133 citations · 959 across the 28 of their papers we have counts for
28 papers
Stringent Constraints on Spin-Spin-Velocity-Dependent Exotic Interactions with a Levitated Magnet Force Sensor
Kenan Tian, Siwen Chen, Lei Wang +12
Exotic spin-spin-velocity-dependent interactions, predicted in extensions of the Standard Model involving new bosonic fields, could resolve fundamental puzzles from dark matter to…
Quantum relaxometry for detecting biomolecular interactions with single NV centers
Min Li, Qi Zhang, Xi Kong +14
The investigation of biomolecular interactions at the single-molecule level has emerged as a pivotal research area in life science, particularly through optical, mechanical, and el…
Constraints on Velocity and Spin Dependent Exotic Interaction at the Millimeter Scale with a Diamagnetic-levitated Force Sensor
Kenan Tian, Yuanji Sheng, Rui Li +8
Light bosons, beyond the standard model and as prominent candidates for dark matter, can mediate velocity and spin dependent exotic interaction between electron spins and nucleons.…
Search of High-Frequency Variations of Fundamental Constants Using Spin-based Quantum Sensors
Xi Kong, Yuke Zhang, Chenyu Ji +6
This study presents a novel method using spin quantum sensors to explore temporal variations of fundamental constants, significantly expanding the frequency range and providing con…
Single-molecule Scale Magnetic Resonance Spectroscopy using Nitrogen-Vacancy Centers in Diamond
Jiangfeng Du, Fazhan Shi, Xi Kong +2
Single-molecule technology stands as a powerful tool, enabling the characterization of intricate structural and dynamic information that would otherwise remain concealed within the…
Discovery of an anomalous non-evaporating sub-nanometre water layer in open environment
Zhijie Li, Xi Kong, Haoyu Sun +8
Water exhibits complex behaviors as a result of hydrogen bonding, and low-dimensional confined water plays a key role in material science, geology, and biology science. Conventiona…
Phased Geometric Controls of V-Shaped Three-Level System for Zero-field Quantum Sensing
Zhijie Li, Xiangyu Ye, Xi Kong +6
Here we propose and demonstrate a phased geometric control protocol for zero-field double quantum gates in a V-shaped three-level spin system. This method utilizes linearly polariz…
Sensing orbital hybridization of graphene-diamond interface with a single spin
Yucheng Hao, Zhiping Yang, Zeyu Li +13
Interfacial interactions are crucial in a variety of fields and can greatly affect the electric, magnetic, and chemical properties of materials. Among them, interface orbital hybri…
99.92%-Fidelity CNOT Gates in Solids by Filtering Time-dependent and Quantum Noises
Tianyu Xie, Zhiyuan Zhao, Shaoyi Xu +6
Inevitable interactions with the reservoir largely degrade the performance of non-local gates, which hinders practical quantum computation from coming into existence. Here we exper…
Sub-nanotesla Sensitivity at the Nanoscale with a Single Spin
Zhiyuan Zhao, Xiangyu Ye, Shaoyi Xu +7
High-sensitivity detection of microscopic magnetic field is essential in many fields. Good sensitivity and high spatial resolution are mutually contradictory in measurement, which…
Lens-free Optical Detection of Thermal Motion of a Sub-millimeter Sphere Diamagnetically Levitated in High Vacuum
Fang Xiong, Peiran Yin, Tong Wu +8
Levitated oscillators with millimeter or sub-millimeter size are particularly attractive due to their potential role in studying various fundamental problems and practical applicat…
Beating the Standard Quantum Limit under Ambient Conditions with Solid-State Spins
Tianyu Xie, Zhiyuan Zhao, Xi Kong +10
Precision measurement plays a crucial role in all fields of science. The use of entangled sensors in quantum metrology improves the precision limit from the standard quantum limit…
Searching spin-mass interaction using a diamagnetic levitated magnetic resonance force sensor
Fang Xiong, Tong Wu, Yingchun Leng +8
Axion-like particles (ALPs) are predicted to mediate exotic interactions between spin and mass. We propose an ALP-searching experiment based on the levitated micromechanical oscill…
Mechanical dissipation below 1Hz with a cryogenic diamagnetic-levitated micro-oscillator
Yingchun Leng, Rui Li, Xi Kong +10
Ultralow dissipation plays an important role in sensing applications and exploring macroscopic quantum phenomena using micro-and nano-mechanical systems. We report a diamagnetic-le…
Room temperature test of the Continuous Spontaneous Localization model using a levitated micro-oscillator
Di Zheng, Yingchun Leng, Xi Kong +9
The Continuous Spontaneous Localization (CSL) model predicts a tiny break of energy conservation via a weak stochastic force acting on physical systems, which triggers the collapse…
Structural analysis of nuclear spin clusters via two-dimensional nanoscale nuclear magnetic resonance spectroscopy
Zhiping Yang, Xi Kong, Zhijie Li +9
Two-dimensional Nuclear Magnetic Resonance (NMR) is essential in molecular structure determination. The Nitrogen-Vacancy (NV) center in diamond has been proposed and developed as a…
Floquet dynamical quantum phase transitions
Kai Yang, Longwen Zhou, Wenchao Ma +8
Dynamical quantum phase transitions (DQPTs) are manifested by time-domain nonanalytic behaviors of many-body systems.Introducing a quench is so far understood as a typical scenario…
Observation of Non-Markovianity at Room Temperature by Prolonging Entanglement in Solids
Shijie Peng, Xiangkun Xu, Kebiao Xu +7
The non-Markovia dynamics of quantum evolution plays an important role in open quantum sytem. However, how to quantify non-Markovian behavior and what can be obtained from non- Mar…
Mesoscopic magnetic resonance spectroscopy with a remote spin sensor
Tianyu Xie, Fazhan Shi, Sanyou Chen +12
Quantum sensing based on nitrogen-vacancy (NV) centers in diamond has been developed as a powerful tool for microscopic magnetic resonance. However, the reported sensor-to-sample d…
Atomic-scale structure analysis of a molecule at a (6-nanometer) ice crystal
Xi Kong, Fazhan Shi, Zhiping Yang +4
Water is the most important solvent in nature. It is a crucial issue to study interactions among water molecules. Nuclear magnetic resonance (NMR) spectroscopy is one of the most p…
Direct measurement of topological numbers with spins in diamond
Fei Kong, Chenyong Ju, Ying Liu +9
Topological numbers can characterize the transition between different topological phases, which are not described by Landau's paradigm of symmetry breaking. Since the discovery of…
Experimental test of non-classicality of quantum mechanics using an individual atomic solid-state quantum system
Xi Kong, Mingjun Shi, Mengqi Wang +12
Quantum mechanics provides a statistical description about nature, and thus would be incomplete if its statistical predictions could not be accounted for some realistic models with…
Towards chemical structure resolution with nanoscale nuclear magnetic resonance spectroscopy
Xi Kong, Alexander Stark, Jiangfeng Du +2
Nuclear magnetic resonance (NMR) spectroscopy has approached the limit of single molecule sensitivity, however the spectral resolution is currently insufficient to obtain detailed…
Sensing and atomic-scale structure analysis of single nuclear spin clusters in diamond
Fazhan Shi, Xi Kong, Pengfei Wang +4
Single-molecule nuclear magnetic resonance (NMR) is a crown-jewel challenge in the field of magnetic resonance spectroscopy and has important applications in chemical analysis and…