Our World Is Part of Parallel Quantum Universes
Quantum entanglement and superposition may seem like strange phenomena, but they ultimately create stable realities like ours.
Everything we see around us, any objects and phenomena, and of course people, are part of the classical world. This world is governed by the laws of classical physics.
But quantum mechanics allows us to see the peculiarities of a tiny world where atoms and subatomic particles play the main role. This world is called quantum and it is home to seemingly very strange things that sometimes contradict classical physics.
For example, in the classical world, water can only be in one of three states at a time: liquid, solid, and gas. It cannot be in two states at the same time. But in the quantum world, a particle can exist in several states at the same time due to a phenomenon known as superposition.
Many other phenomena make the quantum and classical worlds completely different. Although new modeling shows that the classical world arises from a large number of parallel quantum universes.
Physicists believe that the emergence of our world does not require special conditions and is natural and inevitable. The study was published in the journal Physical Review X.
According to the many-worlds interpretation of quantum mechanics, every time a quantum measurement occurs, the Universe is divided into different parts, each of which creates a parallel world with its own special reality.
Physicists propose that our classical world is one such stable part. In these diverse realities, familiar classical experience is not only possible, but is an inevitable consequence of how quantum systems behave at the macro level.
The physicists’ conclusions are confirmed by modeling various quantum systems, in which the authors of the study analyzed the evolution of these systems at 50,000 different energy levels. The modeling showed that large stable areas can arise in the Universe.
When physicists changed the energy levels, the strength of the bonds, and other initial conditions for quantum systems, this still resulted in the creation of similar parts of the universe.
Therefore, physicists came to the conclusion that the creation of a classical system, which obeys the laws of classical physics, from quantum events is a natural and inevitable process.
According to the many-worlds interpretation of quantum mechanics, every time a quantum measurement occurs, the Universe is divided into different parts, each of which creates a parallel world with its own special reality.
This is not the first study to link the classical and quantum worlds using the many-worlds interpretation of quantum mechanics.
Previously, physicists tried to connect the two worlds by focusing on quantum decoherence, a phenomenon that suggests that quantum systems lose their strangeness, such as entanglement and superposition, when measured at the macro level.
But these studies relied on certain conditions and assumptions for their results. The new study shows that classical systems must emerge from quantum events without any fine-tuning.
Physicists believe that although quantum events appear chaotic and produce many outcomes, they can produce a set of properties that remain consistent and stable. Therefore, scientists believe that our classical world actually emerges naturally from the quantum world.
