4 ms·
You might have heard of the Uncertainty Principle? Basically it says that ΔxΔp ≥ ℏ/2. Well the principle is more general (look up Fourier analysis) and it can b
by mablap 10y ago
You might have heard of the Uncertainty Principle? Basically it says that ΔxΔp ≥ ℏ/2. Well the principle is more general (look up Fourier analysis) and it can be shown that ΔtΔE ≥ ℏ/2 as well.
- schoen 10y agoHave a Unicode Δ and a Unicode ℏ for your future use!
- mirimir 10y agoThat's a different sort of "t", isn't it? As in the lifetime of a state, rather than a measurement of duration.
- mablap 10y agoIt is indeed, because "time" is not an operator in QM, unlike H or x or p. But from my limited understanding of the time-energy uncertainty relation, you could (as you say) consider it a measure of lifetime - the time it takes for a change in E . So if you get a higher energy, you also should get less change in time, and thus you could probe smaller timeframes. I might be wrong though. Someone shoot that argument down if you have to ;)
- M_Grey 10y agoThe spacetime interval should be invariant across frames, so there should be a problem there.