In quantum physics, time is treated as a parameter that evolves in a linear fashion within the framework of the theory. The Schrödinger equation, which describes the time evolution of quantum systems, assumes a linear progression of time.
However, it is important to note that there are theoretical frameworks, such as certain interpretations of quantum mechanics, that propose non-linear or non-classical features of time. For example, in some interpretations, time might be viewed as an emergent concept or entangled with other degrees of freedom in the quantum system.
If we were to consider a scenario where time does not progress in a straight line in quantum physics, it would have significant implications for our understanding of the theory. The behavior of quantum systems and the predictions of quantum mechanics are intimately linked to the linear progression of time. Non-linearities in time could potentially lead to deviations from the standard predictions of quantum mechanics.
However, it is important to note that any proposal suggesting non-linear or non-classical features of time would need to be consistent with the vast body of experimental evidence that supports the linear nature of time in quantum physics. Currently, there is no experimental evidence or widely accepted theoretical framework that supports the idea that time does not progress linearly in quantum physics.