Accelerated Gaussian quantum state transfer between two remote mechanical resonators

The main challenge in deterministic quantum state transfer (QST) between remote mechanical resonators is the local decoherence and the transmission losses in the communication channel. In the path of overcoming this limitation, here we employ a shortcut to adiabatic passage protocol to devise a fast...

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Main Authors: M Rezaei, K Javidan, M Abdi
Format: Article
Language:English
Published: IOP Publishing 2022-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/ac6dfc
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author M Rezaei
K Javidan
M Abdi
author_facet M Rezaei
K Javidan
M Abdi
author_sort M Rezaei
collection DOAJ
description The main challenge in deterministic quantum state transfer (QST) between remote mechanical resonators is the local decoherence and the transmission losses in the communication channel. In the path of overcoming this limitation, here we employ a shortcut to adiabatic passage protocol to devise a fast and reliable evolution path between two remote mechanical modes in separate optomechanical systems (OMSs). A QST between the two nodes is conceived by engineering their coupling to an intermediate fiber optical channel. The coupling pulses are operated such that the dark eigenmode of the system is decoupled from the fiber modes and transitions to the bright modes are compensated for by counterdiabatic drives. We show that one obtains a QST with high fidelity for various Gaussian states. The efficiency is compared to that of adiabatic passage (AP) protocol in the presence of losses and noises. Our results show that while the AP protocol is very sensitive to the decoherence, the shortcut to adiabaticity provides a robust and fast QST even for small values of the coupling strength. The performance of both protocols are also investigated for the case of multimode fiber through numerical and an effective single-model model which is found by the elimination of off-resonant fiber modes. Our findings may pave the way for using OMSs in the realization of continuous-variable Gaussian QST.
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spelling doaj.art-cf091b7ebd254d68abd8636c3e7979df2023-08-09T14:24:43ZengIOP PublishingNew Journal of Physics1367-26302022-01-0124505304810.1088/1367-2630/ac6dfcAccelerated Gaussian quantum state transfer between two remote mechanical resonatorsM Rezaei0K Javidan1https://orcid.org/0000-0002-7596-4280M Abdi2https://orcid.org/0000-0002-9681-5751Department of Physics, Ferdowsi University of Mashhad , Mashhad, PO Box 91775-1436, IranDepartment of Physics, Ferdowsi University of Mashhad , Mashhad, PO Box 91775-1436, IranDepartment of Physics, Isfahan University of Technology , Isfahan 84156-83111, IranThe main challenge in deterministic quantum state transfer (QST) between remote mechanical resonators is the local decoherence and the transmission losses in the communication channel. In the path of overcoming this limitation, here we employ a shortcut to adiabatic passage protocol to devise a fast and reliable evolution path between two remote mechanical modes in separate optomechanical systems (OMSs). A QST between the two nodes is conceived by engineering their coupling to an intermediate fiber optical channel. The coupling pulses are operated such that the dark eigenmode of the system is decoupled from the fiber modes and transitions to the bright modes are compensated for by counterdiabatic drives. We show that one obtains a QST with high fidelity for various Gaussian states. The efficiency is compared to that of adiabatic passage (AP) protocol in the presence of losses and noises. Our results show that while the AP protocol is very sensitive to the decoherence, the shortcut to adiabaticity provides a robust and fast QST even for small values of the coupling strength. The performance of both protocols are also investigated for the case of multimode fiber through numerical and an effective single-model model which is found by the elimination of off-resonant fiber modes. Our findings may pave the way for using OMSs in the realization of continuous-variable Gaussian QST.https://doi.org/10.1088/1367-2630/ac6dfcquantum state transferGaussian statesoptomechanical systems
spellingShingle M Rezaei
K Javidan
M Abdi
Accelerated Gaussian quantum state transfer between two remote mechanical resonators
New Journal of Physics
quantum state transfer
Gaussian states
optomechanical systems
title Accelerated Gaussian quantum state transfer between two remote mechanical resonators
title_full Accelerated Gaussian quantum state transfer between two remote mechanical resonators
title_fullStr Accelerated Gaussian quantum state transfer between two remote mechanical resonators
title_full_unstemmed Accelerated Gaussian quantum state transfer between two remote mechanical resonators
title_short Accelerated Gaussian quantum state transfer between two remote mechanical resonators
title_sort accelerated gaussian quantum state transfer between two remote mechanical resonators
topic quantum state transfer
Gaussian states
optomechanical systems
url https://doi.org/10.1088/1367-2630/ac6dfc
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AT kjavidan acceleratedgaussianquantumstatetransferbetweentworemotemechanicalresonators
AT mabdi acceleratedgaussianquantumstatetransferbetweentworemotemechanicalresonators