Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Chinese Academy of SciencesCN4k papers
- University of Chinese Academy of SciencesCN1.4k papers
- Peking UniversityCN592 papers
- Institute of High Energy PhysicsCN426 papers
- Kavli Institute for Theoretical SciencesCN393 papers
- Lanzhou UniversityCN368 papers
- China Center of Advanced Science and TechnologyCN326 papers
- Institute of Modern PhysicsCN283 papers
- Tsinghua UniversityCN258 papers
- Nanjing Normal UniversityCN243 papers
- Beijing Normal UniversityCN230 papers
- International Centre for Theoretical Physics Asia-PacificCN223 papers
23 papers · 2 filters
Singularity of Berry Connections Inhibits the Accuracy of Adiabatic Approximation
Jie Liu, Li-Bin Fu
Adiabatic approximation for quantum evolution is investigated quantitatively with addressing its dependence on the Berry connections. We find that, in the adiabatic limit, the adia…
Mixed-state fidelity and quantum criticality at finite temperature
Paolo Zanardi, H. T. Quan, Xiaoguang Wang +1
We extend to finite temperature the fidelity approach to quantum phase transitions (QPTs). This is done by resorting to the notion of mixed-state fidelity that allows one to compar…
Suppression of decoherence by bath ordering
Jun Jing, H. R. Ma
The dynamics of two coupled spins-1/2 coupled to a spin-bath is studied as an extended model of the Tessieri-Wilkie Hamiltonian \cite{TWmodel}. The pair of spins served as an open…
Quantum Thermodynamic Cycles and quantum heat engines
H. T. Quan, Yu-xi Liu, C. P. Sun +1
In order to describe quantum heat engines, here we systematically study isothermal and isochoric processes for quantum thermodynamic cycles. Based on these results the quantum vers…
Coherent control of photon transmission : slowing light in coupled resonator waveguide doped with Atoms
Lan Zhou, Jing Lu, C. P. Sun
In this paper, we propose and study a hybrid mechanism for coherent transmission of photons in the coupled resonator optical waveguide (CROW) by incorporating the electromagnetical…
Indirect control with quantum accessor (I): coherent control of multi-level system via qubit chain
H. C. Fu, Hui Dong, X. F. Liu +1
Indirect controllability of an arbitrary finite dimensional quantum system (N-dimensional qudit) through a quantum accessor is investigated. Here, The qudit is coupled to a quantum…
Time-dependent Fröhlich transformation approach for two-atom entanglement generated by successive passage through a cavity
Yong Li, C. Bruder, C. P. Sun
Time-dependent Fröhlich transformations can be used to derive an effective Hamiltonian for a class of quantum systems with time-dependent perturbations. We use such a transformatio…
Critical Property of Geometric Phase in the Dicke Model
Gang Chen, Juqi Li, J. -Q. Liang
We obtain the ground-state energy level and associated geometric phase in the Dicke model analytically by means of the Holstein-Primakoff transformation and the boson expansion app…
Quantum Entanglement of Electromagnetic Fields in Non-inertial Reference Frames
Yi Ling, Song He, Weigang Qiu +1
Recently relativistic quantum information has received considerable attention due to its theoretical importance and practical application. Especially, quantum entanglement in non-i…
Controlled splitting of an atomic wave packet
M. Zhang, P. Zhang, M. S. Chapman +1
We propose a simple scheme capable of adiabatically splitting an atomic wave packet using two independent translating traps. Implemented with optical dipole traps, our scheme allow…
Factorization of Dephasing Process in Quantum Open System
Y. B. Gao, C. P. Sun
The fluctuation-dissipation relation is well known for the quantum open system with energy dissipation. In this paper a similar underlying relation is found between the bath fluctu…
Quantum Entanglement in the S=1/2 Spin Ladder with Ring Exchange
Jun-Liang Song, Shi-Jian Gu, Hai-Qing Lin
In this paper we study the concurrence and the block-block entanglement in the spin ladder with four-spin ring exchange by the exact diagonalization method of finite cluste…
Dynamic generation of entangling wave packets in XY spin system with decaying long range couplings
S. Yang, Z. Song, C. P. Sun
We study the dynamic generation of spin entanglement between two distant sites in an XY model with -decay long range couplings. Due to the linear dispersion relation $ε(k)…
Local entanglement and quantum phase transition in 1D transverse field Ising model
Shi-Quan Su, Jun-Liang Song, Shi-Jian Gu
In this paper, we study the entanglement between two-neighboring sites and the rest of the system in a simple quantum phase transition of 1D transverse field Ising model. We find t…
Universal role of correlation entropy in critical phenomena
Shi-Jian Gu, Chang-Pu Sun, Hai-Qing Lin
In statistical physics, if we successively divide an equilibrium system into two parts, we will face a situation that, within a certain length , the physics of a subsystem is no…
Quantum criticality in a generalized Dicke model
Yong Li, Z. D. Wang, C. P. Sun
We employ a generalized Dicke model to study theoretically the quantum criticality of an extended two-level atomic ensemble interacting with a single-mode quantized light field. Ef…
Entanglement dynamics of qubits in a common environment
Jun-Hong An, Shun-Jin Wang, Hong-Gang Luo
We use the quantum jump approach to study the entanglement dynamics of a quantum register, which is composed of two or three dipole-dipole coupled two-level atoms, interacting with…
Analogue of Cavity QED for Coupling between Spin and Nanomechanical Resonator
Fei Xue, Ling Zhong, Yong Li +1
We describe a cavity QED analogue for the coupling system of a spin and a nanomechanical resonator with a magnetic tip. For the quantized nanomechanical resonator, a spin-boson mod…
Electromagnetic manipulation for anti-Zeno effect in an engineered quantum tunneling process
Lan Zhou, F. M. Hu, Jing Lu +1
We investigate the quantum Zeno and anti-Zeno effects for the irreversible quantum tunneling from a quantum dot to a ring array of quantum dots. By modeling the total system with t…
Fractional revivals of quantum state in tight-binding chain
Bing Chen, Z. Song, C. P. Sun
We investigate the time evolution of Gaussian wave packet (GWP) in the tight-binding chain with uniform nearest neighbor (NN) hopping integral. Analytical analysis and numerical si…
Probing Quantum Phase Transition in Macroscopic Qubit Array via circuit QED architecture
Y. D. Wang, Fei Xue, C. P. Sun
We demonstrate a universal physical mechanism to probe the macroscopic quantum phase transition based on circuit QED architecture. We found that, with certain parameters, the Josep…
Quantum dynamics of magnetically controlled network for Bloch electrons
S. Yang, Z. Song, C. P. Sun
We study quantum dynamics of wave packet motion of Bloch electrons in quantum networks with the tight-binding approach for different types of nearest-neighbor interactions. For var…
Probing tiny motions of nanomechanical resonators: classical or quantum mechanical?
L. F. Wei, Yu-xi Liu, C. P. Sun +1
We propose a spectroscopic approach to probe tiny vibrations of a nanomechanical resonator (NAMR), which may reveal classical or quantum behavior depending on the decoherence-induc…