QuIST Seminar - Lin Tian, UC Merced

Lin Tian QuIST

Event Date

1127 Kemper Hall

Speaker: Lin Tian, UC Merced

Title: Quantum many-body state preparation in a Jaynes-Cummings lattice

Abstract: Preparing quantum many-body states with high fidelity is an intriguing question in quantum computing and quantum simulation.  The challenge in preparing a desired many-body state results from the lack of knowledge of the energy spectrum, the rapid decrease of the energy gap with system size, and the intrinsic complexity of many-body states in strongly-correlated systems.  Here we will discuss several quantum control approaches for the generation of many-body states in a Jaynes-Cummings (JC) lattice. We will compare the effectiveness of these approaches and the possible connection to the quantum speed limit. As a JC lattice can be implemented in practical devices such as superconducting quantum systems, defects in optical cavities, and trapped ions, it can be an ideal testbed to study questions in many-body state preparation.


1. K. Cai, P. Parajuli, C. Wong, G.-L. Long, and L. Tian, Npj Quantum Inf.  7, 96 (2021).

2. P. Parajuli, A. Govindarajan, and L. Tian, to appear Sci. Rep. (2023)

3. K. Cai, P. Parajuli, A. Govindarajan, and L. Tian, in preparation.