On the general problem of quantum phase estimation

被引:58
作者
D'Ariano, GM
Macchiavello, C
Sacchi, ME
机构
[1] Univ Pavia, Theoret Quantum Opt Grp, I-27100 Pavia, Italy
[2] INFM, Unita Pavia, I-27100 Pavia, Italy
关键词
D O I
10.1016/S0375-9601(98)00702-6
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The problem of estimating a generic phase-shift experienced by a quantum state is addressed for a generally degenerate phase-shift operator. The optimal positive operator-valued measure is derived along with the optimal input state. Two relevant examples are analyzed: (i) a multi-mode phase-shift operator for multi-path interferometry; (ii) the two-mode heterodyne phase detection. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:103 / 108
页数:6
相关论文
共 16 条
[1]   UNITARY EQUIVALENCE BETWEEN IDEAL AND FEASIBLE PHASES [J].
BAN, M .
PHYSICAL REVIEW A, 1994, 50 (03) :2785-2787
[2]   PHASE OPERATOR-FORMALISM FOR A 2-MODE PHOTON SYSTEM [J].
BAN, M .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1992, 9 (07) :1189-1195
[3]   REALISTIC QUANTUM STATES OF LIGHT WITH MINIMUM PHASE UNCERTAINTY [J].
BANDILLA, A ;
PAUL, H ;
RITZE, HH .
QUANTUM OPTICS, 1991, 3 (05) :267-282
[4]   PHASE AND ANGLE VARIABLES IN QUANTUM MECHANICS [J].
CARRUTHERS, P ;
NIETO, MM .
REVIEWS OF MODERN PHYSICS, 1968, 40 (02) :411-+
[5]   2-MODE HETERODYNE PHASE DETECTION [J].
DARIANO, GM ;
SACCHI, MF .
PHYSICAL REVIEW A, 1995, 52 (06) :R4309-R4312
[6]   Arbitrary precision in multipath interferometry [J].
DAriano, GM ;
Paris, MGA .
PHYSICAL REVIEW A, 1997, 55 (03) :2267-2271
[7]  
Helstrom C., 1976, QUANTUM DETECTION ES
[8]  
HOLEVO AS, 1982, PROBABILISTIC STAT A
[9]   ESTIMATION OF COUNTED QUANTUM PHASE [J].
HRADIL, Z .
PHYSICAL REVIEW A, 1995, 51 (03) :1870-1873