Spin-selective reactions of radical pairs act as quantum measurements
Since the 1970s, spin-selective reactions of radical pairs have been modelled theoretically by adding phenomenological rate equations to the quantum mechanical equation of motion of the radical pair spin density matrix. Here, using a quantum measurement approach, we derive an alternative set of rate...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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2010
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| _version_ | 1797061133176143872 |
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| author | Jones, J Hore, P |
| author_facet | Jones, J Hore, P |
| author_sort | Jones, J |
| collection | OXFORD |
| description | Since the 1970s, spin-selective reactions of radical pairs have been modelled theoretically by adding phenomenological rate equations to the quantum mechanical equation of motion of the radical pair spin density matrix. Here, using a quantum measurement approach, we derive an alternative set of rate expressions which predict a faster decay of coherent superpositions of the singlet and triplet radical pair states. The difference between the two results, however, is not dramatic and would probably be difficult to distinguish experimentally from decoherence arising from other sources. |
| first_indexed | 2024-03-06T20:26:41Z |
| format | Journal article |
| id | oxford-uuid:2fa3bfb6-dd9c-4134-8b38-c623829e59ac |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:26:41Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:2fa3bfb6-dd9c-4134-8b38-c623829e59ac2022-03-26T12:56:32ZSpin-selective reactions of radical pairs act as quantum measurementsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2fa3bfb6-dd9c-4134-8b38-c623829e59acEnglishSymplectic Elements at Oxford2010Jones, JHore, PSince the 1970s, spin-selective reactions of radical pairs have been modelled theoretically by adding phenomenological rate equations to the quantum mechanical equation of motion of the radical pair spin density matrix. Here, using a quantum measurement approach, we derive an alternative set of rate expressions which predict a faster decay of coherent superpositions of the singlet and triplet radical pair states. The difference between the two results, however, is not dramatic and would probably be difficult to distinguish experimentally from decoherence arising from other sources. |
| spellingShingle | Jones, J Hore, P Spin-selective reactions of radical pairs act as quantum measurements |
| title | Spin-selective reactions of radical pairs act as quantum measurements |
| title_full | Spin-selective reactions of radical pairs act as quantum measurements |
| title_fullStr | Spin-selective reactions of radical pairs act as quantum measurements |
| title_full_unstemmed | Spin-selective reactions of radical pairs act as quantum measurements |
| title_short | Spin-selective reactions of radical pairs act as quantum measurements |
| title_sort | spin selective reactions of radical pairs act as quantum measurements |
| work_keys_str_mv | AT jonesj spinselectivereactionsofradicalpairsactasquantummeasurements AT horep spinselectivereactionsofradicalpairsactasquantummeasurements |