Could there be more universes out there, identical or different from ours? Well, we don't know yet.
While a prominent concept in the MCU, Stephen Hawking's multiverse theory, which is a hypothetical set of all universes with their own space, time, matter, energy, and physical laws, remains unproven, existing only in the realm of movies and theoretical physics.
What we need to prove the existence of is a quantum device. It is simply a system that uses quantum mechanical effects to operate, relying on the control and manipulation of quantum interactions to achieve functionalities not possible in classical systems.
In physics, a quantum, the singular form of quanta, is the minimum amount of any physical entity. For instance, the quantum of light is a photon.
Now, to uncover the mysteries of the universe, we are going to need a particular quantum device: a gamma-ray laser.
This hypothetical device would be able to produce coherent gamma rays, much like how an ordinary laser produces coherent rays of visible light. A gamma ray (symbol γ) is a penetrating form of electromagnetic radiation that arises from high-energy interactions like the radioactive decay of atomic nuclei. It also arises from astronomical events like solar flares.
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