Quantum state reconstruction of the single-photon Fock state

被引：519

作者：

Lvovsky, AI ^{[1
]}

Hansen, H ^{[1
]}

Aichele, T ^{[1
]}

Benson, O ^{[1
]}

Mlynek, J ^{[1
]}

Schiller, S ^{[1
]}

机构：

[1] Univ Constance, Fachbereich Phys, D-78457 Constance, Germany

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.87.050402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have reconstructed the quantum state of optical pulses containing single photons using the method of phase-randomized pulsed optical homodyne tomography. The single-photon Fock state \1) was prepared using conditional measurements on photon pairs born in the process of parametric down-conversion. A probability distribution of the phase-averaged electric field amplitudes with a strongly non-Gaussian shape is obtained with the total detection efficiency of (55 +/- 1)%. The angle-averaged Wigner function reconstructed from this distribution shows a strong dip reaching classically impossible negative values around the origin of the phase space.

引用

页码：50402 / 1

页数：4

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