Ansible | Ender's Game Wiki
The Philotic Parallax Instantaneous Communicator, more commonly known as the Ansible, was a device used for instantaneous communication across any distance
A Philote was the most basic building block of matter, an indivisible particle not made up of smaller components. Philotes took up no space whatsoever, and were essential to the theory of philotic energy. Each atom had a philote of its own, each molecule likewise, and ultimately each human had an aiúa, an intelligent philote. It was theorized that perhaps a single philote contained the essence of humanity, and/or all sentient species in the known universe.[1]
Philotic energy was used as a form of faster-than-light communication, in which messages are transmitted instantaneously via Ansible. Later on, it was also used as a form of near-instantaneous travel, to be transported Outside and back in, arriving at the specified destination (which may be any distance from the origin).
Re: Xenocide of buggers: Due to the Formic hivemind, this massive blow effectively ended the species, as individual Formic workers could not think or act on their own without a Hive Queen to direct them, and thus they began to die. With this decisive victory, the humans had won the Formic Wars by committing Xenocide, the utter destruction of the Formic species
The sentient artificial intelligence, Jane, was composed of a network of philotic connections between Ansibles. After the Xenocide, this Aiúa existed as a single philotic ray between Ender and the Mind Game.