78 citations · 250 across the 11 of their papers we have counts for
13 papers
Observation of quantum multi-Mpemba effect in a trapped-ion system
Gang Xia, Yu-Jie Zheng, Jing Huang +9
The quantum Mpemba effect (ME) in Markovian systems is conventionally explained by a smaller overlap between the initial state and the slowest decay mode (SDM). Such state, initial…
Mode-resolved thermometry of trapped ion with Deep Learning
Yi Tao, Ting Chen, Yi Xie +5
In trapped ion system, accurate thermometry of ion is crucial for evaluating the system state and precisely performing quantum operations. However, when the motional state of a sin…
Observation of quantum strong Mpemba effect
Jie Zhang, Gang Xia, Chun-Wang Wu +10
An ancient and counterintuitive phenomenon know as the Mpemba effect (water can cool faster when initially heated up) showcases the critical role of initial conditions in relaxatio…
Accelerating relaxation through Liouvillian exceptional point
Yan-Li Zhou, Xiao-Die Yu, Chun-Wang Wu +4
We investigate speeding up of relaxation of Markovian open quantum systems with the Liouvillian exceptional point (LEP), where the slowest decay mode degenerate with a faster decay…
Observation of quantum temporal correlations well beyond Luders bound
Chun-Wang Wu, Man-Chao Zhang, Yan-Li Zhou +10
Quantum correlations, both spatial and temporal, are the central pillars of quantum mechanics. Over the last two decades, a big breakthrough in quantum physics is its complex exten…
Experimental violation of Leggett-Garg inequality in a three-level trapped-ion system
Tianxiang Zhan, Chunwang Wu, Manchao Zhang +9
Leggett-Garg inequality (LGI) studies the temporal correlation in the evolution of physical systems. Classical systems obey the LGI but quantum systems may violate it. The extent o…
Self-Testing of a Single Quantum System: Theory and Experiment
Xiao-Min Hu, Yi Xie, Atul Singh Arora +13
Certifying individual quantum devices with minimal assumptions is crucial for the development of quantum technologies. Here, we investigate how to leverage single-system contextual…
Parallel-Electromagnetically-Induced-Transparency Near Ground-State Cooling of a Trapped-ion Crystal
Jie Zhang, Man-Chao Zhang, Yi Xie +8
We theoretically propose and experimentally demonstrate a parallel-electromagnetically-induced transparency (parallel-EIT) cooling technique for ion crystals in the Paul trap. It h…
Investigation of the Effect of Quantum Measurement on Parity-Time Symmetry
Wei-Chen Wang, Yi Xie, Man-Chao Zhang +6
Symmetry, including the parity-time ()-symmetry, is a striking topic, widely discussed and employed in many fields. It is well-known that quantum measurement can dest…
Fast Laser Cooling Using Optimal Quantum Control
Xie-Qian Li, Shuo Zhang, Jie Zhang +3
Cooling down a trapped ion into its motional ground state is a central step for trapped ions based quantum information processing. State of the art cooling schemes often work under…
Estimation of the Laser Frequency Nosie Spectrum by Continuous Dynamical Decoupling
Manchao Zhang, Yi Xie, Jie Zhang +5
Decoherence induced by the laser frequency noise is one of the most important obstacles in the quantum information processing. In order to suppress this decoherence, the noise powe…
Weak-to-strong transition of quantum measurement in a trapped-ion system
Yiming Pan, Jie Zhang, Eliahu Cohen +3
Quantum measurement remains a puzzle through its stormy history from the birth of quantum mechanics to state-of-the-art quantum technologies. Two complementary measurement schemes…
Scheme and Experimental Demonstration of Fully Atomic Weak Value Amplification
Chun-wang Wu, Jie Zhang, Yi Xie +4
In this paper, we explore the possibilities of realizing weak value amplification (WVA) using purely atomic degrees of freedom. Our scheme identifies the internal electronic states…