. P. Mirin, L. K. Shalm, and A. M. Steinberg, Science 332, 1170 (2011)]. We demonstrate a big discrepancy in strong field ionization between the Bohmian and weak measurement values of tunneling time, and we suggest this arises because the tunneling time is calculated for a small probability postselected ensemble of electrons. Our results have important implications for the interpretation of experiments in attosecond science, suggesting that tunneling is unlikely to be an instantaneous process. |
| first_indexed | 2024-03-07T02:26:57Z |
| format | Journal article |
| id | oxford-uuid:a5edeb06-c3d1-4d38-97b5-ea616812c96c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:26:57Z |
| publishDate | 2016 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:a5edeb06-c3d1-4d38-97b5-ea616812c96c2022-03-27T02:43:51ZTunneling time and weak measurement in strong field ionizationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a5edeb06-c3d1-4d38-97b5-ea616812c96cEnglishSymplectic Elements at OxfordAmerican Physical Society2016Zimmermann, TMishra, SDoran, BGordon, DLandsman, ATunneling delays represent a hotly debated topic, with many conflicting definitions and little consensus on when and if such definitions accurately describe the physical observables. Here, we relate these different definitions to distinct experimental observables in strong field ionization, finding that two definitions, Larmor time and Bohmian time, are compatible with the attoclock observable and the resonance lifetime of a bound state, respectively. Both of these definitions are closely connected to the theory of weak measurement, with Larmor time being the weak measurement value of tunneling time and Bohmian trajectory corresponding to the average particle trajectory, which has been recently reconstructed using weak measurement in a two-slit experiment [S. Kocsis, B. Braverman, S. Ravets, M. J. Stevens, R. P. Mirin, L. K. Shalm, and A. M. Steinberg, Science 332, 1170 (2011)]. We demonstrate a big discrepancy in strong field ionization between the Bohmian and weak measurement values of tunneling time, and we suggest this arises because the tunneling time is calculated for a small probability postselected ensemble of electrons. Our results have important implications for the interpretation of experiments in attosecond science, suggesting that tunneling is unlikely to be an instantaneous process. |
| spellingShingle | Zimmermann, T Mishra, S Doran, B Gordon, D Landsman, A Tunneling time and weak measurement in strong field ionization |
| title | Tunneling time and weak measurement in strong field ionization |
| title_full | Tunneling time and weak measurement in strong field ionization |
| title_fullStr | Tunneling time and weak measurement in strong field ionization |
| title_full_unstemmed | Tunneling time and weak measurement in strong field ionization |
| title_short | Tunneling time and weak measurement in strong field ionization |
| title_sort | tunneling time and weak measurement in strong field ionization |
| work_keys_str_mv | AT zimmermannt tunnelingtimeandweakmeasurementinstrongfieldionization AT mishras tunnelingtimeandweakmeasurementinstrongfieldionization AT doranb tunnelingtimeandweakmeasurementinstrongfieldionization AT gordond tunnelingtimeandweakmeasurementinstrongfieldionization AT landsmana tunnelingtimeandweakmeasurementinstrongfieldionization |