DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ooi, CHR | ko |
dc.contributor.author | Kim, BG | ko |
dc.contributor.author | Lee, Hai-Woong | ko |
dc.date.accessioned | 2007-09-20T06:48:58Z | - |
dc.date.available | 2007-09-20T06:48:58Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2007-06 | - |
dc.identifier.citation | PHYSICAL REVIEW A, v.75, pp.179 - 189 | - |
dc.identifier.issn | 1050-2947 | - |
dc.identifier.uri | http://hdl.handle.net/10203/1530 | - |
dc.description | ©2007 The American Physical Society URL: http://link.aps.org/abstract/PRA/v75/e063801 doi:10.1103/PhysRevA.75.063801 PACS: 42.50.Fx, 42.50.Ar, 03.67.Mn | en |
dc.description.abstract | Sub- and superradiant dynamics of spontaneously decaying atoms are manifestations of collective many-body systems. We study the internal dynamics and the radiation properties of two atoms in free space. Interesting results are obtained when the atoms are separated by less than half a wavelength of the atomic transition, where the dipole-dipole interaction gives rise to new coherent effects, such as (a) coherence between two intermediate collective states, (b) oscillations in the two-photon correlation G((2)), (c) emission of two photons by one atom, and (d) the loss of directional correlation. We compare the population dynamics during the two-photon emission process with the dynamics of single-photon emission in the cases of a Lambda and a V scheme. We compute the temporal correlation and angular correlation of two successively emitted photons using the G((2)) for different values of atomic separation. We find antibunching when the atomic separation is a quarter wavelength lambda/4. Oscillations in the temporal correlation provide a useful feature for measuring subwavelength atomic separation. Strong directional correlation between two emitted photons is found for atomic separation larger than a wavelength. We also compare the directionality of a photon spontaneously emitted by the two atoms prepared in phased-symmetric and phased-antisymmetric entangled states parallel to +/->(k0)=e(0)(ik)center dot r(1)parallel to a(1),b(2)>+/- e(0)(ik)center dot r(2)parallel to b(1),a(2)> by a laser pulse with wave vector k(0). Photon emission is directionally suppressed along k(0) for the phased-antisymmetric state. The directionality ceases for interatomic distances less than lambda/2. | - |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | AMER PHYSICAL SOC | - |
dc.subject | SINGLE-PHOTON | - |
dc.subject | RADIATION | - |
dc.subject | SYSTEM | - |
dc.subject | INTERFERENCE | - |
dc.title | Coherent effects on two-photon correlation and directional emission of two two-level atoms | - |
dc.type | Article | - |
dc.identifier.wosid | 000247624300175 | - |
dc.identifier.scopusid | 2-s2.0-34347361728 | - |
dc.type.rims | ART | - |
dc.citation.volume | 75 | - |
dc.citation.beginningpage | 179 | - |
dc.citation.endingpage | 189 | - |
dc.citation.publicationname | PHYSICAL REVIEW A | - |
dc.identifier.doi | 10.1103/PhysRevA.75.063801 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Lee, Hai-Woong | - |
dc.contributor.nonIdAuthor | Ooi, CHR | - |
dc.contributor.nonIdAuthor | Kim, BG | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | SINGLE-PHOTON | - |
dc.subject.keywordPlus | RADIATION | - |
dc.subject.keywordPlus | SYSTEM | - |
dc.subject.keywordPlus | INTERFERENCE | - |
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