# Is the phase transition threshold for Hamiltonicity known for the hypercube?

Pretty much just the question in the title. Given a random graph formed from the hypercube, is it known what the phase transition (edge probability) is to find a Hamiltonian path with probability 1 in the limit? It is known for Erdos-Renyi random graphs, but I can't seem to find if anyone has shown this.

More generally, has anyone shown Hamiltonian phase transitions for random graphs on centrally symmetric polytopes?

As a partial answer, a very sharp threshold for $$2$$-connectivity is $$p = \frac12 + \frac{\ln n}{2n}$$, where $$n$$ is the dimension of the hypercube. More precisely, by Theorem 1.1 in this paper, if $$p = \frac12 + \frac{\ln n}{2n} + \frac cn$$, then the random subgraph of the hypercube is $$2$$-connected with probability tending to $$e^{-e^{-2c}}$$ as $$n \to \infty$$, and w.h.p. $$1$$-connected otherwise. This is also the threshold for having minimum degree $$2$$.
A related result by Bollobás shows that if we add random edges of the hypercube one at a time, the hitting time for having no isolated vertices, for being connected, and for having a perfect matching are the same. (In particular, the threshold $$p=\frac12$$ is the same for both.)
Similarly, I would not be surprised if it turned out that - just as in ordinary random graphs - having minimum degree $$2$$ were enough to guarantee a Hamiltonian cycle, in which case the threshold in the first paragraph above would be the correct answer. It doesn't seem like anyone knows whether this is true.