Quantum mechanics tells that the wave function is an `indivisible’ entity or a `whole’ entity. Moreover, by the no-Hiding theorem the wave function cannot be lost.
If it is missing from one system it simply moves to another subsystem. If quantum mechanics is applicable to material world as well as living systems, then the conservation of wave function should lead to reincarnation. When a physical body demises the wave function of the inexpressible self migrates from one physical body to another physical body where it continues to exist in accordance with the quantum no-hiding theorem. Thus, quantum mechanics proves that reincarnation is possible and has the potential to answer several facets of life after death.
By the way, this I had realized immediately after we proved the no-Hiding theorem.