Результаты исследований: Научные публикации в периодических изданиях › статья
Spontaneous coherence in a cold exciton gas. / High, A. A.; Leonard, J. R.; Hammack, A. T.; Fogler, M. M.; Butov, L. V.; Kavokin, A. V.; Campman, K. L.; Gossard, A. C.
в: Nature, Том 483, № 7391, 2012, стр. 584–588.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - Spontaneous coherence in a cold exciton gas
AU - High, A. A.
AU - Leonard, J. R.
AU - Hammack, A. T.
AU - Fogler, M. M.
AU - Butov, L. V.
AU - Kavokin, A. V.
AU - Campman, K. L.
AU - Gossard, A. C.
PY - 2012
Y1 - 2012
N2 - f bosonic particles are cooled down below the temperature of quantum degeneracy, they can spontaneously form a coherent state in which individual matter waves synchronize and combine. Spontaneous coherence of matter waves forms the basis of a number of fundamental phenomena in physics, including superconductivity, superfluidity and Bose–Einstein condensation1, 2. Spontaneous coherence is the key characteristic of condensation in momentum space3. Excitons—bound pairs of electrons and holes—form a model system to explore the quantum physics of cold bosons in solids4, 5. Cold exciton gases can be realized in a system of indirect excitons, which can cool down below the temperature of quantum degeneracy owing to their long lifetimes6. Here we report measurements of spontaneous coherence in a gas of indirect excitons. We found that spontaneous coherence of excitons emerges in the region of the macroscopically ordered exciton state7 and in the region of vortices of linear polarization. The coherence length in these
AB - f bosonic particles are cooled down below the temperature of quantum degeneracy, they can spontaneously form a coherent state in which individual matter waves synchronize and combine. Spontaneous coherence of matter waves forms the basis of a number of fundamental phenomena in physics, including superconductivity, superfluidity and Bose–Einstein condensation1, 2. Spontaneous coherence is the key characteristic of condensation in momentum space3. Excitons—bound pairs of electrons and holes—form a model system to explore the quantum physics of cold bosons in solids4, 5. Cold exciton gases can be realized in a system of indirect excitons, which can cool down below the temperature of quantum degeneracy owing to their long lifetimes6. Here we report measurements of spontaneous coherence in a gas of indirect excitons. We found that spontaneous coherence of excitons emerges in the region of the macroscopically ordered exciton state7 and in the region of vortices of linear polarization. The coherence length in these
U2 - DOI: 10.1038/nature10903
DO - DOI: 10.1038/nature10903
M3 - статья
VL - 483
SP - 584
EP - 588
JO - Nature
JF - Nature
SN - 0028-0836
IS - 7391
ER -
ID: 5392116