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If we increase the temperature of a body so much that its wavelength becomes less than the Planck length, the quantum nature could break down as the wavelength of the particle is lesser than the so-called least possible length.

So my question is:

How will the particle behave when it will go through such a transition?

Does it mean that the existence of such a particle beyond this temperature collapses?

Or it enters into a whole new state of matter where the particles behave entirely different, like BEC?

1 Answers1

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I like to think there is a minimum time unit (possibly smaller than the Planck time interval) because a whole bunch of things would start to make sense if tat was the case (in my opinion), but unfortunately there is no experimental evidence that supports a minimum time scale or a minimum length or a maximum temperature or any other Planckian units as being universal indivisible units. It is very difficult to probe down to the Planck scale experimentally and it may be impossible to do so, due to the Heisenberg uncertainty principle which states that the more certain we are about the location of a particle (e.g. to within a Planck length) then the more uncertain is its momentum and vice versa, so what is going on at the sub-Planckian level is essentially unmeasurable in any sensible way. Things would appear to be pretty chaotic down there. Many physicists believe physics would be different at that level and possibly there are new emergent properties when we transition to that scale. Loop quantum theory attempts to explain what happens at that level, but there is as yet no common consensus.

KDP
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