# High-Performance Spin-State Memory for Telecom Quantum Information Applications

Source: [feeds.aps.org](http://link.aps.org/doi/10.1103/bgbx-ph24) · 2026-11-13 · Physics
Page: https://themorning.science/story/high-performance-spin-state-memory-for-telecom-quantum-information-applications-ba26539c8c0a29db
Kind: research · Impact: medium

## In brief

- A PRX Quantum paper by Stuart, Smith, Hedges, Ahlefeldt and Sellars reports an erbium quantum memory with a record classical efficiency.
- The memory stores spin states across multiple temporal modes.
- The work targets telecom-wavelength quantum information applications.

## Why it matters

Erbium emits and stores light at telecom wavelengths, so memories that work at these wavelengths could fit into existing fiber-optic infrastructure for quantum networks.

## Coverage

- [High-Performance Spin-State Memory for Telecom Quantum Information Applications](http://link.aps.org/doi/10.1103/bgbx-ph24) — feeds.aps.org, 2026-11-13

Tags: quantum memory, erbium, telecom, quantum networks, quantum information

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science