129 citations · 362 across the 18 of their papers we have counts for
18 papers
Statistics-governed dynamical scaling in interacting anyonic chains
Xu-Chen Yang, Botao Wang, Jianpeng Liu +3
Particle statistics impose fundamental constraints on nonequilibrium quantum dynamics, yet it remains an open question whether anyonic statistics can lead to emergent dynamical sca…
Emergence of topological states in relaxation dynamics of interacting bosons
Wang Huang, Xu-Chen Yang, Rui Cao +3
Topological concepts have been employed to understand the ground states of many strongly correlated systems, but it is still quite unclear if and how topology manifests itself in t…
Waveguiding valley excitons in monolayer transition metal dicalcogenides by dielectric interfaces in the substrate
Xu-Chen Yang, Hongyi Yu, Wang Yao
In monolayers of the semiconducting transition metal dichalcogenides, the electron-hole exchange interaction splits the exciton dispersion into a massive transverse branch, and a l…
Chiral excitonics in monolayer semiconductors on patterned dielectric
Xu-Chen Yang, Hongyi Yu, Wang Yao
Monolayer transition metal dichalcogenides feature tightly bound bright excitons at the degenerate valleys, where electron-hole Coulomb exchange interaction strongly couples the va…
When does reinforcement learning stand out in quantum control? A comparative study on state preparation
Xiao-Ming Zhang, Zezhu Wei, Raza Asad +2
Reinforcement learning has been widely used in many problems, including quantum control of qubits. However, such problems can, at the same time, be solved by traditional, non-machi…
Tunable charge qubit based on barrier-controlled triple quantum dots
Xu-Chen Yang, Guo Xuan Chan, Xin Wang
We present a theoretical proposal of a tunable charge qubit, hosted in triple quantum dots. The manipulation is solely performed by changing the heights of the two potential barrie…
Leakage and sweet spots in triple-quantum-dot spin qubits: A molecular-orbital study
Chengxian Zhang, Xu-Chen Yang, Xin Wang
A triple-quantum-dot system can be operated as either an exchange-only qubit or a resonant-exchange qubit. While it is generally believed that the decisive advantage of the resonan…
Fast pulse sequences for dynamically corrected gates in single-triplet qubits
Robert E. Throckmorton, Chengxian Zhang, Xu-Chen Yang +3
We present a set of experimentally feasible pulse sequences that implement any single-qubit gate on a singlet-triplet spin qubit and demonstrate that these new sequences are up to…
Neural-network-designed pulse sequences for robust control of singlet-triplet qubits
Xu-Chen Yang, Man-Hong Yung, Xin Wang
Composite pulses are essential for universal manipulation of singlet-triplet spin qubits. In the absence of noise, they are required to perform arbitrary single-qubit operations du…
Magic angle for barrier-controlled double quantum dots
Xu-Chen Yang, Xin Wang
We show that the exchange interaction of a singlet-triplet spin qubit confined in double quantum dots, when being controlled by the barrier method, is insensitive to a charged impu…
Suppression of charge noise using barrier control of a singlet-triplet qubit
Xu-Chen Yang, Xin Wang
It has been recently demonstrated that a singlet-triplet spin qubit in semiconductor double quantum dots can be controlled by changing the height of the potential barrier between t…
Randomized benchmarking of barrier versus tilt control of a singlet-triplet qubit
Chengxian Zhang, Robert E. Throckmorton, Xu-Chen Yang +3
Decoherence due to charge noise is one of the central challenges in using spin qubits in semiconductor quantum dots as a platform for quantum information processing. Recently, it h…
Energy spectrum, exchange interaction and gate crosstalk in a pair of double-quantum-dot system: a molecular orbital calculation
Xu-Chen Yang, Xin Wang
We present a theoretical study of a four-electron four-quantum-dot system based on molecular orbital methods, which hosts a pair of singlet-triplet spin qubits. We explicitly take…
Benchmarking of dynamically corrected gates for the exchange-only spin qubit in noise environment
Chengxian Zhang, Xu-Chen Yang, Xin Wang
We study theoretically the responses of the dynamically corrected gates to time-dependent noises in the exchange-only spin qubit system. We consider noises having spectra pro…
Noise filtering of composite pulses for singlet-triplet qubits
Xu-Chen Yang, Xin Wang
Semiconductor quantum dot spin qubits are promising candidates for quantum computing. In these systems, the dynamically corrected gates offer considerable reduction of gate errors…
Simulation of the many-body dynamical quantum Hall effect in an optical lattice
Dan-Wei Zhang, Xu-Chen Yang
We propose an experimental scheme to simulate the many-body dynamical quantum Hall effect with ultra-cold bosonic atoms in a one-dimensional optical lattice. We first show that the…
Controllable high-fidelity quantum state transfer and entanglement generation in circuit QED
Peng Xu, Xu-Chen Yang, Feng Mei +1
We propose a scheme to realize controllable quantum state transfer and entanglement generation among transmon qubits in the typical circuit QED setup based on adiabatic passage. Th…
Simulating dynamical quantum Hall effect with superconducting qubits
Xu-Chen Yang, Dan-Wei Zhang, Peng Xu +2
We propose an experimental scheme to simulate the dynamical quantum Hall effect and the related interaction-induced topological transition with a superconducting-qubit array. We sh…