[en] We report a way of manipulating the spontaneous emission process leading to a spatial modulation of spontaneous decay. The effect is observed in the case of coherently driven atoms separated by less than a transition wavelength. It is quantified by Glauber's photon-photon second-order correlation function. We show that the photon arrival time, usually regarded as an entirely random process, depends not only on where a photon is detected but also on where a former photon had been recorded previously. Our results shed light on the unexpected consequences of state reduction and entanglement for the fundamental process of spontaneous emission.
Disciplines :
Physics
Author, co-author :
von Zanthier, J.
Bastin, Thierry ; Université de Liège - ULiège > Département de physique > Physique des atomes froids
Agarwal, G. S.
Language :
English
Title :
Measurement-induced spatial modulation of spontaneous decay and photon arrival times
Publication date :
2006
Journal title :
Physical Review. A, Atomic, molecular, and optical physics
ISSN :
1050-2947
eISSN :
1094-1622
Publisher :
American Physical Society, College Park, United States - Maryland
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