Samplinglib
Lean gate passed 2026-08-19T06:04:36.257124+00:00 · 77184245109a
5.2 · Book p. 145 · PDF p. 157

Hamiltonian Monte Carlo

Introduces Hamiltonian dynamics, momentum refreshment, and the geometric mechanisms behind long-distance proposals.

Open this section in the canonical August 9 source ↗

Place in the proof route

The chapter uses this material in the route toward Randomized midpoint improves the low-accuracy dimension dependence over basic Euler discretization. The declaration-level source map is intentionally left inside the formalization layer until exact theorem anchors have been audited.

Why is this valid?

Chapter-level validity conditions

  • Invariant phase-space laws require both position and momentum normalization.
  • Hypocoercive estimates mix position and velocity norms; coercivity is not pointwise in the position coordinate alone.
  • Exact Hamiltonian flow and numerical integrators must not be conflated.
View Lean formalization

No declaration-level mapping has been accepted for this section. This is a route status, not a failed Lean declaration.