Temporal shaping of single photons enabled by entanglement

被引：34

作者：

Averchenko, Valentin ^{[1
]}

Sych, Denis ^{[2
,3
,4
]}

Schunk, Gerhard ^{[1
,5
]}

Vogl, Ulrich ^{[1
,5
]}

Marquardt, Christoph ^{[1
,5
]}

Leuchs, Gerd ^{[1
,5
]}

机构：

[1] Max Planck Inst Sci Light, Staudtstr 2, D-91058 Erlangen, Germany

[2] Russian Acad Sci, Lebedev Phys Inst, 53 Leninskiy Prospekt, Moscow 119991, Russia

[3] Russian Quantum Ctr, 100A Novaya St, Skolkovo 143025, Moscow Region, Russia

[4] Moscow State Pedag Univ, Dept Phys, 1-1 M Pirogovskaya St, Moscow 119992, Russia

[5] Univ Erlangen Nurnberg, Inst Opt Informat & Photon, Staudtstr 7-B2, D-90158 Erlangen, Germany

来源：

PHYSICAL REVIEW A | 2017年 / 96卷 / 04期

基金：

俄罗斯科学基金会;

关键词：

PARAMETRIC DOWN-CONVERSION; TIME; CAVITY; STATE; INTERFERENCE; GENERATION;

D O I：

10.1103/PhysRevA.96.043822

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a method to produce pure single photons with an arbitrary designed temporal shape in a heralded way. As an indispensable resource, the method uses pairs of time-energy entangled photons. One photon of a pair undergoes temporal amplitude-phase modulation according to the desired shape. Subsequent frequency-resolved detection of the modulated photon heralds its entangled counterpart in a pure quantum state. The temporal shape of the heralded photon is indirectly affected by the modulation in the heralding arm. We derive conditions for which the shape of the heralded photon is given by the modulation function. The method can be implemented with various sources of time-energy entangled photons. In particular, using entangled photons from parametric down-conversion the method provides a simple means to generate pure shaped photons with an unprecedented broad range of temporal durations, from tenths of femtoseconds to microseconds. This shaping of single photons will push forward the implementation of scalable multidimensional quantum information protocols, efficient photon-matter coupling, and quantum control at the level of single quanta.

引用

页数：7

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