---
_id: '6786'
abstract:
- lang: eng
text: Dipolar coupling plays a fundamental role in the interaction between electrically
or magnetically polarized species such as magnetic atoms and dipolar molecules
in a gas or dipolar excitons in the solid state. Unlike Coulomb or contactlike
interactions found in many atomic, molecular, and condensed-matter systems, this
interaction is long-ranged and highly anisotropic, as it changes from repulsive
to attractive depending on the relative positions and orientation of the dipoles.
Because of this unique property, many exotic, symmetry-breaking collective states
have been recently predicted for cold dipolar gases, but only a few have been
experimentally detected and only in dilute atomic dipolar Bose-Einstein condensates.
Here, we report on the first observation of attractive dipolar coupling between
excitonic dipoles using a new design of stacked semiconductor bilayers. We show
that the presence of a dipolar exciton fluid in one bilayer modifies the spatial
distribution and increases the binding energy of excitonic dipoles in a vertically
remote layer. The binding energy changes are explained using a many-body polaron
model describing the deformation of the exciton cloud due to its interaction with
a remote dipolar exciton. The surprising nonmonotonic dependence on the cloud
density indicates the important role of dipolar correlations, which is unique
to dense, strongly interacting dipolar solid-state systems. Our concept provides
a route for the realization of dipolar lattices with strong anisotropic interactions
in semiconductor systems, which open the way for the observation of theoretically
predicted new and exotic collective phases, as well as for engineering and sensing
their collective excitations.
article_number: '021026'
article_processing_charge: No
article_type: original
author:
- first_name: Colin
full_name: Hubert, Colin
last_name: Hubert
- first_name: Yifat
full_name: Baruchi, Yifat
last_name: Baruchi
- first_name: Yotam
full_name: Mazuz-Harpaz, Yotam
last_name: Mazuz-Harpaz
- first_name: Kobi
full_name: Cohen, Kobi
last_name: Cohen
- first_name: Klaus
full_name: Biermann, Klaus
last_name: Biermann
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Ken
full_name: West, Ken
last_name: West
- first_name: Loren
full_name: Pfeiffer, Loren
last_name: Pfeiffer
- first_name: Ronen
full_name: Rapaport, Ronen
last_name: Rapaport
- first_name: Paulo
full_name: Santos, Paulo
last_name: Santos
citation:
ama: Hubert C, Baruchi Y, Mazuz-Harpaz Y, et al. Attractive dipolar coupling between
stacked exciton fluids. Physical Review X. 2019;9(2). doi:10.1103/PhysRevX.9.021026
apa: Hubert, C., Baruchi, Y., Mazuz-Harpaz, Y., Cohen, K., Biermann, K., Lemeshko,
M., … Santos, P. (2019). Attractive dipolar coupling between stacked exciton fluids.
Physical Review X. American Physical Society. https://doi.org/10.1103/PhysRevX.9.021026
chicago: Hubert, Colin, Yifat Baruchi, Yotam Mazuz-Harpaz, Kobi Cohen, Klaus Biermann,
Mikhail Lemeshko, Ken West, Loren Pfeiffer, Ronen Rapaport, and Paulo Santos.
“Attractive Dipolar Coupling between Stacked Exciton Fluids.” Physical Review
X. American Physical Society, 2019. https://doi.org/10.1103/PhysRevX.9.021026.
ieee: C. Hubert et al., “Attractive dipolar coupling between stacked exciton
fluids,” Physical Review X, vol. 9, no. 2. American Physical Society, 2019.
ista: Hubert C, Baruchi Y, Mazuz-Harpaz Y, Cohen K, Biermann K, Lemeshko M, West
K, Pfeiffer L, Rapaport R, Santos P. 2019. Attractive dipolar coupling between
stacked exciton fluids. Physical Review X. 9(2), 021026.
mla: Hubert, Colin, et al. “Attractive Dipolar Coupling between Stacked Exciton
Fluids.” Physical Review X, vol. 9, no. 2, 021026, American Physical Society,
2019, doi:10.1103/PhysRevX.9.021026.
short: C. Hubert, Y. Baruchi, Y. Mazuz-Harpaz, K. Cohen, K. Biermann, M. Lemeshko,
K. West, L. Pfeiffer, R. Rapaport, P. Santos, Physical Review X 9 (2019).
date_created: 2019-08-11T21:59:20Z
date_published: 2019-05-08T00:00:00Z
date_updated: 2024-02-28T13:12:48Z
day: '08'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1103/PhysRevX.9.021026
external_id:
arxiv:
- '1807.11238'
isi:
- '000467402900001'
file:
- access_level: open_access
checksum: 065ff82ee4a1d2c3773ce4b76ff4213c
content_type: application/pdf
creator: dernst
date_created: 2019-08-12T12:14:18Z
date_updated: 2020-07-14T12:47:40Z
file_id: '6802'
file_name: 2019_PhysReviewX_Hubert.pdf
file_size: 1193550
relation: main_file
file_date_updated: 2020-07-14T12:47:40Z
has_accepted_license: '1'
intvolume: ' 9'
isi: 1
issue: '2'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
project:
- _id: 26031614-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P29902
name: Quantum rotations in the presence of a many-body environment
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Attractive dipolar coupling between stacked exciton fluids
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 9
year: '2019'
...