Excitation transfer in disordered spin chains with long-range exchange interactions

Nikolaos E. Palaiodimopoulos; Maximilian Kiefer-Emmanouilidis; Gershon Kurizki; David Petrosyan

doi:10.21468/SciPostPhysCore.6.1.017

Excitation transfer in disordered spin chains with long-range exchange interactions

Nikolaos E. Palaiodimopoulos^*, Maximilian Kiefer-Emmanouilidis, Gershon Kurizki, David Petrosyan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We examine spin excitation or polarization transfer via spin chains with long-range exchange interactions in the presence of diagonal and off-diagonal disorder. To this end, we determine the mean localization length of the single-excitation eigenstates of the chain for various strengths of the disorder. We then identify the energy eigenstates of the system with large localization length and sufficient support at the chain boundaries that are suitable to transfer an excitation between the sender and receiver spins connected to the opposite ends of the chain. We quantify the performance of two transfer schemes involving weak static couplings of the sender and receiver spins to the chain, and time-dependent couplings realizing stimulated adiabatic passage of the excitation via the intermediate eigenstates of the chain which exhibits improved performance.

Original language	English
Article number	017
Journal	SciPost Physics Core
Volume	6
Issue number	1
DOIs	https://doi.org/10.21468/SciPostPhysCore.6.1.017
Publication status	Published - 2023

Bibliographical note

Funding Information:
This work was supported by the EU QuantERA Project PACE-IN (GSRT Grant No. T11EPA4-00015 for N. E. P. and D. P.). M.K-E. acknowledges financial support from Deutsche Forschungs-gemeinschaft (DFG) via SFB TR 185, Project No.277625399. G. K. acknowledges also the support of PATHOS (FET Open) and DFG (FOR 7274).

Publisher Copyright:
Copyright N. E. Palaiodimopoulos et al. This work is licensed under the Creative Commons Attribution 4.0 International License. Published by the SciPost Foundation.

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Nuclear and High Energy Physics
Atomic and Molecular Physics, and Optics
Statistical and Nonlinear Physics

Access to Document

10.21468/SciPostPhysCore.6.1.017Licence: CC BY

Cite this

@article{4330248066fb42ed82a63c4e87cfed2a,

title = "Excitation transfer in disordered spin chains with long-range exchange interactions",

abstract = "We examine spin excitation or polarization transfer via spin chains with long-range exchange interactions in the presence of diagonal and off-diagonal disorder. To this end, we determine the mean localization length of the single-excitation eigenstates of the chain for various strengths of the disorder. We then identify the energy eigenstates of the system with large localization length and sufficient support at the chain boundaries that are suitable to transfer an excitation between the sender and receiver spins connected to the opposite ends of the chain. We quantify the performance of two transfer schemes involving weak static couplings of the sender and receiver spins to the chain, and time-dependent couplings realizing stimulated adiabatic passage of the excitation via the intermediate eigenstates of the chain which exhibits improved performance.",

author = "Palaiodimopoulos, {Nikolaos E.} and Maximilian Kiefer-Emmanouilidis and Gershon Kurizki and David Petrosyan",

note = "Funding Information: This work was supported by the EU QuantERA Project PACE-IN (GSRT Grant No. T11EPA4-00015 for N. E. P. and D. P.). M.K-E. acknowledges financial support from Deutsche Forschungs-gemeinschaft (DFG) via SFB TR 185, Project No.277625399. G. K. acknowledges also the support of PATHOS (FET Open) and DFG (FOR 7274). Publisher Copyright: Copyright N. E. Palaiodimopoulos et al. This work is licensed under the Creative Commons Attribution 4.0 International License. Published by the SciPost Foundation.",

year = "2023",

doi = "10.21468/SciPostPhysCore.6.1.017",

language = "English",

volume = "6",

journal = "SciPost Physics Core",

issn = "2666-9366",

publisher = "Institute of Economic Research, Nicolaus Copernicus University",

number = "1",

}

TY - JOUR

T1 - Excitation transfer in disordered spin chains with long-range exchange interactions

AU - Palaiodimopoulos, Nikolaos E.

AU - Kiefer-Emmanouilidis, Maximilian

AU - Kurizki, Gershon

AU - Petrosyan, David

N1 - Funding Information: This work was supported by the EU QuantERA Project PACE-IN (GSRT Grant No. T11EPA4-00015 for N. E. P. and D. P.). M.K-E. acknowledges financial support from Deutsche Forschungs-gemeinschaft (DFG) via SFB TR 185, Project No.277625399. G. K. acknowledges also the support of PATHOS (FET Open) and DFG (FOR 7274). Publisher Copyright: Copyright N. E. Palaiodimopoulos et al. This work is licensed under the Creative Commons Attribution 4.0 International License. Published by the SciPost Foundation.

PY - 2023

Y1 - 2023

N2 - We examine spin excitation or polarization transfer via spin chains with long-range exchange interactions in the presence of diagonal and off-diagonal disorder. To this end, we determine the mean localization length of the single-excitation eigenstates of the chain for various strengths of the disorder. We then identify the energy eigenstates of the system with large localization length and sufficient support at the chain boundaries that are suitable to transfer an excitation between the sender and receiver spins connected to the opposite ends of the chain. We quantify the performance of two transfer schemes involving weak static couplings of the sender and receiver spins to the chain, and time-dependent couplings realizing stimulated adiabatic passage of the excitation via the intermediate eigenstates of the chain which exhibits improved performance.

AB - We examine spin excitation or polarization transfer via spin chains with long-range exchange interactions in the presence of diagonal and off-diagonal disorder. To this end, we determine the mean localization length of the single-excitation eigenstates of the chain for various strengths of the disorder. We then identify the energy eigenstates of the system with large localization length and sufficient support at the chain boundaries that are suitable to transfer an excitation between the sender and receiver spins connected to the opposite ends of the chain. We quantify the performance of two transfer schemes involving weak static couplings of the sender and receiver spins to the chain, and time-dependent couplings realizing stimulated adiabatic passage of the excitation via the intermediate eigenstates of the chain which exhibits improved performance.

UR - http://www.scopus.com/inward/record.url?scp=85152745872&partnerID=8YFLogxK

U2 - 10.21468/SciPostPhysCore.6.1.017

DO - 10.21468/SciPostPhysCore.6.1.017

M3 - Article

AN - SCOPUS:85152745872

SN - 2666-9366

VL - 6

JO - SciPost Physics Core

JF - SciPost Physics Core

IS - 1

M1 - 017

ER -

Excitation transfer in disordered spin chains with long-range exchange interactions

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this