14 citations · 45 across the 14 of their papers we have counts for
14 papers
Leakage Suppression in Quantum Control via Static Parameter Offsets
Ting Lin, Zi-Hao Qin, Zheng-Yuan Xue +1
High-fidelity quantum operations require the system dynamics to be strictly confined to the computational subspace. In practice, however, control fields inevitably couple to leakag…
Universal Robust Quantum Gates via Doubly Geometric Control
Hai Xu, Tao Chen, Junkai Zeng +5
Geometric quantum computation offers a potential route to fault-tolerant quantum information processing by exploiting the global nature of geometric phases. However, achieving cont…
Determining a magnetic Schrödinger equation by a single far-field measurement
Chaohua Duan, Zhen Xue
This paper investigates the inverse scattering problem for the magnetic Schrödinger equation. We first establish the well-posedness of the direct problem through a variational appr…
Variational Quantum Algorithm for Solving the Liouvillian Gap
Xu-Dan Xie, Zheng-Yuan Xue, Dan-Bo Zhang
In open quantum systems, the Liouvillian gap characterizes the relaxation time toward the steady state. However, accurately computing this quantity is notoriously difficult due to…
Robustness Enhancement of Universal Noncyclic Geometric Gates via Evolution Optimization
Zi-Hao Qin, Yan Liang, Yi-Han Yuan +2
Noncyclic geometric gates aim to overcome the stringent constraints of conventional cyclic conditions and enhance the flexibility in evolution choice. Conceptually, they can also a…
Error-mitigated Geometric Quantum Control over an Oscillator
Ming-Jie Liang, Tao Chen, Zheng-Yuan Xue
Quantum information is very fragile to environmentally and operationally induced imperfections. Therefore, the construction of practical quantum computers requires quantum error-co…
High-fidelity initialization a logical qubit with multiple injections
Zhi-Cheng He, Zheng-Yuan Xue
Quantum error correction represents a significant advancement in large-scale quantum computing. However, achieving fault-tolerant implementations of non-Clifford logical gates with…
Error-mitigated initialization of surface codes with non-Pauli stabilizers
Zhi-Cheng He, Zheng-Yuan Xue
Quantum error correction represents a significant milestone in large-scale quantum computing, with the surface code being a prominent strategy due to its high error threshold and e…
Determining non-Hermitian parent Hamiltonian from a single eigenstate
Xu-Dan Xie, Zheng-Yuan Xue, Dan-Bo Zhang
A quantum state for being an eigenstate of some local Hamiltonian should be constraint by zero energy variance and consequently, the constraint is rather strong that a single eigen…
Nonadiabatic geometric quantum gates with on-demand trajectories
Yan Liang, Zheng-Yuan Xue
High-fidelity quantum gates are an essential prerequisite for large-scale quantum computation. When manipulating practical quantum systems, environmentally and operationally induce…
State-independent geometric quantum gates via nonadiabatic and noncyclic evolution
Yue Chen, Li-Na Ji, Zheng-Yuan Xue +1
Geometric phases are robust to local noises and the nonadiabatic ones can reduce the evolution time, thus nonadiabatic geometric gates have strong robustness and can approach high…
Accelerated super-robust nonadiabatic holonomic quantum gates
Pu Shen, Yan Liang, Tao Chen +1
The nonadiabatic holonomic quantum computation based on three-level systems has wide applicability experimentally due to its simpler energy level structure requirement and inherent…
State-independent Nonadiabatic Geometric Quantum Gates
Yan Liang, Pu Shen, Li-Na Ji +1
Quantum computation has demonstrated advantages over classical computation for special hard problems, where a set of universal quantum gates is essential. Geometric phases, which h…
Exact quantum dynamics for two-level systems with time-dependent driving
Zhi-Cheng He, Yi-Xuan Wu, Zheng-Yuan Xue
It is well-known that time-dependent Schrödinger equation can only be exactly solvable in very rare cases, even for two-level quantum systems. Therefore, finding exact quantum dyna…