The N@C60 nuclear spin qubit: Bang-bang decoupling and ultrafast phase gates
Nuclear spins have been proposed for the embodiment of quantum information and yielded the most complex demonstrations of quantum algorithms to date. However, the weak thermal polarisation of nuclear spins in experimentally accessible conditions has presented a barrier to further scaling. Here, we d...
| প্রধান লেখক: | , , , , , , |
|---|---|
| বিন্যাস: | Journal article |
| ভাষা: | English |
| প্রকাশিত: |
2006
|
| _version_ | 1826295110424330240 |
|---|---|
| author | Morton, J Tyryshkin, A Ardavan, A Benjamin, S Porfyrakis, K Lyon, SA Briggs, G |
| author_facet | Morton, J Tyryshkin, A Ardavan, A Benjamin, S Porfyrakis, K Lyon, SA Briggs, G |
| author_sort | Morton, J |
| collection | OXFORD |
| description | Nuclear spins have been proposed for the embodiment of quantum information and yielded the most complex demonstrations of quantum algorithms to date. However, the weak thermal polarisation of nuclear spins in experimentally accessible conditions has presented a barrier to further scaling. Here, we discuss the benefits of a coupled electron spin to the nuclear spin qubit and demonstrate the ideas using the 14N nuclear spin in the N@C 60 molecule. In addition to providing a resource for nuclear spin polarisation and detection, the electron spin can be exploited to perform ultrafast nuclear spin phase gates, which can in turn be used to dynamically bang-bang decouple the nuclear spin from unwanted interactions. © 2006 WILEY-VCH Verlag GmbH and Co. KGaA. |
| first_indexed | 2024-03-07T03:56:04Z |
| format | Journal article |
| id | oxford-uuid:c2e78035-7c31-4fd5-8dcb-1b6a9c1a95a9 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:56:04Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:c2e78035-7c31-4fd5-8dcb-1b6a9c1a95a92022-03-27T06:12:31ZThe N@C60 nuclear spin qubit: Bang-bang decoupling and ultrafast phase gatesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c2e78035-7c31-4fd5-8dcb-1b6a9c1a95a9EnglishSymplectic Elements at Oxford2006Morton, JTyryshkin, AArdavan, ABenjamin, SPorfyrakis, KLyon, SABriggs, GNuclear spins have been proposed for the embodiment of quantum information and yielded the most complex demonstrations of quantum algorithms to date. However, the weak thermal polarisation of nuclear spins in experimentally accessible conditions has presented a barrier to further scaling. Here, we discuss the benefits of a coupled electron spin to the nuclear spin qubit and demonstrate the ideas using the 14N nuclear spin in the N@C 60 molecule. In addition to providing a resource for nuclear spin polarisation and detection, the electron spin can be exploited to perform ultrafast nuclear spin phase gates, which can in turn be used to dynamically bang-bang decouple the nuclear spin from unwanted interactions. © 2006 WILEY-VCH Verlag GmbH and Co. KGaA. |
| spellingShingle | Morton, J Tyryshkin, A Ardavan, A Benjamin, S Porfyrakis, K Lyon, SA Briggs, G The N@C60 nuclear spin qubit: Bang-bang decoupling and ultrafast phase gates |
| title | The N@C60 nuclear spin qubit: Bang-bang decoupling and ultrafast phase gates |
| title_full | The N@C60 nuclear spin qubit: Bang-bang decoupling and ultrafast phase gates |
| title_fullStr | The N@C60 nuclear spin qubit: Bang-bang decoupling and ultrafast phase gates |
| title_full_unstemmed | The N@C60 nuclear spin qubit: Bang-bang decoupling and ultrafast phase gates |
| title_short | The N@C60 nuclear spin qubit: Bang-bang decoupling and ultrafast phase gates |
| title_sort | n c60 nuclear spin qubit bang bang decoupling and ultrafast phase gates |
| work_keys_str_mv | AT mortonj thenc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT tyryshkina thenc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT ardavana thenc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT benjamins thenc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT porfyrakisk thenc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT lyonsa thenc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT briggsg thenc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT mortonj nc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT tyryshkina nc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT ardavana nc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT benjamins nc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT porfyrakisk nc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT lyonsa nc60nuclearspinqubitbangbangdecouplingandultrafastphasegates AT briggsg nc60nuclearspinqubitbangbangdecouplingandultrafastphasegates |