Generation of picosecond pulsed coherent state superpositions

被引：15

作者：

Dong, Ruifang ^{[1
,2
]}

Tipsmark, Anders ^{[1
]}

Laghaout, Amine ^{[1
]}

Krivitsky, Leonid A. ^{[1
,3
]}

Jezek, Miroslav ^{[1
,4
]}

Andersen, Ulrik Lund ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark

[2] Chinese Acad Sci, Quantum Frequency Stand Div, NTSC, Lintong 710600, Peoples R China

[3] ASTAR, Data Storage Inst, Singapore 117608, Singapore

[4] Palacky Univ, Dept Opt, Olomouc 77146, Czech Republic

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2014年 / 31卷 / 05期

关键词：

SQUEEZED STATES; QUANTUM; DISTILLATION; DETECTOR; LIMITS; NOISE;

D O I：

10.1364/JOSAB.31.001192

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the generation of approximated coherent state superpositions-referred to as Schrodinger cat states-by the process of subtracting single photons from picosecond pulsed squeezed states of light. The squeezed vacuum states are produced by spontaneous parametric down-conversion (SPDC) in a periodically poled KTiOPO4 crystal while the single photons are probabilistically subtracted using a beamsplitter and a single photon detector. The resulting states are fully characterized with time-resolved homodyne quantum state tomography. Varying the pump power of the SPDC, we generated different states which exhibit non-Gaussian behavior. (C) 2014 Optical Society of America

引用

页码：1192 / 1201

页数：10

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