Coherence Time Extension by Large-Scale Optical Spin Polarization in a Rare-Earth Doped Crystal

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Coherence Time Extension by Large-Scale Optical Spin Polarization in a Rare-Earth Doped Crystal. / Welinski, Sacha; Tiranov, Alexey; Businger, Moritz; Ferrier, Alban; Afzelius, Mikael; Goldner, Philippe.

In: Physical Review X, Vol. 10, No. 3, 031060, 16.09.2020.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Welinski, S, Tiranov, A, Businger, M, Ferrier, A, Afzelius, M & Goldner, P 2020, 'Coherence Time Extension by Large-Scale Optical Spin Polarization in a Rare-Earth Doped Crystal', Physical Review X, vol. 10, no. 3, 031060. https://doi.org/10.1103/PhysRevX.10.031060

APA

Welinski, S., Tiranov, A., Businger, M., Ferrier, A., Afzelius, M., & Goldner, P. (2020). Coherence Time Extension by Large-Scale Optical Spin Polarization in a Rare-Earth Doped Crystal. Physical Review X, 10(3), [031060]. https://doi.org/10.1103/PhysRevX.10.031060

Vancouver

Welinski S, Tiranov A, Businger M, Ferrier A, Afzelius M, Goldner P. Coherence Time Extension by Large-Scale Optical Spin Polarization in a Rare-Earth Doped Crystal. Physical Review X. 2020 Sep 16;10(3). 031060. https://doi.org/10.1103/PhysRevX.10.031060

Author

Welinski, Sacha ; Tiranov, Alexey ; Businger, Moritz ; Ferrier, Alban ; Afzelius, Mikael ; Goldner, Philippe. / Coherence Time Extension by Large-Scale Optical Spin Polarization in a Rare-Earth Doped Crystal. In: Physical Review X. 2020 ; Vol. 10, No. 3.

Bibtex

@article{13520dda55284894be446918462f88e5,
title = "Coherence Time Extension by Large-Scale Optical Spin Polarization in a Rare-Earth Doped Crystal",
abstract = "Optically addressable spins are actively investigated in quantum communication, processing, and sensing. Optical and spin coherence lifetimes, which determine quantum operation fidelity and storage time, are often limited by spin-spin interactions, which can be decreased by polarizing spins. Spin polarization can be achieved using optical pumping, large magnetic fields, or mK-range temperatures. Here, we show that optical pumping of a small fraction of ions with a fixed-frequency laser, coupled with spin-spin interactions and spin diffusion, leads to substantial spin polarization in a paramagnetic rare-earth doped crystal, Yb-171(3+): Y2SiO5. Indeed, more than 90% spin polarization has been achieved at 2 K and zero magnetic field. Using this spin polarization mechanism, we further demonstrate an increase in optical coherence lifetime from 0.3 ms to 0.8 ms, due to a strong decrease in spin-spin interactions. This effect opens the way to new schemes for obtaining long optical and spin coherence lifetimes in various solid-state systems such as ensembles of rare-earth ions or color centers in diamond, which are of interest for a broad range of quantum technologies.",
keywords = "QUANTUM MEMORY, TRANSITIONS, STORAGE",
author = "Sacha Welinski and Alexey Tiranov and Moritz Businger and Alban Ferrier and Mikael Afzelius and Philippe Goldner",
year = "2020",
month = sep,
day = "16",
doi = "10.1103/PhysRevX.10.031060",
language = "English",
volume = "10",
journal = "Physical Review X",
issn = "2160-3308",
publisher = "American Physical Society",
number = "3",

}

RIS

TY - JOUR

T1 - Coherence Time Extension by Large-Scale Optical Spin Polarization in a Rare-Earth Doped Crystal

AU - Welinski, Sacha

AU - Tiranov, Alexey

AU - Businger, Moritz

AU - Ferrier, Alban

AU - Afzelius, Mikael

AU - Goldner, Philippe

PY - 2020/9/16

Y1 - 2020/9/16

N2 - Optically addressable spins are actively investigated in quantum communication, processing, and sensing. Optical and spin coherence lifetimes, which determine quantum operation fidelity and storage time, are often limited by spin-spin interactions, which can be decreased by polarizing spins. Spin polarization can be achieved using optical pumping, large magnetic fields, or mK-range temperatures. Here, we show that optical pumping of a small fraction of ions with a fixed-frequency laser, coupled with spin-spin interactions and spin diffusion, leads to substantial spin polarization in a paramagnetic rare-earth doped crystal, Yb-171(3+): Y2SiO5. Indeed, more than 90% spin polarization has been achieved at 2 K and zero magnetic field. Using this spin polarization mechanism, we further demonstrate an increase in optical coherence lifetime from 0.3 ms to 0.8 ms, due to a strong decrease in spin-spin interactions. This effect opens the way to new schemes for obtaining long optical and spin coherence lifetimes in various solid-state systems such as ensembles of rare-earth ions or color centers in diamond, which are of interest for a broad range of quantum technologies.

AB - Optically addressable spins are actively investigated in quantum communication, processing, and sensing. Optical and spin coherence lifetimes, which determine quantum operation fidelity and storage time, are often limited by spin-spin interactions, which can be decreased by polarizing spins. Spin polarization can be achieved using optical pumping, large magnetic fields, or mK-range temperatures. Here, we show that optical pumping of a small fraction of ions with a fixed-frequency laser, coupled with spin-spin interactions and spin diffusion, leads to substantial spin polarization in a paramagnetic rare-earth doped crystal, Yb-171(3+): Y2SiO5. Indeed, more than 90% spin polarization has been achieved at 2 K and zero magnetic field. Using this spin polarization mechanism, we further demonstrate an increase in optical coherence lifetime from 0.3 ms to 0.8 ms, due to a strong decrease in spin-spin interactions. This effect opens the way to new schemes for obtaining long optical and spin coherence lifetimes in various solid-state systems such as ensembles of rare-earth ions or color centers in diamond, which are of interest for a broad range of quantum technologies.

KW - QUANTUM MEMORY

KW - TRANSITIONS

KW - STORAGE

U2 - 10.1103/PhysRevX.10.031060

DO - 10.1103/PhysRevX.10.031060

M3 - Journal article

VL - 10

JO - Physical Review X

JF - Physical Review X

SN - 2160-3308

IS - 3

M1 - 031060

ER -

ID: 249163497