We treat two identical and mutually independent two-level atoms that are coupled to a quantum field as an open quantum system.The master equation that governs their evolution is derived by tracing over the degree of f...We treat two identical and mutually independent two-level atoms that are coupled to a quantum field as an open quantum system.The master equation that governs their evolution is derived by tracing over the degree of freedom of the field.With this,we compare the entanglement dynamics of the two atoms moving with different trajectories inκ-deformed and Minkowski spacetimes.Notably,when the environment-induced interatomic interaction does not exist,the entanglement dynamics of two static atoms inκ-deformed spacetime are reduced to that in Minkowski spacetime in the case that the spacetime deformation parameterκis sufficiently large as theoretically predicted.However,if the atoms undergo relativistic motion,regardless of whether inertial or non-inertial,their entanglement dynamics inκ-deformed spacetime behave differently from that in Minkowski spacetime even whenκis large.We investigate various types of entanglement behavior,such as decay and generation,and discuss how different relativistic motions,such as uniform motion in a straight line and circular motion,amplify the differences in the entanglement dynamics between theκ-deformed and Minkowski spacetime cases.In addition,when the environment-induced interatomic interaction is considered,we find that it may also enhance the differences in the entanglement dynamics between these two spacetimes.Thus,in principle,one can tell whether she/he is inκ-deformed or Minkowski spacetime by checking the entanglement behavior between two atoms in certain circumstances.展开更多
Data quality identification is an important task in power big data.Abnormal data exist and hamper the effective utilization of power big data.Moreover,the lack of labeled data makes the detection of abnormal data more...Data quality identification is an important task in power big data.Abnormal data exist and hamper the effective utilization of power big data.Moreover,the lack of labeled data makes the detection of abnormal data more challenging.Then,a data quality identification model for power big data is proposed.It can detect abnormal data from massive power big data.In this model,power data are grouped and then mapped into different feature spaces based on data augmentation technology.Tri-training is applied to detect abnormal data from different power data from different feature spaces.Experiments and simulations are performed to demonstrate the effectiveness of the proposed model.展开更多
基金supported by the Key Program of the National Natural Science Foundation of China(NSFC)(Grant No.12035005)supported by NSFC(Grant No.12065016)+2 种基金supported by NSFC(Grant No.11905218)the Discipline-Team of Liupanshui Normal University of China(Grant No.LPSSY2023XKTD11)the Scientific Research Start-Up Funds of Hangzhou Normal University(Grant No.4245C50224204016)。
文摘We treat two identical and mutually independent two-level atoms that are coupled to a quantum field as an open quantum system.The master equation that governs their evolution is derived by tracing over the degree of freedom of the field.With this,we compare the entanglement dynamics of the two atoms moving with different trajectories inκ-deformed and Minkowski spacetimes.Notably,when the environment-induced interatomic interaction does not exist,the entanglement dynamics of two static atoms inκ-deformed spacetime are reduced to that in Minkowski spacetime in the case that the spacetime deformation parameterκis sufficiently large as theoretically predicted.However,if the atoms undergo relativistic motion,regardless of whether inertial or non-inertial,their entanglement dynamics inκ-deformed spacetime behave differently from that in Minkowski spacetime even whenκis large.We investigate various types of entanglement behavior,such as decay and generation,and discuss how different relativistic motions,such as uniform motion in a straight line and circular motion,amplify the differences in the entanglement dynamics between theκ-deformed and Minkowski spacetime cases.In addition,when the environment-induced interatomic interaction is considered,we find that it may also enhance the differences in the entanglement dynamics between these two spacetimes.Thus,in principle,one can tell whether she/he is inκ-deformed or Minkowski spacetime by checking the entanglement behavior between two atoms in certain circumstances.
基金Supported by the Science and Technology Project of State Grid Shandong Electric Power Company:“Research on the Key Technology of Heterogeneous Graph Anomaly Pattern Recognition Governance Based on Attention Mechanism” (Grant No.2020A-135).
文摘Data quality identification is an important task in power big data.Abnormal data exist and hamper the effective utilization of power big data.Moreover,the lack of labeled data makes the detection of abnormal data more challenging.Then,a data quality identification model for power big data is proposed.It can detect abnormal data from massive power big data.In this model,power data are grouped and then mapped into different feature spaces based on data augmentation technology.Tri-training is applied to detect abnormal data from different power data from different feature spaces.Experiments and simulations are performed to demonstrate the effectiveness of the proposed model.
