文献类型：期刊文献

英文题名：Protecting Qubit-Qubit Entanglement by Quantum Screening

作者：Shi, W. Q.[1];Huang, J.[1]

机构：[1]Guangdong Ocean Univ, Phys & Photoelect Sci Dept, Zhanjiang 524088, Peoples R China

年份：2017

卷号：56

期号：5

起止页码：1449

外文期刊名：INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS

收录：SCI-EXPANDED(收录号：WOS:000405091500006)、、Scopus(收录号：2-s2.0-85009761256)、WOS

基金：Supported By The Projection Of Enhancing School With Innovation Of Guangdong Ocean University (Grants No. Gdou2014050231) And The Natural Science Foundation Of Guangdong Province(Grants No. 2015A030310354).

语种：英文

外文关键词：Entanglement; Screening; Quantum Zeno effect

外文摘要：We study the entanglement protection between two identical qubits interacting with independent zero-temperature reservoir beyond the Born-Markoivan approximation. The principle is based on an analog of a zero-ground quantum screening method in an electronic circuit, it employs an auxiliary casing system to erase the excited state to the ground state frequently to inhibit the decoherence. We find that the auxiliary casing system plays a crucial role and the number of screening events is proportional to the entanglement protection, the physical mechanism is also given in the context.