Kvanttikehys

Kvanttikehys, often translated as quantum frame or quantum reference frame, is a theoretical concept in quantum mechanics that addresses the fundamental challenge of describing quantum phenomena from the perspective of an observer. Unlike classical physics, where reference frames are absolute and well-defined, in quantum mechanics, the observer's own quantum state can influence the measurement outcomes and the very nature of the observed system. This means that an observer's quantum properties, such as their position or momentum, can become entangled with the system they are observing.

The idea of a quantum frame is crucial for understanding quantum gravity and the unification of general relativity with quantum mechanics. In these contexts, both the observer and the system being observed might be governed by quantum rules, leading to complex interdependencies. For instance, if an observer is in a superposition of states, their "frame of reference" is also in a superposition, making it challenging to define a consistent viewpoint.

Research in this area explores how to formalize these quantum reference frames mathematically. It involves developing new theoretical frameworks that can account for the non-trivial correlations between the observer and the observed. This is particularly important when considering scenarios involving black holes or the early universe, where quantum effects are dominant and the classical notion of a fixed observer breaks down. The development of quantum reference frames is an active and ongoing area of theoretical physics.