Modular interface for efficient optical readout of diamond quantum memory at cryogenic temperatures via single-mode optical fibers

Fuente: arXiv
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Autores principales: Kamimaki, Akira, Sekiguchi, Yuhei, Ito, Daisuke, Fujiwara, Taichi, Makino, Toshiharu, Kato, Hiromitsu, Kosaka, Hideo
Formato: Preprint
Publicado: 2025
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author Kamimaki, Akira
Sekiguchi, Yuhei
Ito, Daisuke
Fujiwara, Taichi
Makino, Toshiharu
Kato, Hiromitsu
Kosaka, Hideo
author_facet Kamimaki, Akira
Sekiguchi, Yuhei
Ito, Daisuke
Fujiwara, Taichi
Makino, Toshiharu
Kato, Hiromitsu
Kosaka, Hideo
contents Efficient quantum devices across various physical systems have been rapidly developed for entanglement-based quantum repeaters and spin-photon conversion; however, far less attention has been paid to standardizing platforms through quantum memory optical interfaces. We present a modular interface for color centers in diamond that is structurally isolated from device-and temperature-related variation. Despite a more than 100-fold reduction in confocal volume, we achieve highly efficient photon collection through single-mode optical fibers, including zero-phonon line spectroscopy, at both room and cryogenic temperatures. These results establish a standardized minimal NV-center-based platform and pave the way for construction of scalable quantum infrastructure.
format Preprint
id arxiv_https___arxiv_org_abs_2510_07032
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Modular interface for efficient optical readout of diamond quantum memory at cryogenic temperatures via single-mode optical fibers
Kamimaki, Akira
Sekiguchi, Yuhei
Ito, Daisuke
Fujiwara, Taichi
Makino, Toshiharu
Kato, Hiromitsu
Kosaka, Hideo
Quantum Physics
Efficient quantum devices across various physical systems have been rapidly developed for entanglement-based quantum repeaters and spin-photon conversion; however, far less attention has been paid to standardizing platforms through quantum memory optical interfaces. We present a modular interface for color centers in diamond that is structurally isolated from device-and temperature-related variation. Despite a more than 100-fold reduction in confocal volume, we achieve highly efficient photon collection through single-mode optical fibers, including zero-phonon line spectroscopy, at both room and cryogenic temperatures. These results establish a standardized minimal NV-center-based platform and pave the way for construction of scalable quantum infrastructure.
title Modular interface for efficient optical readout of diamond quantum memory at cryogenic temperatures via single-mode optical fibers
topic Quantum Physics
url https://arxiv.org/abs/2510.07032