  In this article, we develop a version of Sen theory for equivariant vector
bundles on the Fargues-Fontaine curve. We show that every equivariant vector
bundle canonically descends to a locally analytic vector bundle. A comparison
with the theory of $(\varphi,\Gamma)$-modules in the cyclotomic case then
recovers the Cherbonnier-Colmez decompletion theorem. Next, we focus on the
subcategory of de Rham locally analytic vector bundles. Using the p-adic
monodromy theorem, we show that each locally analytic vector bundle
$\mathcal{E}$ has a canonical differential equation for which the space of
solutions has full rank. As a consequence, $\mathcal{E}$ and its sheaf of
solutions $\mathrm{Sol}(\mathcal{E})$ are in a natural correspondence, which
gives a geometric interpretation of a result of Berger on
$(\varphi,\Gamma)$-modules. In particular, if $V$ is a de Rham Galois
representation, its associated filtered $(\varphi,N,G_{K})$-module is realized
as the space of global solutions to the differential equation. A key to our
approach is a vanishing result for the higher locally analytic vectors of
representations satisfying the Tate-Sen formalism, which is also of independent
interest.
