Fermi-edge superfluorescence from a quantum-degenerate electron-hole gas
dc.citation.journalTitle | Scientific Reports | en_US |
dc.citation.volumeNumber | 3 | en_US |
dc.contributor.author | Kim, Ji-Hee | en_US |
dc.contributor.author | Noe, G. Timothy II | en_US |
dc.contributor.author | McGill, Stephen A. | en_US |
dc.contributor.author | Wang, Yongrui | en_US |
dc.contributor.author | Wojcik, Aleksander K. | en_US |
dc.contributor.author | Belyanin, Alexey A. | en_US |
dc.contributor.author | Kono, Junichiro | en_US |
dc.date.accessioned | 2013-12-19T22:11:05Z | en_US |
dc.date.available | 2013-12-19T22:11:05Z | en_US |
dc.date.issued | 2013 | en_US |
dc.description.abstract | Nonequilibrium can be a source of order. This rather counterintuitive statement has been proven to be true through a variety of fluctuation-driven, self-organization behaviors exhibited by out-of-equilibrium, many-body systems in nature (physical, chemical, and biological), resulting in the spontaneous appearance of macroscopic coherence. Here, we report on the observation of spontaneous bursts of coherent radiation from a quantum-degenerate gas of nonequilibrium electron-hole pairs in semiconductor quantum wells. Unlike typical spontaneous emission from semiconductors, which occurs at the band edge, the observed emission occurs at the quasi-Fermi edge of the carrier distribution. As the carriers are consumed by recombination, the quasi-Fermi energy goes down toward the band edge, and we observe a continuously red-shifting streak. We interpret this emission as cooperative spontaneous recombination of electron-hole pairs, or superfluorescence (SF), which is enhanced by Coulomb interactions near the Fermi edge. This novel many-body enhancement allows the magnitude of the spontaneously developed macroscopic polarization to exceed the maximum value for ordinary SF, making electron-hole SF even more ムムsuperメメ than atomic SF. | en_US |
dc.identifier.citation | Kim, Ji-Hee, Noe, G. Timothy II, McGill, Stephen A., et al.. "Fermi-edge superfluorescence from a quantum-degenerate electron-hole gas." <i>Scientific Reports,</i> 3, (2013) Nature Publishing Group: http://dx.doi.org/10.1038/srep03283. | en_US |
dc.identifier.doi | http://dx.doi.org/10.1038/srep03283 | en_US |
dc.identifier.uri | https://hdl.handle.net/1911/75255 | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Nature Publishing Group | en_US |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
dc.title | Fermi-edge superfluorescence from a quantum-degenerate electron-hole gas | en_US |
dc.type | Journal article | en_US |
dc.type.dcmi | Text | en_US |
dc.type.publication | publisher version | en_US |