PIRSA ID: 19110145

Series: Perimeter Institute Quantum Discussions

Event Type: Seminar

Scientific Area(s): Quantum Information Other

End date: 2019-11-27

Speaker(s): Zhi Li

November 20, 2019 at 4:00 PM

Time Room

We show that a generic many-body Hamiltonian can be uniquely reconstructed from a single pair of initial-final states under the unitary time evolution. Interesting it is, this method is not practical due to its high complexity. We then propose a practical method for Hamiltonian reconstruction from multiple pairs of initial-final states. The stability of this method is mathematically proved and numerically verified.

This work is joint with Liujun Zou and Timothy Hsieh.