Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session W38: Control and Characterization Tools for Quantum Error Mitigation
8:00 AM–10:48 AM,
Friday, March 6, 2020
Room: 607
Sponsoring
Unit:
DQI
Chair: Timothy Proctor, Sandia National Laboratories
Abstract: W38.00012 : Assigning Hamiltonians to Open Quantum Systems*
Presenter:
Eugen Dumitrescu
(Oak Ridge National Lab)
Authors:
Eugen Dumitrescu
(Oak Ridge National Lab)
Pavel Lougovski
(Oak Ridge National Lab)
Building on recent efforts illustrating that one may characterize a closed system of k-local interacting particles, we study the task of identifying a local-Hamiltonian in the presence of additional environmental interactions. Beginning with a candidate system consisting of an XX-interacting spin chain subject to thermal relaxation noise, we show how both the Hamiltonian and the underlying Lindbladian can models can be inferred. Moreover, we study open-systems learning in the settings where one is given i) access to steady states, ii) dynamical information, as well as iii) in the presence of stochastic noise on the measurement output.
*The authors acknowledge DOE ASCR funding under the Quantum Computing Application Teams program, FWP number ERKJ347.
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