Phonon decoherence of a double quantum dot charge qubit
Publication
, Journal Article
Vorojtsov, S; Mucciolo, ER; Baranger, HU
Published in: Physical Review B - Condensed Matter and Materials Physics
January 1, 2005
We study decoherence of a quantum dot charge qubit due to coupling to piezoelectric acoustic phonons in the Born-Markov approximation. After including appropriate form factors, we find that phonon decoherence rates are one to two orders of magnitude weaker than was previously predicted. We calculate the dependence of the Q factor on lattice temperature, quantum dot size, and interdot coupling. Our results suggest that mechanisms other than phonon decoherence play a more significant role in current experimental setups. © 2005 The American Physical Society.
Duke Scholars
Published In
Physical Review B - Condensed Matter and Materials Physics
DOI
EISSN
1550-235X
ISSN
1098-0121
Publication Date
January 1, 2005
Volume
71
Issue
20
Related Subject Headings
- Fluids & Plasmas
- 09 Engineering
- 03 Chemical Sciences
- 02 Physical Sciences
Citation
APA
Chicago
ICMJE
MLA
NLM
Vorojtsov, S., Mucciolo, E. R., & Baranger, H. U. (2005). Phonon decoherence of a double quantum dot charge qubit. Physical Review B - Condensed Matter and Materials Physics, 71(20). https://doi.org/10.1103/PhysRevB.71.205322
Vorojtsov, S., E. R. Mucciolo, and H. U. Baranger. “Phonon decoherence of a double quantum dot charge qubit.” Physical Review B - Condensed Matter and Materials Physics 71, no. 20 (January 1, 2005). https://doi.org/10.1103/PhysRevB.71.205322.
Vorojtsov S, Mucciolo ER, Baranger HU. Phonon decoherence of a double quantum dot charge qubit. Physical Review B - Condensed Matter and Materials Physics. 2005 Jan 1;71(20).
Vorojtsov, S., et al. “Phonon decoherence of a double quantum dot charge qubit.” Physical Review B - Condensed Matter and Materials Physics, vol. 71, no. 20, Jan. 2005. Scopus, doi:10.1103/PhysRevB.71.205322.
Vorojtsov S, Mucciolo ER, Baranger HU. Phonon decoherence of a double quantum dot charge qubit. Physical Review B - Condensed Matter and Materials Physics. 2005 Jan 1;71(20).
Published In
Physical Review B - Condensed Matter and Materials Physics
DOI
EISSN
1550-235X
ISSN
1098-0121
Publication Date
January 1, 2005
Volume
71
Issue
20
Related Subject Headings
- Fluids & Plasmas
- 09 Engineering
- 03 Chemical Sciences
- 02 Physical Sciences