Quantum Metrology with Entangled Coherent States 论文
2011Physical Review Letters引用 531
Quantum Information and CryptographyQuantum Mechanics and ApplicationsCold Atom Physics and Bose-Einstein Condensates
详细信息
- 发表期刊/会议
- Physical Review Letters
- 发表日期
- 2011-08-16
- 发表年份
- 2011
关键词
Quantum Information and CryptographyQuantum Mechanics and ApplicationsCold Atom Physics and Bose-Einstein Condensates
摘要
We present an improved phase estimation scheme employing entangled coherent states and demonstrate that these states give the smallest variance in the phase parameter in comparison to NOON, "bat," and "optimal" states under perfect and lossy conditions. As these advantages emerge for very modest particle numbers, the optical version of entangled coherent state metrology is achievable with current technology.