On-demand superradiant conversion of atomic spin gratings into single photons with high efficiency

被引：83

作者：

Black, AT ^{[1
]}

Thompson, JK

Vuletic, V

机构：

[1] MIT, Dept Phys, Harvard Ctr Ultracold Atoms, Cambridge, MA 02139 USA

[2] MIT, Elect Res Lab, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.95.133601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We create quantized spin gratings by single-photon detection and convert them on demand into photons with retrieval efficiencies exceeding 40% (80%) for single ( a few) quanta. We show that the collective conversion process, proceeding via superradiant emission into a moderate-finesse optical resonator, requires phase matching. The storage time of 3 mu s in the cold-atom sample, as well as the peak retrieval efficiency, are likely limited by Doppler decoherence of the entangled state.

引用

页数：4

共 20 条

[1]

[Anonymous], QUANTUM ELECT

[2]

BALIC V, IN PRESS PHYS REV LE

[3] TELEPORTING AN UNKNOWN QUANTUM STATE VIA DUAL CLASSICAL AND EINSTEIN-PODOLSKY-ROSEN CHANNELS [J].

BENNETT, CH ;

BRASSARD, G ;

CREPEAU, C ;

JOZSA, R ;

PERES, A ;

WOOTTERS, WK .

PHYSICAL REVIEW LETTERS, 1993, 70 (13) :1895-1899

[4] Single-photon generation from stored excitation in an atomic ensemble [J].

Chou, CW ;

Polyakov, SV ;

Kuzmich, A ;

Kimble, HJ .

PHYSICAL REVIEW LETTERS, 2004, 92 (21) :213601-1

[5] LONG ATOMIC COHERENCE TIMES IN AN OPTICAL DIPOLE TRAP [J].

DAVIDSON, N ;

LEE, HJ ;

ADAMS, CS ;

KASEVICH, M ;

CHU, S .

PHYSICAL REVIEW LETTERS, 1995, 74 (08) :1311-1314

[6] COHERENCE IN SPONTANEOUS RADIATION PROCESSES [J].

DICKE, RH .

PHYSICAL REVIEW, 1954, 93 (01) :99-110

[7] THE EFFECT OF COLLISIONS UPON THE DOPPLER WIDTH OF SPECTRAL LINES [J].

DICKE, RH .

PHYSICAL REVIEW, 1953, 89 (02) :472-473

[8] Long-distance quantum communication with atomic ensembles and linear optics [J].

Duan, LM ;

Lukin, MD ;

Cirac, JI ;

Zoller, P .

NATURE, 2001, 414 (6862) :413-418

[9] Shaping quantum pulses of light via coherent atomic memory -: art. no. 233602 [J].

Eisaman, MD ;

Childress, L ;

André, A ;

Massou, F ;

Zibrov, AS ;

Lukin, MD .

PHYSICAL REVIEW LETTERS, 2004, 93 (23) :233602-1

[10] Quantum memory for photons: Dark-state polaritons [J].

Fleischhauer, M ;

Lukin, MD .

PHYSICAL REVIEW A, 2002, 65 (02) :1-12

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