research
A Nanodiamond Read Heat to 682 Microkelvin
Dual nitrogen-vacancy centers and a dedicated sensing chip improved nanoscale temperature sensitivity by an order of magnitude over prior reports.
Summary
Dual nitrogen-vacancy centers and a dedicated sensing chip improved nanoscale temperature sensitivity by an order of magnitude over prior reports.
The team used isotopically purified nanodiamonds containing two nitrogen-vacancy centers with a purpose-built quantum sensing chip. It reports robust temperature measurements with 682-microkelvin error, experimental sensitivity below 50 millikelvin per square-root hertz and a shot-noise-limited value of 9.6 millikelvin per square-root hertz. The setup also measured heating from its own excitation laser and observed transient heat from mixing dimethyl sulfoxide with water at nanometre scale. The work demonstrates a sensing platform; proposed uses in living systems and catalyst assessment remain future applications.
Why it matters
Dual nitrogen-vacancy centers and a dedicated sensing chip improved nanoscale temperature sensitivity by an order of magnitude over prior reports.
Limits and context
- The work demonstrates a sensing platform; proposed uses in living systems and catalyst assessment remain future applications.
Key claims
Dual nitrogen-vacancy centers and a dedicated sensing chip improved nanoscale temperature sensitivity by an order of magnitude over prior reports.
Qualification: The work demonstrates a sensing platform; proposed uses in living systems and catalyst assessment remain future applications.
Evidence: source-2026-09-08-005
Sources
- arXiv preprint 2609.04907arXiv · primary research
Corrections
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