TY - JOUR
T1 - Purification of quantum state through Zeno-like measurements
AU - Yuasa, Kazuya
AU - Nakazato, Hiromichi
AU - Takazawa, Tomoko
PY - 2003
Y1 - 2003
N2 - We present a novel procedure to purify quantum states, i.e., purification through Zeno-like measurements. By simply repeating one and the same measurement on a quantum system, one can purify another system in interaction with the former. The conditions for the (efficient) purification are specified on a rather general setting, and the framework of the method possesses wide applicability. It is explicitly demonstrated on a specific setup that the purification becomes very efficient by tuning relevant parameters.
AB - We present a novel procedure to purify quantum states, i.e., purification through Zeno-like measurements. By simply repeating one and the same measurement on a quantum system, one can purify another system in interaction with the former. The conditions for the (efficient) purification are specified on a rather general setting, and the framework of the method possesses wide applicability. It is explicitly demonstrated on a specific setup that the purification becomes very efficient by tuning relevant parameters.
KW - Purification of quantum states
KW - Quantum Zeno effect
KW - Repeated measurement
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U2 - 10.1143/JPSJS.72SC.34
DO - 10.1143/JPSJS.72SC.34
M3 - Article
AN - SCOPUS:4444320325
SN - 0031-9015
VL - 72
SP - 34
EP - 37
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - SUPPL.C
ER -