24 citations · 61 across the 5 of their papers we have counts for
6 papers
Optimal robust single-qubit gates in superconducting quantum processors
Tangyou Huang, Anuj Aggarwal, Jingjun Zhu +11
Fault-tolerant quantum computing requires high-fidelity quantum gates that are resilient to control errors and device imperfections. Here, we develop energy-optimal control pulses…
Optimal Control by Variational Quantum Algorithms
Tangyou Huang, Jing-Jun Zhu, Zhong-Yi Ni
Hybrid quantum-classical algorithms hold great promise for solving quantum control problems on near-term quantum computers. In this work, we employ the hybrid framework that integr…
Optimal control and ultimate bounds of 1:2 nonlinear quantum systems
Jing-jun Zhu, Kaipeng Liu, Xi Chen +1
Using optimal control, we establish and link the ultimate bounds in time (referred to as quantum speed limit) and energy of two- and three-level quantum nonlinear systems which fea…
Robust quantum control by smooth quasi-square pulses
Jing-jun Zhu, Xavier Laforgue, Xi Chen +1
Robust time-optimal control is known to feature constant (square) pulses. We analyze fast adiabatic dynamics that preserve robustness by using alternative smooth quasi-square pulse…
Fast-forward scaling of atom-molecule conversion in Bose-Einstein condensates
JingJun Zhu, Xi Chen
Robust stimulated Raman exact passages are requisite for controlling nonlinear quantum systems, with the wide applications ranging from ultracold molecules, non-linear optics to su…
Robust Control of Unstable Non-linear Quantum Systems
Jing-Jun Zhu, Xi Chen, Hans-Rudolf Jauslin +1
Adiabatic passage is a standard tool for achieving robust transfer in quantum systems. We show that, in the context of driven nonlinear Hamiltonian systems, adiabatic passage becom…