Yune, Jiwon Hong, Kang-Hee Lim, Hyang-Tag Lee, Jong-Chan Kwon, Osung Han, Sang-Wook Kim, Yong-Su Moon, Sung Kim, Yoon-Ho 2024-01-20T06:01:37Z 2024-01-20T06:01:37Z 2021-09-05 2015-10-05 1094-4087 https://pubs.kist.re.kr/handle/201004/124900 Entanglement is known to be an essential resource for many quantum information processes. However, it is now known that some quantum features may be acheived with quantum discord, a generalized measure of quantum correlation. In this paper, we study how quantum discord, or more specifically, the measures of entropic discord and geometric discord are affected by the influence of amplitude damping decoherence. We also show that a protocol deploying weak measurement and quantum measurement reversal can effectively protect quantum discord from amplitude damping decoherence, enabling to distribute quantum correlation between two remote parties in a noisy environment. (C) 2015 Optical Society of America English OPTICAL SOC AMER EXPERIMENTAL ENTANGLEMENT DISTILLATION MEASUREMENT REVERSAL FREE SUBSPACES PURIFICATION SUPPRESSION RESOURCE STATES QUBIT Quantum discord protection from amplitude damping decoherence Article 10.1364/OE.23.026012 1 OPTICS EXPRESS, v.23, no.20, pp.26012 - 26022 OPTICS EXPRESS 23 20 26012 26022 scie scopus 000365077900058 2-s2.0-84943800813 Optics Optics Article EXPERIMENTAL ENTANGLEMENT DISTILLATION MEASUREMENT REVERSAL FREE SUBSPACES PURIFICATION SUPPRESSION RESOURCE STATES QUBIT Quantum correlation Quantum discord Decoherence Weak measurement