Demystifier said:In the many-world interpretation of non-relativistic QM, the Schrodinger picture is certainly more fundamental than the Heisenberg one.
But this is not really so in canonical quantum gravity, where the two pictures are identical.
Yes.atyy said:Because there is no time evolution in canonical quantum gravity (time evolution is a gauge transformation)?
In relativistic QFT Heisenberg and Schrodinger pictures are different, so Schrodinger picture is the preferred one for MWI.atyy said:How about relativistic QFT?
The Many-worlds interpretation (MWI) is a theory in quantum mechanics that suggests the existence of multiple parallel universes, each with different versions of reality. It proposes that every time a quantum measurement is made, the universe splits into multiple copies, with each possible outcome occurring in a different universe.
Erwin Schrödinger and Werner Heisenberg were two prominent physicists who made significant contributions to the development of quantum mechanics. Schrödinger is best known for his wave equation, which describes the behavior of quantum particles, while Heisenberg is known for his uncertainty principle, which states that the more precisely we know a particle's position, the less we know about its momentum, and vice versa.
In the Schroedinger picture, the quantum state of a system evolves over time according to the Schrödinger equation, while the operators that represent physical observables remain constant. In the Heisenberg picture, it is the operators that evolve over time, while the quantum state remains constant. The two pictures are mathematically equivalent and can be used interchangeably to describe the same physical system.
The Many-worlds interpretation challenges our traditional understanding of reality by proposing the existence of an infinite number of parallel universes. This means that every possible outcome of a quantum measurement exists in a different universe, leading to the idea that there is no single objective reality, but rather a multitude of different realities.
Currently, there is no direct evidence that supports the Many-worlds interpretation. It is a theoretical concept that has been debated among physicists since its inception in the 1950s. However, some argue that the Many-worlds interpretation offers a more complete and elegant explanation of quantum mechanics compared to other interpretations, and it has gained popularity among some physicists in recent years.