4 papers
Simultaneous calibration of rotation and phase errors in a single experiment
Tien D. Nguyen, Hung Q. Nguyen
In weakly anharmonic qubits, coherent control errors take two generic forms -- over/under-rotation and phase errors -- whose suppression normally requires iterated experiments. We…
Variational Quantum Eigensolver: A Comparative Analysis of Classical and Quantum Optimizer Methods
Duc-Truyen Le, Vu-Linh Nguyen, Cong-Ha Nguyen +2
In this study, we investigated the Variational Quantum Eigensolver (VQE) application for the Ising model as a testbed model, in which we thoroughly delved into several optimizers,…
Coexistence of CHSH Nonlocality and KCBS Contextuality in a Single Quantum State
Khai Nguyen, Duc M. Doan, Hung Q. Nguyen
Contextuality and nonlocality are distinct manifestations at the foundation of quantum mechanics, yet their coexistence within a single quantum state remains subtle. In a hybrid CH…
Harnessing graph state resources for robust quantum magnetometry under noise
Phu Trong Nguyen, Trung Kien Le, Hung Q. Nguyen +1
Precise measurement of magnetic fields is essential for various applications, such as fundamental physics, space exploration, and biophysics. Although recent progress in quantum en…