Long-distance entanglement in antiferromagnetic XXZ spin chain with alternating interactions

Hu, Li-Zhen; Xu, Yu-Liang; Zhang, Panpan; Yan, Shiwei; Kong, Xiao

doi:10.1016/j.physa.2022.128170

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…In this regard, Venuti et al 7 have proposed a scheme for creating LDE in spin- and spin-1 chains, showing that this property appears only for given values of a specific microscopic parameter, which doesn’t coincide with known quantum critical points. Later, schemes have been suggested for generating LDE in XX spin chains 30 , 31 , in many-body atomic and optical systems 32 , in Motzkin and Fredkin spin chains 33 , and in antiferromagnetic XXZ spin chain with alternating interactions 34 as well. Additionally, it has been shown that robust temporally shaped control pulses for producing LDE can be derived in disordered spin chains 35 and that LDE can be enhanced for spin chains with dissipative processes through global measurements 36 .…”

Section: Introductionmentioning

confidence: 99%

Long distance entanglement and high-dimensional quantum teleportation in the Fermi–Hubbard model

Abaach

Mzaouali

Baz

2023

Sci Rep

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The long distance entanglement in finite size open Fermi–Hubbard chains, together with the end-to-end quantum teleportation are investigated. We show the peculiarity of the ground state of the Fermi–Hubbard model to support maximum long distance entanglement, which allows it to operate as a quantum resource for high fidelity long distance quantum teleportation. We determine the physical properties and conditions for creating scalable long distance entanglement and analyze its stability under the effect of the Coulomb interaction and the hopping amplitude. Furthermore, we show that the choice of the measurement basis in the protocol can drastically affect the fidelity of quantum teleportation and we argue that perfect information transfer can be attained by choosing an adequate basis reflecting the salient properties of the quantum channel, i.e. Hubbard projective measurements.

show abstract

Section: Introductionmentioning

confidence: 99%

Long distance entanglement and high-dimensional quantum teleportation in the Fermi–Hubbard model

Abaach

Mzaouali

Baz

2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…In this regard, Venuti et al 7 have proposed a scheme for creating LDE in spin- 1 2 and spin-1 chains, showing that this property appears only for given values of a specific microscopic parameter, which doesn't coincide with known quantum critical points. Later, schemes have been suggested for generating LDE in XX spin chains 30,31 , in many-body atomic and optical systems 32 , in Motzkin and Fredkin spin chains 33 , and in antiferromagnetic XXZ spin chain with alternating interactions 34 as well. Additionally, it has been shown that robust temporally shaped control pulses for producing LDE can be derived in disordered spin chains 35 and that LDE can be enhanced for spin chains with dissipative processes through global measurements 36 .…”

Section: Introductionmentioning

confidence: 99%

Long Distance Entanglement and High-Dimensional Quantum Teleportation in The Fermi-Hubbard Model

Abaach¹,

Mzaouali²,

Baz³

2022

Preprint

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The long distance entanglement in finite size open Fermi-Hubbard chains, together with the end-to-end quantum teleportation are investigated. We show the peculiarity of the ground state of the Fermi-Hubbard model to support maximum long distance entanglement, which allows it to operate as a quantum resource for high fidelity long distance quantum teleportation. We determine the physical properties and conditions for creating scalable long distance entanglement and analyze its stability under the effect of the Coulomb interaction and the hopping amplitude. Furthermore, we show that the choice of the measurement basis in the protocol can drastically affect the fidelity of quantum teleportation and we argue that perfect information transfer can be attained by choosing an adequate basis reflecting the salient properties of the quantum channel, i.e. Hubbard projective measurements.

show abstract

Long-distance entanglement in antiferromagnetic XXZ spin chain with alternating interactions

Cited by 2 publications

References 27 publications

Long distance entanglement and high-dimensional quantum teleportation in the Fermi–Hubbard model

Long distance entanglement and high-dimensional quantum teleportation in the Fermi–Hubbard model

Long Distance Entanglement and High-Dimensional Quantum Teleportation in The Fermi-Hubbard Model

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