Quantum gravimetry and inertial sensing
Atom interferometers can measure acceleration against an optical phase reference.
$$\Delta\phi=k_{\mathrm{eff}}gT^2$$
Physical intuition
Atom interferometers can measure acceleration against an optical phase reference.
Deep dive: physical mechanism
Pulse timing and effective wave vector set gravity response; differential arrangements can reject common vibration.
What is measured experimentally?
Gravity gradients or acceleration estimates are extracted from fringe phase.
Assumptions, noise and limitations
Wavefront distortions and platform motion require corrections.
Research and simulation exercise
Estimate gravity sensitivity from atom number and interrogation time.
Connect the ideas
Explore the chapter overview, learning path, and references.