Hi everyone, first of all let me state I'm no expert in quantum physics. But I'd be glad if any of you would just introduce a little to how temperature is understood from the quantum model stand point. From a classical point of view I believe temperature is a measure of the internal energy of an object, which is given by the kinethic energy of the particles that compose the object, the vibrations of these particles. I might be wrong here, please correct me if so. In quantum physics, the behavior of sumatomic particles is caotic, so how can one understand the vibrations at this level, which ultimately give the temperature of the object? I hope I was clear here. I just want to know if my understanding of temperature is correct, and what the concept of temperature means in the world of quantum physics? WHAT is temperature, as scientists understand it today?