Self-correcting quantum memories at finite temperature
A magnetic hard drive keeps a bit for years because flipping it costs energy that heat rarely supplies. The question is whether a quantum bit can be stored the same way, with no active correction, in a material in our three-dimensional world.
Why it matters
A passive quantum memory would remove much of the hardware and control cost of error correction and answers a basic question about thermal stability of quantum order.
Review
B. J. Brown, D. Loss, J. K. Pachos, C. N. Self and J. R. Wootton, Quantum memories at finite temperature, Reviews of Modern Physics, 2016. https://arxiv.org/abs/1411.6643 reference checked
Timestamp record
- Signed record
- 0ac91b5262bc…
- Public log
- Entry 345, in checkpoint 2,123
- In the log by
- Block 969,698, 2026-10-03
This text was in the PubPhys log by that date. The date says nothing about when the problem was first posed.