Journal article

Conditioned spin and charge dynamics of a single-electron quantum dot

Abstract:: In this article we describe the incoherent and coherent spin and charge dynamics of a single-electron quantum dot. We use a stochastic master equation to model the state of the system, as inferred by an observer with access to only the current signal through a quantum point contact, acting as a charge sensor. Measurements obtained during an interval of time contribute, by a past quantum state analysis, to our knowledge about the system at any time t within that interval. Such analysis permits precise estimation of physical parameters and we propose and test a modification of the classical Baum-Welch parameter reestimation method to systems driven by both coherent and incoherent processes.

Publication status:: Published

Peer review status:: Peer reviewed

Actions

Email

Email this record

Send the bibliographic details of this record to your email address.

Your Email
Please enter the email address that the record information will be sent to.

-
Your message (optional)
Please add any additional information to be included within the email.
Cite

Cite this record

APA Style

Greplova, E., Laird, E., Briggs, G., & Mølmer, K. (2017). Conditioned spin and charge dynamics of a single-electron quantum dot. Physical Review A, 96(5), 052104.

MLA Style

Greplova, E., et al. “Conditioned Spin and Charge Dynamics of a Single-Electron Quantum Dot.” Physical Review A, vol. 96, no. 5, American Physical Society, 2017, p. 052104.

Chicago Style

Greplova, E, E Laird, G Briggs, and K Mølmer. 2017. “Conditioned Spin and Charge Dynamics of a Single-Electron Quantum Dot.” Physical Review A 96 (5): 052104.
Share
Print

Access Document

Publisher copy:: 10.1103/PhysRevA.96.052104

Authors

+ Greplova, E More by this author

Role:: Author

+ Laird, E More by this author

Institution:: University of Oxford
Division:: MPLS Division
Department:: Materials
Role:: Author

+ Briggs, G More by this author

Institution:: University of Oxford
Division:: MPLS Division
Department:: Materials
Oxford college:: St Anne's College
Role:: Author

+ Mølmer, K More by this author

Role:: Author

+ Engineering and Physical Sciences Research Council More from this funder

Grant:: EP/J015067/1

+ Royal Academy of Engineering More from this funder

+ Villum Fonden More from this funder

Publisher:: American Physical Society
Journal:: Physical Review A More from this journal
Volume:: 96
Issue:: 5
Pages:: 052104
Publication date:: 2017-11-01
DOI:: 10.1103/PhysRevA.96.052104
EISSN:: 2469-9934
ISSN:: 2469-9926

Keywords:: Journal Article
Pubs id:: pubs:796308
UUID:: uuid:53567cc3-e7fd-4818-87b3-e4284920b67d
Local pid:: pubs:796308
Source identifiers:: 796308
Deposit date:: 2018-03-09

Terms of use

Copyright date:: 2017

Licence:: Terms and Conditions of Use for Oxford University Research Archive

Views and Downloads

About views and downloads

If you are the owner of this record, you can report an update to it here: Report update to this record

TO TOP