Quantum Information Seminar: Sophie Schrimer, Swansea University

  • Date: 01/16/2012
  • Time: 15:00
Lecturer(s):
Sophie Schrimer, Swansea University
Location: 

University of Calgary

Topic: 

Quantum System Identification: Hamiltonian tomography and decoherence estimation
from noisy time series data

Description: 

Abstract:  I will discuss ways to characterize the dynamics of a quantum
system given a restricted set of initial states that can be prepared and a very
limited set of available measurements. I will first discuss strategies for
Hamiltonian identification using Bayesian parameter estimation from noisy time
series data, level structure identification and finally Hamiltonian
reconstruction. I will then consider how to generalize this approach to open
systems in special cases, e.g., to estimate dephasing rates, and possible
alternatives.

References -- recent: http://arxiv.org/abs/1012.4593
 http://arxiv.org/abs/0911.1367
 http://arxiv.org/abs/0911.5429 
http://arxiv.org/abs/0805.2725
 http://arxiv.org/abs/quant-ph/0702123 
and a link to the first one we did on this for 2-level
systems: http://www.damtp.cam.ac.uk/user/sgs29/research/papers/PRA69n050306R.pdf

Schedule: 

3-4 pm in SB142, Institute for Quantum Information Science University of Calgary.

Organizers:

Neil Lovett

Sponsor: