SAIP2015

Process tomography within the hybrid formalism

1 Jul 2015, 14:20

20m

Oral Presentation Track G - Theoretical and Computational Physics TCP

Speaker

Ms Humairah Bassa (University of KwaZulu-Natal and NLC, CSIR)

Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)

No

Main supervisor (name and email)<br>and his / her institution

Prof. Thomas Konrad
konradt@ukzn.ac.za
University of KwaZulu-Natal

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD, N/A)?

PhD

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

Yes

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Abstract content <br> &nbsp; (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>

We consider the problem of tracking the evolution of a single quantum system when the dynamics are not precisely known, via a sequential measurement protocol. We encode the limited knowledge of the dynamical parameters in a classical system which is coupled to an estimate of
the quantum state in order to form a hybrid quantum-classical system. The estimated hybrid state is updated using information obtained from sequential measurements on the quantum system and after a sufficient waiting period, the dynamical parameter can be determined. Convergence of the estimated hybrid state to the true state is demonstrated using numerical simulations.