Showing 2018 · quant-phShow all

15 papers · 2 filters

quant-ph2018★ 13 cited

Quantum simulation of clustered photosynthetic light harvesting in a superconducting quantum circuit

Ming-Jie Tao, Ming Hua, Na-Na Zhang +3

We propose a scheme to simulate the exciton energy transfer (EET) of photosynthetic complexes in a quantum superconducting circuit system. Our system is composed of two pairs of su…

quant-ph2018★ 35 cited

Exact quantum dynamics of XXZ central spin problems

Wen-Bin He, Stefano Chesi, Hai-Qing Lin +1

We obtain analytically close forms of benchmark quantum dynamics of the collapse and revival (CR), reduced density matrix, Von Neumann entropy, and fidelity for the XXZ central spi…

quant-ph2018★ 6 cited

Estimation of parameters in circuit QED by continuous quantum measurement

Cheng Zhang, Kai Zhou, Wei Feng +1

Designing high-precision and efficient schemes is of crucial importance for quantum parameter estimation in practice. The estimation scheme based on continuous quantum measurement…

quant-ph2018

Emergent Quantum Dynamics of Vortex Line under Linear Local Induction Approximation

Guihao Jia, Yu Xu, Xiao Kong +3

Using the linear local induction approximation, we investigated the self-induced motion of a vortex line that corresponds to the motion of a particle in quantum mechanics. Concerni…

quant-ph2018★ 11 cited

Entanglement purification of nonlocal quantum-dot-confined electrons assisted by double-sided optical microcavities

Zi-Chao Liu, Jian-Song Hong, Jia-Jie Guo +5

We present a nondestructive parity-check detector (PCD) scheme for two single-electron quantum dots embedded in double-sided optical microcavities. Using a polarization-entangled p…

quant-ph2018★ 7 cited

Self-error-rejecting quantum state transmission of entangled photons for faithful quantum communication without calibrate reference frames

Peng-Liang Guo, Tao Li, Qing Ai +1

We propose an alignment-free two-party polarization-entanglement transmission scheme for entangled photons by using only linear-optical elements, requiring neither ancillary photon…

quant-ph2018★ 19 cited

Error-heralded generation and self-assisted complete analysis of two-photon hyperentangled Bell states assisted by single-sided quantum-dot-cavity systems

Yan-yan Zheng, Lei-xia Liang, Mei Zhang

Hyperentangled Bell-state analysis (HBSA) is critical for high-capacity quantum communication. Here we design two effective schemes for error-heralded deterministic generation and…

quant-ph2018★ 48 cited

Photon transport mediated by an atomic chain trapped along a photonic crystal waveguide

Guo-Zhu Song, Ewan Munro, Wei Nie +3

We theoretically investigate the transport properties of a weak coherent input field scattered by an ensemble of -type atoms coupled to a one-dimensional photonic crystal wavegu…

quant-ph2018★ 19 cited

Self-error-rejecting photonic qubit transmission in polarization-spatial modes with linear optical elements

Yu-Xiao Jiang, Peng-Liang Guo, Cheng-Yan Gao +4

We present an original self-error-rejecting photonic qubit transmission scheme for both the polarization and spatial states of photon systems transmitted over collective noise chan…

quant-ph2018★ 29 cited

Longitudinal relaxation of a nitrogen-vacancy center in a spin bath by generalized cluster-correlation expansion method

Zhi-Sheng Yang, Yan-Xiang Wang, Ming-Jie Tao +4

We theoretically study the longitudinal relaxation of a nitrogen-vacancy (NV) center surrounded by a 13C nuclear spin bath in diamond. By incorporating electron spin in the cluster…

quant-ph2018★ 13 cited

Entanglement concentration and purification of two-mode squeezed microwave photons in circuit QED

Hao Zhang, Ahmed Alsaedi, Tasawar Hayat +1

We present a theoretical proposal for a physical implementation of entanglement concentration and purification protocols for two-mode squeezed microwave photons in circuit quantum…

quant-ph2018★ 9 cited

Universal single-qubit non-adiabatic holonomic quantum gates in optomechanical system

Shan-Shan Chen, Hao Zhang, Xue-Ke Song +5

The non-adiabatic holonomic quantum computation with the advantages of fast and robustness attracts widespread attention in recent years. Here, we propose the first scheme for real…

quant-ph2018★ 34 cited

Self-error-corrected hyperparallel photonic quantum computation working with both the polarization and the spatial-mode degrees of freedom

Guan-Yu Wang, Tao Li, Qing Ai +1

Usually, the hyperparallel quantum computation can speed up quantum computing, reduce the quantum resource consumed largely, resist to noise, and simplify the storage of quantum in…

quant-ph2018★ 58 cited

Faithful entanglement purification for high-capacity quantum communication with two-photon four-qubit systems

Guan-Yu Wang, Tao Li, Qing Ai +3

As the hyperentanglement of photon systems presents lots of unique opportunities in high-capacity quantum networking, the hyperentanglement purification protocol (hyper-EPP) become…

quant-ph2018★ 119 cited

Quantum simulation of photosynthetic energy transfer

Bi-Xue Wang, Ming-Jie Tao, Qing Ai +7

Near-unity energy transfer efficiency has been widely observed in natural photosynthetic complexes. This phenomenon has attracted broad interest from different fields, such as phys…