Multiplexed color centers in a silicon photonic cavity array

Fuente: arXiv
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Autori principali: Komza, Lukasz, Zhang, Xueyue, Song, Hanbin, Tang, Yu-Lung, Wei, Xin, Sipahigil, Alp
Natura: Preprint
Pubblicazione: 2025
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author Komza, Lukasz
Zhang, Xueyue
Song, Hanbin
Tang, Yu-Lung
Wei, Xin
Sipahigil, Alp
author_facet Komza, Lukasz
Zhang, Xueyue
Song, Hanbin
Tang, Yu-Lung
Wei, Xin
Sipahigil, Alp
contents Entanglement distribution is central to the modular scaling of quantum processors and establishing quantum networks. Color centers with telecom-band transitions and long spin coherence times are suitable candidates for long-distance entanglement distribution. However, high-bandwidth memory-enhanced quantum communication is limited by high-yield, scalable creation of efficient spin-photon interfaces. Here, we develop a silicon photonics platform consisting of arrays of bus-coupled cavities. The coupling to a common bus waveguide enables simultaneous access to individually addressable cavity-enhanced T center arrays. We demonstrate frequency-multiplexed operation of two T centers in separate photonic crystal cavities. In addition, we investigate the cavity enhancement of a T center through hybridized modes formed between physically distant cavities. Our results show that bus-coupled arrays of cavity-enhanced color centers could enable efficient on-chip and long-distance entanglement distribution.
format Preprint
id arxiv_https___arxiv_org_abs_2501_17339
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Multiplexed color centers in a silicon photonic cavity array
Komza, Lukasz
Zhang, Xueyue
Song, Hanbin
Tang, Yu-Lung
Wei, Xin
Sipahigil, Alp
Quantum Physics
Mesoscale and Nanoscale Physics
Optics
Entanglement distribution is central to the modular scaling of quantum processors and establishing quantum networks. Color centers with telecom-band transitions and long spin coherence times are suitable candidates for long-distance entanglement distribution. However, high-bandwidth memory-enhanced quantum communication is limited by high-yield, scalable creation of efficient spin-photon interfaces. Here, we develop a silicon photonics platform consisting of arrays of bus-coupled cavities. The coupling to a common bus waveguide enables simultaneous access to individually addressable cavity-enhanced T center arrays. We demonstrate frequency-multiplexed operation of two T centers in separate photonic crystal cavities. In addition, we investigate the cavity enhancement of a T center through hybridized modes formed between physically distant cavities. Our results show that bus-coupled arrays of cavity-enhanced color centers could enable efficient on-chip and long-distance entanglement distribution.
title Multiplexed color centers in a silicon photonic cavity array
topic Quantum Physics
Mesoscale and Nanoscale Physics
Optics
url https://arxiv.org/abs/2501.17339