Bose–Einstein condensation and indirect excitons: a review

M Combescot, R Combescot… - Reports on Progress in …, 2017 - iopscience.iop.org
We review recent progress on Bose–Einstein condensation (BEC) of semiconductor
excitons. The first part deals with theory, the second part with experiments. This Review is …

Excitonic devices

LV Butov - Superlattices and Microstructures, 2017 - Elsevier
Indirect excitons can be controlled by voltage, can travel over large distances before
recombination, and can cool down close to the temperature of semiconductor crystal lattice …

Excitonic sensor of electric field in quantum-well heterostructures

MA Chukeev, S Zheng, ES Khramtsov, IV Ignatiev… - Physical Review B, 2024 - APS
We present an experimental and theoretical study of the lowest exciton states in a 30-nm
single GaAs quantum-well heterostructure in different electric fields. We found that the …

Voltage-controlled long-range propagation of indirect excitons in a van der Waals heterostructure

LH Fowler-Gerace, DJ Choksy, LV Butov - Physical Review B, 2021 - APS
Indirect excitons (IXs), also known as interlayer excitons, can form the medium for excitonic
devices whose operation is based on controlled propagation of excitons. A proof of principle …

Attractive and repulsive dipolar interaction in bilayers of indirect excitons

DJ Choksy, C Xu, MM Fogler, LV Butov, J Norman… - Physical Review B, 2021 - APS
We explore attractive dipolar interaction in indirect excitons (IXs). For one layer of IXs in a
single pair of coupled quantum wells (CQWs), the out-of-plane IX electric dipoles lead to …

Gas–crystal phase transition in a 2D dipolar exciton system

RA Suris - Journal of Experimental and Theoretical Physics, 2016 - Springer
A system of dipolar excitons at temperatures exceeding the expected Bose–Einstein
condensation temperature is considered. It is shown that a first-order phase transition with …

Theory of condensation of indirect excitons in a trap

SV Lobanov, NA Gippius, LV Butov - Physical Review B, 2016 - APS
We present theoretical studies of condensation of indirect excitons in a trap. Our model
quantifies the effect of screening of the trap potential by indirect excitons on exciton …

Roton-maxon spectrum and instability for weakly interacting dipolar excitons in a semiconductor layer

AK Fedorov, IL Kurbakov, YE Lozovik - Physical Review B, 2014 - APS
The formation of the roton-maxon excitation spectrum and the roton instability effect for a
weakly correlated Bose gas of dipolar excitons in a semiconductor layer are predicted. The …

Optically programmable excitonic traps

M Alloing, A Lemaître, E Galopin, F Dubin - Scientific reports, 2013 - nature.com
With atomic systems, optically programmed trap** potentials have led to remarkable
progress in quantum optics and quantum information science. Programmable trap** …

Spatially resolved and time-resolved imaging of transport of indirect excitons in high magnetic fields

CJ Dorow, MW Hasling, EV Calman, LV Butov, J Wilkes… - Physical Review B, 2017 - APS
We present the direct measurements of magnetoexciton transport. Excitons give the
opportunity to realize the high magnetic-field regime for composite bosons with magnetic …