61 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Science and Technology of ChinaCN14 papers
- Guilin University of TechnologyCN5 papers
- Peking UniversityCN5 papers
- Guilin University of Electronic TechnologyCN4 papers
- Collaborative Innovation Center of Quantum MatterCN3 papers
- Chinese Academy of SciencesCN2 papers
- Hunan Normal UniversityCN2 papers
- Astronomical Institute of the Slovak Academy of SciencesSK1 paper
- Beijing Normal UniversityCN1 paper
- Capital Normal UniversityCN1 paper
- Center For Remote Sensing (United States)US1 paper
- Center for Theoretical PhysicsPL1 paper
26 papers · 1 filter
Super-Heisenberg Scaling Using Nonlinear Quantum Scrambling
Dong Xie, Chunling Xu
Super-Heisenberg scaling, which scales as with in terms of the number of particles or in terms of the evolution time , is better than Heisenberg scal…
Dispersive Qubit Readout of Temperature
Dong Xie, Chunling Xu
Squeezed light can exponentially increase the signal-to-noise ratio (SNR) of dispersive qubit readout, especially using a combination of injected external squeezing (IES) and intra…
Nonreciprocal Quantum Sensing
Dong Xie, Chunling Xu
Nonreciprocity can not only generate quantum resources, but also shield noise and reverse interference from driving signals. We investigate the advantages of nonreciprocal coupling…
Thermometry with a Dissipative Heavy Impurity
Dong Xie, Chunling Xu
Improving the measurement precision of low temperature is significant in fundamental science and advanced quantum technology application. However, the measurement precision of temp…
Quantum estimation of tripartite coupling in Spin-Magnon-Mechanical Hybrid Systems
Dong Xie, Chunling Xu
Tripartite interactions play a fundamental role in the quantum information processing and quantum technology. However, it is generally difficult to realize strong tripartite coupli…
Exceptional point in self-consistent Markovian master equations
Dong Xie, Chunling Xu
Exceptional point (EP) denotes the non-Hermitian degeneracy, in which both eigenvalues and eigenstates become identical. By the conventional local Markovian master equation, EP can…
Quantum metrology with quantum Wheatstone bridge composed of Bose systems
Dong Xie, Chunling Xu, Xiwei Yao +1
The quantum version of a special classical Wheatstone bridge built with a boundary-driven spin system has recently been proposed. We propose a quantum Wheatstone bridge consisting…
Quantum estimation of Kerr nonlinearity in driven-dissipative systems
Dong Xie, Chunling Xu, An Min Wang
We mainly investigate the quantum measurement of Kerr nonlinearity in the driven-dissipative system. Without the dissipation, the measurement precision of the nonlinearity paramete…
Quantum thermometry in diffraction-limited systems
Dong Xie, Chunling Xu, An Min Wang
We investigate the ultimate quantum limit of resolving the temperatures of two thermal sources affected by the diffraction. More quantum Fisher information can be obtained with the…
Quantum phases transition revealed by the exceptional point in Hopfield-Bogoliubov matrix
Dong Xie, Chunling Xu, An Min Wang
We use the exceptional point in Hopfield-Bogoliubov matrix to find the phase transition points in the bosonic system. In many previous jobs, the excitation energy vanished at the c…
Quantum Thermometry with a Dissipative Quantum Rabi System
Dong Xie, Chunling Xu, An Min Wang
Dissipative quantum Rabi System, a finite-component system composed of a single two-level atom interacting with an optical cavity field mode, exhibits a quantum phase transition, w…
Parameter estimation and quantum entanglement in PT symmetrical cavity magnonics system
Dong Xie, Chunling Xu, An min Wang
We investigate the parameter estimation in a magnon-cavity-magnon coupled system. PT symmetrical two magnons system can be formed in the gain magnetic materials by the adiabatic el…
Ohmic Reservoir-based non-Markovianity and Quantum Speed Limit Time
Hong-Mei Zou, Rongfang Liu, Dan Long +2
We study the non-Markovianity and quantum speedup of a two-level atom (quantum system of interest) in a dissipative Jaynes-Cumming model, where the atom is embedded in a single-mod…
Quantum speed-up process of atom in dissipative cavity
Hong-Mei Zou, Jianhe Yang, Danping Lin +1
In this work, we obtain an analytical representation of the density operator of an atom in dissipative cavity when the reservoir is at zero temperature and the total number of exci…
Enhancing parameter estimation precision in dissipative environment with two-photon driving
Dong Xie, Chunling Xu
We investigate the frequency estimation of an optical field suffering from an unavoidable dissipative environment. Generally, dissipative noises greatly reduce the precision. Here,…
Optimal control for multi-parameter quantum estimation with time-dependent Hamiltonians
Dong Xie, Chunling Xu
We investigate simultaneous estimation of multi-parameter quantum estimation with time-dependent Hamiltonians. We analytically obtain the maximal quantum Fisher information matrix…
Multi-parameter Quantum Magnetometry with Spin States in coarsened measurement reference
Dong Xie, Chunling Xu
We investigate the simultaneous estimation of the intensity and the orientation of a magnetic field by the multi-parameter quantum Fisher information matrix. A general expression i…
Enhancing precision of damping rate by PT symmetric Hamiltonian
Dong Xie, Chunling Xu
We utilize quantum Fisher information to investigate the damping parameter precision of a dissipative qubit. PT symmetric non-Hermitian Hamiltonian is used to enhance the parameter…
Quantum estimation of detection efficiency with no-knowledge quantum feedback
Dong Xie, Chunling Xu, Jianyong Chen +1
We investigate that no-knowledge measurement-based feedback control is utilized to obtain the estimation precision of the detection efficiency. For the feedback operators that conc…
High-dimensional cryptographic quantum parameter estimation
Dong Xie, Chunling Xu, Jianyong Chen +1
We investigate cryptographic quantum parameter estimation with a high-dimensional system that allows only Bob (Receiver) to access the result and achieve optimal parameter precisio…
Michelson interferometer for measuring temperature
Dong Xie, Chunling Xu, Anmin wang
We investigate that temperature can be measured by a modified Michelson interferometer, where at least one reflected mirror is replaced by a thermalized sample. Both of two mirrors…
Quantum metrology in coarsened measurement reference
Dong Xie, Chunling Xu, Anmin Wang
We investigate the role of coarsened measurement reference in quantum metrology. Coarsened measurement reference comes from the coarsened reference time and basis. When the measure…
Optimal Quantum Thermometry by Dephasing
Dong Xie, Chunling Xu, Anmin Wang
Decoherence often happens in the quantum world. We try to utilize quantum dephasing to build an optimal thermometry. By calculating the Cramr-Rao bound, we prove that th…
Gravitational time dilation induced decoherence during spontaneous emission
Dong Xie, Chunling Xu, Anmin Wang
We investigate decoherence of quantum superpositions induced by gravitational time dilation and spontaneous emission between two atomic levels. It has been shown that gravitational…