Question

Identify a process that exhibits CT violations and explain how you know it does? Is violation of time-reversal invariance (T) in any way strange for a macroscopic process?

Short answer

In our universe, there is a lot of matter, but almost no anti-matter, which exhibits$CT$ violation.The violation of time-reversal invariance $\left(T\right)$ is not strange for a macroscopic process since, as far as we know, almost without exception, macroscopic processes are irreversible in time.

Step-by-step solution

Given data

violation.

Concept of CT violation

$\mathit{C}\mathit{T}$violationis the violation of combinedconservation lawsassociated withcharge conjugation$\mathbf{\left(}\mathbf{C}\mathbf{\right)}$andtime reversal $\mathbf{\left(}\mathbf{T}\mathbf{\right)}$by theatomicinteractions.

Explanation of the process that exhibitsCPviolation

In our universe, there is a lot of matter, but almost no anti-matter, which exhibits $CT$violation.

We know the physics laws must be different for particles and anti-particles because there is almost no anti-matter left in the universe today.

The violation of time-reversal invariance $\left(T\right)$ is not strange for a macroscopic process since, as far as we know, almost without exception, macroscopic processes are irreversible in time.

Hence, we do not have time travel.