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Updated: Aug 13, 2025

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
Published on: April 4, 2017
Experimental quantum Hamiltonian identification from measurement time traces
Shi-Yao Hou1, Hang Li2, Gui-Lu Long2
1Microsystem & Terahertz Research Center and Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China; State Key Laboratory of Low-dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China; The Innovative Center of Quantum Matter, Beijing 100084, China; Tsinghua National Laboratory of Information Science and Technology, Beijing 100084, China.
Abstract:
Identifying Hamiltonian of a quantum system is of vital importance for quantum information processing. In this article, we realized and benchmarked a quantum Hamiltonian identification algorithm recently proposed (Zhang and Sarovar, 2014). we realized the algorithm on a liquid nuclear magnetic resonance quantum information processor using two types of working media with different forms of Hamiltonian. Our experiment realized the quantum identification algorithm based on free induction decay signals. We also showed how to process data obtained in a practical experiment. We studied the influence of decoherence by numerical simulations. Our experiments and simulations demonstrate that the algorithm is effective and robust.
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