Quantum thermometry
Temperature changes thermal occupation and transition populations.
$$p_e=1/(1+e^{\hbar\omega/(k_BT)})$$
Physical intuition
Temperature changes thermal occupation and transition populations.
Deep dive: physical mechanism
A calibrated quantum transition or spin relaxation process encodes temperature through a known response.
What is measured experimentally?
Measure population ratios, resonance shifts or relaxation rates.
Assumptions, noise and limitations
Nonthermal environments and self-heating invalidate equilibrium models.
Research and simulation exercise
Fit temperature from noisy two-level population measurements.
Connect the ideas
Explore the chapter overview, learning path, and references.