  Thermodynamics and its quantum counterpart are traditionally described with
statistical ensembles. Canonical typicality has related statistical mechanics
for a system to ensembles of global energy eigen- states of system and its
environment analyzing their cardinality. We show that the canonical density for
a system emerges from a maximally entangled global state of system and
environment through relational complex time evolution between system and
environment without the need to maximize the entropy or to count states.
