435 citations · 2.2k across the 46 of their papers we have counts for
47 papers
Experimental observation of Dirac exceptional point
Yang Wu, Dongfanghao Zhu, Yunhan Wang +2
The energy level degeneracies, also known as exceptional points (EPs), are crucial for comprehending emerging phenomena in materials and enabling innovative functionalities for dev…
Programmable simulation of high-order exceptional point with a trapped ion
Yue Li, Yang Wu, Yuqi Zhou +9
The nontrivial degeneracies in non-Hermitian systems, exceptional points (EPs), have attracted extensive attention due to intriguing phenomena. Compared with commonly observed seco…
Experimental investigation of coherent ergotropy in a single spin system
Zhibo Niu, Yang Wu, Yunhan Wang +2
Ergotropy is defined as the maximum amount of work that can be extracted through a unitary cyclic evolution. It plays a crucial role in assessing the work capacity of a quantum sys…
Experimental test of the Crooks fluctuation theorem in a single nuclear spin
Wei Cheng, Wenquan Liu, Zhibo Niu +3
We experimentally test the Crooks fluctuation theorem in a quantum spin system. Our results show that the Crooks fluctuation theorem is valid for different speeds of the nonequilib…
Third-order exceptional line in a nitrogen-vacancy spin system
Yang Wu, Yunhan Wang, Xiangyu Ye +6
The exceptional points (EPs) aroused from the non-Hermiticity bring rich phenomena, such as exceptional nodal topologies, unidirectional invisibility, single-mode lasing, sensitivi…
Observation of the Knot Topology of Non-Hermitian Systems in a Single Spin
Yang Wu, Yunhan Wang, Xiangyu Ye +5
The non-Hermiticity of the system gives rise to distinct knot topology that has no Hermitian counterpart. Here, we report a comprehensive study of the knot topology in gapped non-H…
Experimental test of the Jarzynski equality in a single spin-1 system using high-fidelity single-shot readouts
Wenquan Liu, Zhibo Niu, Wei Cheng +5
The Jarzynski equality (JE), which connects the equilibrium free energy with non-equilibrium work statistics, plays a crucial role in quantum thermodynamics. Although practical qua…
Experimental study on the principle of minimal work fluctuations
Wei Cheng, Wenquan Liu, Yang Wu +5
The central quantity in the celebrated quantum Jarzynski equality is , where is work and is the inverse temperature. The impact of quantum randomness on the fluctu…
Improved Limits on an Exotic Spin- and Velocity-Dependent Interaction at the Micrometer Scale with an Ensemble-NV-Diamond Magnetometer
Diguang Wu, Hang Liang, Man Jiao +5
Searching for exotic interactions provides a path for exploring new particles beyond the standard model. Here, we used an ensemble-NV-diamond magnetometer to search for an exotic s…
Experimental investigation of quantum correlations in a two-qutrit spin system
Yue Fu, Wenquan Liu, Xiangyu Ye +5
We report an experimental investigation of quantum correlations in a two-qutrit spin system in a single nitrogen-vacancy center in diamond at room temperatures. Quantum entanglemen…
Experimental violation of the Leggett-Garg inequality with a single-spin system
Maimaitiyiming Tusun, Wei Cheng, Zihua Chai +4
Investigation the boundary between quantum mechanical description and classical realistic view is of fundamental importance. The Leggett-Garg inequality provides a criterion to dis…
-limited dc Quantum Magnetometry via Flux Modulation
Yijin Xie, Caijin Xie, Yunbin Zhu +8
High-sensitivity magnetometry is of critical importance to the fields of biomagnetism and geomagnetism. However, the magnetometry for the low-frequency signal detection meets the c…
Spin Quantum Heat Engine Quantified by Quantum Steering
Wentao Ji, Zihua Chai, Mengqi Wang +6
Following the rising interest in quantum information science, the extension of a heat engine to the quantum regime by exploring microscopic quantum systems has seen a boom of inter…
Experimental Constraints on Exotic Spin-Dependent Interactions by a Magnetometer with Ensembles of Nitrogen-Vacancy Centers in Diamond
Hang Liang, Man Jiao, Yue Huang +7
Improved constraints on exotic spin-dependent interactions are established at the micrometer scale by a magnetometer with ensembles of nitrogen-vacancy (NV) centers in diamond. A t…
A New Design of Resonant Cavity for the W-band EPR spectrometer
Yu He, Runqi Kang, Zhifu Shi +2
We report a new design of resonant cavity for W-band EPR spectrometer. It suits with both solenoid-type and split-pair magnets. The cavity operates on the TE mode, where th…
Observation of a new interaction between a single spin and a moving mass
Xing Rong, Man Jiao, Maosen Guo +2
Searching for physics beyond the standard model is crucial for understanding the mystery of the universe, such as the dark matter. We utilized a single spin in a diamond as a senso…
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…
Experimental Constraint on an Exotic Parity-Odd Spin- and Velocity-Dependent Interaction with a Single Electron Spin Quantum Sensor
Man Jiao, Maosen Guo, Xing Rong +2
n improved laboratory bound on the exotic spin- and velocity-dependent interaction at micrometer scale is established with a single electron spin quantum sensor. The single electro…
Quantum simulation for three-dimensional chiral topological insulator
Wentao Ji, Lin Zhang, Mengqi Wang +8
Quantum simulation, as a state-of-art technique, provides the powerful way to explore topological quantum phases beyond natural limits. Nevertheless, a previously-not-realized thre…
Single DNA Electron Spin Resonance Spectroscopy in Aqueous Solutions
Fazhan Shi, Fei Kong, Pengju Zhao +13
Magnetic resonance spectroscopy of single biomolecules under near-physiological conditions may substantially advance understanding of biological function, yet remains very challeng…
Nanoscale magnetic resonance imaging of proteins in a single cell
Pengfei Wang, Sanyou Chen, Maosen Guo +10
Magnetic resonance imaging (MRI) is a non-invasive and label-free technique widely used in medical diagnosis and life science research, and its success has benefited greatly from c…
Dynamically encircling an exceptional point in a real quantum system
Wenquan Liu, Yang Wu, Chang-Kui Duan +2
The exceptional point, known as the non-Hermitian degeneracy, has special topological structure, leading to various counterintuitive phenomena and novel applications, which are ref…
Experimental sensing quantum atmosphere of a single spin
Kehang Zhu, Zhiping Yang, Qing-Dong Jiang +8
Understanding symmetry-breaking states of materials is a major challenge in the modern physical sciences. Quantum atmosphere proposed recently sheds light on the hidden world of th…
Experimental dissipative quantum sensing
Yijin Xie, Jianpei Geng, Huiyao Yu +3
Quantum sensing utilizes quantum systems as sensors to capture weak signal, and provides new opportunities in nowadays science and technology. The strongest adversary in quantum se…