Quantum interferometer with two-mode squeezed vacuum:S^z2 measurement
Quantum interferometric strategy with input two-mode squeezed vacuum [Phys. Rev. Lett. 104 103602] is reexamined for both parity and S^z2 measurements. Unlike the previous scheme, we find that phase sensitivity obtained with the S^z2 measurement is minimized at phase origin, which may be useful to e...
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Published in | 中国物理B:英文版 no. 11; pp. 315 - 318 |
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Format | Journal Article |
Language | English |
Published |
2013
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Abstract | Quantum interferometric strategy with input two-mode squeezed vacuum [Phys. Rev. Lett. 104 103602] is reexamined for both parity and S^z2 measurements. Unlike the previous scheme, we find that phase sensitivity obtained with the S^z2 measurement is minimized at phase origin, which may be useful to estimate a small phase shift at high precision. For the phase deviated from zero, the sensitivity increases more slowly than that of the parity detection. |
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AbstractList | Quantum interferometric strategy with input two-mode squeezed vacuum [Phys. Rev. Lett. 104 103602] is reexamined for both parity and S^z2 measurements. Unlike the previous scheme, we find that phase sensitivity obtained with the S^z2 measurement is minimized at phase origin, which may be useful to estimate a small phase shift at high precision. For the phase deviated from zero, the sensitivity increases more slowly than that of the parity detection. |
Author | 张渊明 李昕伟 金光日 |
AuthorAffiliation | Department of Physics, Beijing Jiaotong University, Beijing 100044, China |
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Notes | Mach-Zehnder interferometer, phase sensitivity Quantum interferometric strategy with input two-mode squeezed vacuum [Phys. Rev. Lett. 104 103602] is reexamined for both parity and S^z2 measurements. Unlike the previous scheme, we find that phase sensitivity obtained with the S^z2 measurement is minimized at phase origin, which may be useful to estimate a small phase shift at high precision. For the phase deviated from zero, the sensitivity increases more slowly than that of the parity detection. 11-5639/O4 Zhang Yuan-Ming, Li Xin-Wei, Jin Guang-Ri(Department of Physics, Beijing Jiaotong University, Beijing 100044, China) |
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Snippet | Quantum interferometric strategy with input two-mode squeezed vacuum [Phys. Rev. Lett. 104 103602] is reexamined for both parity and S^z2 measurements. Unlike... |
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StartPage | 315 |
SubjectTerms | 压缩真空 双模 奇偶检测 干涉仪 校验和 测量 相位灵敏度 量子干涉 |
Title | Quantum interferometer with two-mode squeezed vacuum:S^z2 measurement |
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