Publication Type |
Manuscript |
School or College |
College of Science |
Department |
Physics |
Creator |
Boehme, Christoph |
Other Author |
Lips, Klaus |
Title |
Spin-dependent recombination - an electronic readout mechanism for solid state quantum computers |
Date |
2002-10 |
Description |
It is shown that coherent spin motion of electron-hole pairs localized in band gap states of silicon can influence charge carrier recombination. Based on this effect, a readout concept for silicon based solid-state spin-quantum computers as proposed by Kane is suggested. The 31P quantum bit (qbit) is connected via hyperfine coupling to the spin of the localized donor electron. When a second localized and singly occupied electronic state with an energy level deep within the band gap or close to the valence edge is in proximity, a gate controlled exchange between the 31P nucleus and the two electronic states can be activated that leaves the donor-deep level pair either unchanged in a |T−)-state or shifts it into a singlet state |S). Since the donor deep level transition is spin-dependent, the deep level becomes charged or not, depending on the nuclear spin orientation of the donor nucleus. Thus, the state of the qbit can be read with a sequence of light pulses and photo conductivity measurements. |
Type |
Text |
Publisher |
Wiley-Blackwell |
Journal Title |
physica status solidi (b) |
Volume |
233 |
Issue |
3 |
First Page |
427 |
Last Page |
435 |
DOI |
10.1002/1521-3951(200210)233:3<427::AID-PSSB427>3.0.CO;2-J |
citatation_issn |
0370-1972 |
Subject |
Spin readout; qbit; Spin-dependent recombination |
Subject LCSH |
Quantum computers; Electron-electron interactions; Ion recombination; Time-domain analysis; Magnetic resonance; Nuclear spin |
Language |
eng |
Bibliographic Citation |
Boehme, C., & Lips, K. (2002). Spin-dependent recombination - an electronic readout mechanism for solid state quantum computers. Physica Status Solidi B, 233(3), 42735. |
Rights Management |
(c) Wiley-Blackwell The definitive version is available at http://dx.doi.org/10.1002/1521-3951(200210)233:3<427::AID-PSSB427>3.0.CO;2-J |
Format Medium |
application/pdf |
Format Extent |
680,218 bytes |
Identifier |
ir-main,11989 |
ARK |
ark:/87278/s6wh37mv |
Setname |
ir_uspace |
ID |
706804 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6wh37mv |