Geometric phase kickback in a mesoscopic qubit-oscillator system
We illustrate a reverse Von Neumann measurement scheme in which a geometric phase induced on a quantum harmonic oscillator is measured using a microscopic qubit as a probe. We show how such a phase, generated by a cyclic evolution in the phase space of the harmonic oscillator, can be kicked back on...
| Main Authors: | , , , , , |
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| Format: | Journal article |
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2011
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| _version_ | 1826304951456890880 |
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| author | Vacanti, G Fazio, R Kim, MS Palma, G Paternostro, M Vedral, V |
| author_facet | Vacanti, G Fazio, R Kim, MS Palma, G Paternostro, M Vedral, V |
| author_sort | Vacanti, G |
| collection | OXFORD |
| description | We illustrate a reverse Von Neumann measurement scheme in which a geometric phase induced on a quantum harmonic oscillator is measured using a microscopic qubit as a probe. We show how such a phase, generated by a cyclic evolution in the phase space of the harmonic oscillator, can be kicked back on the qubit, which plays the role of a quantum interferometer. We also extend our study to finite-temperature dissipative Markovian dynamics and discuss potential implementations in micro and nano-mechanical devices coupled to an effective two-level system. |
| first_indexed | 2024-03-07T06:25:30Z |
| format | Journal article |
| id | oxford-uuid:f426f383-0b60-4266-9b64-d84e3b4ec1d9 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T06:25:30Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:f426f383-0b60-4266-9b64-d84e3b4ec1d92022-03-27T12:17:35ZGeometric phase kickback in a mesoscopic qubit-oscillator systemJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f426f383-0b60-4266-9b64-d84e3b4ec1d9Symplectic Elements at Oxford2011Vacanti, GFazio, RKim, MSPalma, GPaternostro, MVedral, VWe illustrate a reverse Von Neumann measurement scheme in which a geometric phase induced on a quantum harmonic oscillator is measured using a microscopic qubit as a probe. We show how such a phase, generated by a cyclic evolution in the phase space of the harmonic oscillator, can be kicked back on the qubit, which plays the role of a quantum interferometer. We also extend our study to finite-temperature dissipative Markovian dynamics and discuss potential implementations in micro and nano-mechanical devices coupled to an effective two-level system. |
| spellingShingle | Vacanti, G Fazio, R Kim, MS Palma, G Paternostro, M Vedral, V Geometric phase kickback in a mesoscopic qubit-oscillator system |
| title | Geometric phase kickback in a mesoscopic qubit-oscillator system |
| title_full | Geometric phase kickback in a mesoscopic qubit-oscillator system |
| title_fullStr | Geometric phase kickback in a mesoscopic qubit-oscillator system |
| title_full_unstemmed | Geometric phase kickback in a mesoscopic qubit-oscillator system |
| title_short | Geometric phase kickback in a mesoscopic qubit-oscillator system |
| title_sort | geometric phase kickback in a mesoscopic qubit oscillator system |
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