Quantum Information Seminar: Sophie Schrimer, Swansea University
- Date: 01/16/2012
- Time: 15:00
University of Calgary
Quantum System Identification: Hamiltonian tomography and decoherence estimation
from noisy time series data
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
3-4 pm in SB142, Institute for Quantum Information Science University of Calgary.
Neil Lovett