Non-Hermitian topology and entanglement in an optomechanical superlattice

The interplay between topology and dissipation can give rise to a wealth of new phenomena and pave the way for novel topological lasers, sensors, and other quantum devices. Along these lines, we propose here an optomechanical setup in which the concomitant presence of a spatially modulated external...

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Main Authors: Wojciech Brzezicki, Timo Hyart, Francesco Massel
Format: Article
Language:English
Published: American Physical Society 2025-01-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.7.013089
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author Wojciech Brzezicki
Timo Hyart
Francesco Massel
author_facet Wojciech Brzezicki
Timo Hyart
Francesco Massel
author_sort Wojciech Brzezicki
collection DOAJ
description The interplay between topology and dissipation can give rise to a wealth of new phenomena and pave the way for novel topological lasers, sensors, and other quantum devices. Along these lines, we propose here an optomechanical setup in which the concomitant presence of a spatially modulated external drive and dissipation gives rise to a topologically nontrivial state for mechanical and optical excitations. We are able to show that the one-dimensional system considered here exhibits topologically protected end states for which mechanical and optical degrees of freedom are entangled. We show such entanglement to be robust with respect to the presence of nonzero-temperature baths and we propose a protocol for experimental observation of the entanglement.
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institution Kabale University
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series Physical Review Research
spelling doaj-art-c4907b813332455783cfdca06e5fe16c2025-01-23T15:03:32ZengAmerican Physical SocietyPhysical Review Research2643-15642025-01-017101308910.1103/PhysRevResearch.7.013089Non-Hermitian topology and entanglement in an optomechanical superlatticeWojciech BrzezickiTimo HyartFrancesco MasselThe interplay between topology and dissipation can give rise to a wealth of new phenomena and pave the way for novel topological lasers, sensors, and other quantum devices. Along these lines, we propose here an optomechanical setup in which the concomitant presence of a spatially modulated external drive and dissipation gives rise to a topologically nontrivial state for mechanical and optical excitations. We are able to show that the one-dimensional system considered here exhibits topologically protected end states for which mechanical and optical degrees of freedom are entangled. We show such entanglement to be robust with respect to the presence of nonzero-temperature baths and we propose a protocol for experimental observation of the entanglement.http://doi.org/10.1103/PhysRevResearch.7.013089
spellingShingle Wojciech Brzezicki
Timo Hyart
Francesco Massel
Non-Hermitian topology and entanglement in an optomechanical superlattice
Physical Review Research
title Non-Hermitian topology and entanglement in an optomechanical superlattice
title_full Non-Hermitian topology and entanglement in an optomechanical superlattice
title_fullStr Non-Hermitian topology and entanglement in an optomechanical superlattice
title_full_unstemmed Non-Hermitian topology and entanglement in an optomechanical superlattice
title_short Non-Hermitian topology and entanglement in an optomechanical superlattice
title_sort non hermitian topology and entanglement in an optomechanical superlattice
url http://doi.org/10.1103/PhysRevResearch.7.013089
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AT timohyart nonhermitiantopologyandentanglementinanoptomechanicalsuperlattice
AT francescomassel nonhermitiantopologyandentanglementinanoptomechanicalsuperlattice