TY - JOUR
T1 - Experimental demonstration of the quantum Zeno effect in NMR with entanglement-based measurements
AU - Zheng, Wenqiang
AU - Xu, D. Z.
AU - Peng, Xinhua
AU - Zhou, Xianyi
AU - Du, Jiangfeng
AU - Sun, C. P.
PY - 2013/3/19
Y1 - 2013/3/19
N2 - We experimentally demonstrate a dynamic fashion of quantum Zeno effect in nuclear magnetic resonance systems. The frequent measurements are implemented through quantum entanglement between the target qubit(s) and the measuring qubit, which dynamically results from the unitary evolution of duration τm due to dispersive coupling. Experimental results testify to the presence of "the critical measurement time effect," that is, the quantum Zeno effect does not occur when τm takes some critical values, even if the measurements are frequent enough. Moreover, we provide an experimental demonstration of an entanglement preservation mechanism based on such a dynamic quantum Zeno effect.
AB - We experimentally demonstrate a dynamic fashion of quantum Zeno effect in nuclear magnetic resonance systems. The frequent measurements are implemented through quantum entanglement between the target qubit(s) and the measuring qubit, which dynamically results from the unitary evolution of duration τm due to dispersive coupling. Experimental results testify to the presence of "the critical measurement time effect," that is, the quantum Zeno effect does not occur when τm takes some critical values, even if the measurements are frequent enough. Moreover, we provide an experimental demonstration of an entanglement preservation mechanism based on such a dynamic quantum Zeno effect.
UR - http://www.scopus.com/inward/record.url?scp=84875287103&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.87.032112
DO - 10.1103/PhysRevA.87.032112
M3 - Article
AN - SCOPUS:84875287103
SN - 1050-2947
VL - 87
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 3
M1 - 032112
ER -