Bose–Einstein condensation of exciton polaritons

@article{Kasprzak2006BoseEinsteinCO,
  title={Bose–Einstein condensation of exciton polaritons},
  author={Jacek Kasprzak and Maxime Richard and Stefan Kundermann and Augustin Baas and P. Jeambrun and Jonathan Keeling and Francesca M. Marchetti and Marzena H. Szymańska and R{\'e}gis Andr{\'e} and J. L. Staehli and Vincenzo Savona and Peter B. Littlewood and Benoit Deveaud and Le Si Dang},
  journal={Nature},
  year={2006},
  volume={443},
  pages={409-414}
}
Phase transitions to quantum condensed phases—such as Bose–Einstein condensation (BEC), superfluidity, and superconductivity—have long fascinated scientists, as they bring pure quantum effects to a macroscopic scale. BEC has, for example, famously been demonstrated in dilute atom gas of rubidium atoms at temperatures below 200 nanokelvin. Much effort has been devoted to finding a solid-state system in which BEC can take place. Promising candidate systems are semiconductor microcavities, in… Expand

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References

SHOWING 1-10 OF 42 REFERENCES
Towards Bose–Einstein condensation of excitons in potential traps
TLDR
Inspired by experiments on atom condensation, and using specially designed semiconductor nanostructures, the photoluminescence measurements show that the quasi-two-dimensional excitons indeed condense at the bottom of the traps, giving rise to a statistically degenerate Bose gas. Expand
Measurement of the spatial coherence of a trapped Bose gas at the phase transition
TLDR
A direct measurement of the phase coherence properties of a weakly interacting Bose gas of rubidium atoms is reported, which creates a double slit for magnetically trapped atoms using a radio wave field with two frequency components. Expand
Bose–Einstein condensation of the triplet states in the magnetic insulator TlCuCl3
TLDR
An experimental investigation of the excitation spectrum in such a field-induced magnetically ordered state, using inelastic neutron scattering measurements of TlCuCl3 single crystals confirms unambiguously the theoretically predicted gapless Goldstone mode characteristic of the Bose–Einstein condensation of the triplet states. Expand
Polariton dynamics and Bose-Einstein condensation in semiconductor microcavities
We present a theoretical model that allows us to describe the polariton dynamics in a semiconductor microcavity at large densities, for the case of nonresonant excitation. Exciton-polaritonExpand
Observation of Bose-Einstein Condensation in a Dilute Atomic Vapor
TLDR
A Bose-Einstein condensate was produced in a vapor of rubidium-87 atoms that was confined by magnetic fields and evaporatively cooled and exhibited a nonthermal, anisotropic velocity distribution expected of the minimum-energy quantum state of the magnetic trap in contrast to the isotropic, thermal velocity distribution observed in the broad uncondensed fraction. Expand
Long-range transport in excitonic dark states in coupled quantum wells
TLDR
Photoluminescence measurements of InGaAs quantum wells are reported and the observation of an effect by which luminescence from excitons appears hundreds of micrometres away from the laser excitation spot is reported. Expand
Experimental evidence for nonequilibrium Bose condensation of exciton polaritons
We observe dramatic changes in the near-field and far-field emission from a semiconductor microcavity excited by a pulsed and nonresonant optical pump with varying power. Above a threshold pumpingExpand
Effects of Bose-Einstein condensation of exciton polaritons in microcavities on the polarization of emitted light
It is shown theoretically that Bose condensation of spin-degenerated exciton polaritons results in spontaneous buildup of the linear polarization in emission spectra of semiconductor microcavitiesExpand
Bose-Einstein condensation
In 1924 the Indian physicist Satyendra Nath Bose sent Einstein a paper in which he derived the Planck law for black-body radiation by treating the photons as a gas of identical particles. EinsteinExpand
Polariton condensation with localized excitons and propagating photons.
TLDR
The condensation temperature for microcavity polaritons is estimated, allowing for their internal structure, and the excitation spectrum is calculated, which is related to observable quantities such as the luminescence and absorption spectra. Expand
...
1
2
3
4
5
...