What happens after we die? Is death the end of everything or is there any life after death? I think many of us have been curious about this at least once in our lifetime.

Two researchers specialized in quantum physics state that they can prove the existence of life after death and the soul. Dr. Stuart Hameroff, an American physicist, and Sir Roger Penrose, who is from the UK, have developed a quantum theory of consciousness. They have been working on this theory since 1996. This unusual theory says that the souls of the human beings would be contained by the brain cells in some structures inside them called "microtubules".

According to the two scientists, our brain is a biological computer and the consciousness is a program run by the quantum computer found in the brain that continues to exist after we die.

They argue that what people perceive as consciousness is actually the result of quantum gravity effects inside these microtubules. This process is named by the two scientists "Orchestrated Objective Reduction" (Orch-OR).

According to this theory, when people enter clinical death, the microtubules lose their quantum state but don't lose the information they contain. In other words, after we die the soul comes back to the universe: it will never die.

Thus, our souls are actually more than the interaction of neurons in our brain and they could have existed from the beginning of time.

Dr. Stuart Hameroff says that if a patient's heart stops beating the microtubules lose their quantum state but the quantum information is not lost because it can't be destroyed: it's being distributed in the universe.

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He added that, if a patient is resuscitated, the quantum information returns to the microtubule and the patient would say he had a near death experience.

This theory was extensively explained by Dr. Stuart Hameroff in the documentary "Through the Wormhole" which was broadcasted by the Science Channel.

Many skeptics have criticized the "Orch-OR theory" and it remains a controversial theory among the scientific community.