Quantum-enhanced measurements: Beating the standard quantum limit

被引：2363

作者：

Giovannetti, V

Lloyd, S

Maccone, L

机构：

[1] MIT, Elect Res Lab, Cambridge, MA 02139 USA

[2] Ist Nazl Fis Mat, Natl Enterprise Nanosci & Nanotechnol, I-56126 Pisa, Italy

[3] Scuola Normale Super Pisa, I-56126 Pisa, Italy

[4] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[5] Univ Pavia, Dipartimento Fis A Volta, Quantum Informat Theory Grp, I-27100 Pavia, Italy

来源：

SCIENCE | 2004年 / 306卷 / 5700期

关键词：

D O I：

10.1126/science.1104149

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Quantum mechanics, through the Heisenberg uncertainty principle, imposes limits on the precision of measurement. Conventional measurement techniques typically fail to reach these limits. Conventional bounds to the precision of measurements such as the shot noise limit or the standard quantum limit are not as fundamental as the Heisenberg limits and can be beaten using quantum strategies that employ "quantum tricks" such as squeezing and entanglement.

引用

页码：1330 / 1336

页数：7

共 82 条

[1]

[Anonymous], 1962, GRAVITATION INTRO CU

[2]

[Anonymous], 1983, Quantum optics, Experimental gravitation, and Measurement Theory

[3] Aligning reference frames with quantum states -: art. no. 257903 [J].