dc.contributor.author | Barthel, Christian | |
dc.contributor.author | Kjærgaard, M. | |
dc.contributor.author | Medford, James Redding | |
dc.contributor.author | Stopa, Michael P | |
dc.contributor.author | Marcus, Charles Masamed | |
dc.contributor.author | Hanson, M. P. | |
dc.contributor.author | Gossard, Arthur C. | |
dc.date.accessioned | 2011-08-15T14:26:34Z | |
dc.date.issued | 2010 | |
dc.identifier.citation | Barthel, Christian, M. Kjærgaard, James Redding Medford, Michael Stopa, Charles Masamed Marcus, M. P. Hanson, and Arthur C. Gossard. 2010. Fast sensing of double-dot charge arrangement and spin state with a radio-frequency sensor quantum dot. Physical Review B 81(161308R). | en_US |
dc.identifier.issn | 1098-0121 | en_US |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:5110749 | |
dc.description.abstract | Single-shot measurement of the charge arrangement and spin state of a double quantum dot are reported with measurement times down to 100 ns. Sensing uses radio-frequency reflectometry of a proximal quantum dot in the Coulomb blockade regime. The sensor quantum dot is up to 30 times more sensitive than a comparable quantum point-contact sensor and yields three times greater signal to noise in rf single-shot measurements. Numerical modeling is qualitatively consistent with experiment and shows that the improved sensitivity of the sensor quantum dot results from reduced lifetime broadening and screening. | en_US |
dc.description.sponsorship | Physics | en_US |
dc.description.sponsorship | Other Research Unit | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | American Physical Society | en_US |
dc.relation.isversionof | doi:10.1103/PhysRevB.81.161308 | en_US |
dc.relation.hasversion | http://marcus.physics.harvard.edu/papers/Barthel_PRBRC2010.pdf | en_US |
dash.license | OAP | |
dc.subject | Coulomb-blockade | en_US |
dc.subject | single-electron transistor | en_US |
dc.title | Fast Sensing of Double-Dot Charge Arrangement and Spin State with a Radio-Frequency Sensor Quantum Dot | en_US |
dc.type | Journal Article | en_US |
dc.description.version | Accepted Manuscript | en_US |
dc.relation.journal | Physical Review B Condensed Matter and Materials Physics | en_US |
dash.depositing.author | Marcus, Charles Masamed | |
dc.date.available | 2011-08-15T14:26:34Z | |
dc.identifier.doi | 10.1103/PhysRevB.81.161308 | * |
dash.contributor.affiliated | Stopa, Michael P | |
dash.contributor.affiliated | Barthel, C | |
dash.contributor.affiliated | Medford, James Redding | |
dash.contributor.affiliated | Marcus, C | |