---
_id: '1114'
abstract:
- lang: eng
text: Nonequilibrium phase transitions exist in damped-driven open quantum systems
when the continuous tuning of an external parameter leads to a transition between
two robust steady states. In second-order transitions this change is abrupt at
a critical point, whereas in first-order transitions the two phases can coexist
in a critical hysteresis domain. Here, we report the observation of a first-order
dissipative quantum phase transition in a driven circuit quantum electrodynamics
system. It takes place when the photon blockade of the driven cavity-atom system
is broken by increasing the drive power. The observed experimental signature is
a bimodal phase space distribution with varying weights controlled by the drive
strength. Our measurements show an improved stabilization of the classical attractors
up to the millisecond range when the size of the quantum system is increased from
one to three artificial atoms. The formation of such robust pointer states could
be used for new quantum measurement schemes or to investigate multiphoton phases
of finite-size, nonlinear, open quantum systems.
article_number: '011012'
article_processing_charge: Yes
author:
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
- first_name: András
full_name: Dombi, András
last_name: Dombi
- first_name: András
full_name: Vukics, András
last_name: Vukics
- first_name: Andreas
full_name: Wallraff, Andreas
last_name: Wallraff
- first_name: Peter
full_name: Domokos, Peter
last_name: Domokos
citation:
ama: Fink JM, Dombi A, Vukics A, Wallraff A, Domokos P. Observation of the photon
blockade breakdown phase transition. Physical Review X. 2017;7(1). doi:10.1103/PhysRevX.7.011012
apa: Fink, J. M., Dombi, A., Vukics, A., Wallraff, A., & Domokos, P. (2017).
Observation of the photon blockade breakdown phase transition. Physical Review
X. American Physical Society. https://doi.org/10.1103/PhysRevX.7.011012
chicago: Fink, Johannes M, András Dombi, András Vukics, Andreas Wallraff, and Peter
Domokos. “Observation of the Photon Blockade Breakdown Phase Transition.” Physical
Review X. American Physical Society, 2017. https://doi.org/10.1103/PhysRevX.7.011012.
ieee: J. M. Fink, A. Dombi, A. Vukics, A. Wallraff, and P. Domokos, “Observation
of the photon blockade breakdown phase transition,” Physical Review X,
vol. 7, no. 1. American Physical Society, 2017.
ista: Fink JM, Dombi A, Vukics A, Wallraff A, Domokos P. 2017. Observation of the
photon blockade breakdown phase transition. Physical Review X. 7(1), 011012.
mla: Fink, Johannes M., et al. “Observation of the Photon Blockade Breakdown Phase
Transition.” Physical Review X, vol. 7, no. 1, 011012, American Physical
Society, 2017, doi:10.1103/PhysRevX.7.011012.
short: J.M. Fink, A. Dombi, A. Vukics, A. Wallraff, P. Domokos, Physical Review
X 7 (2017).
date_created: 2018-12-11T11:50:13Z
date_published: 2017-01-31T00:00:00Z
date_updated: 2023-09-20T11:33:07Z
day: '31'
ddc:
- '539'
department:
- _id: JoFi
doi: 10.1103/PhysRevX.7.011012
external_id:
isi:
- '000397450500001'
file:
- access_level: open_access
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:12:52Z
date_updated: 2018-12-12T10:12:52Z
file_id: '4972'
file_name: IST-2017-753-v1+1_PhysRevX.7.011012.pdf
file_size: 1172926
relation: main_file
file_date_updated: 2018-12-12T10:12:52Z
has_accepted_license: '1'
intvolume: ' 7'
isi: 1
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: Physical Review X
publication_identifier:
issn:
- '21603308'
publication_status: published
publisher: American Physical Society
publist_id: '6252'
pubrep_id: '753'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Observation of the photon blockade breakdown phase transition
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: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 7
year: '2017'
...