On 9 mar, 12:26, PD <thedraperfam...@gmail.com> wrote: > On Mar 9, 9:13 am, mluttgens <lutt...@gmail.com> wrote:
> > Those who claim that an electron is volumeless remind > > me of those who consider that "an infinity of angels > > can be located on the head of a pin, since they > > do not occupy any space there"http://en.wikipedia.org/wiki/How_many_angels_can_dance_on_the_head_of... > > As you wish. I've already described to you why volume is only *known* > to be an attribute of composite objects. Your incredulity about it is > not really of concern. > > > > > Anyhow, "its Zitterbewegung allows the point-like > > electron to behave like a particle of definite size > > whose self-energy, that is, energy of its electromagnetic > > field, owns a finite value." > > > It's also worth noting that the Zitterbewegung is not > > a theoretical effect. It has been recently confirmed > > by Roos et al. at the University of Innsbruck, Austria, > > see > > >http://physicsworld.com/cws/article/news/41352 > > Yes, I missed that. Thanks for pointing out the result. > > > > > "European physicists have won the race to observe > > zitterbewegung, the violent trembling motion of > > an elementary particle that was predicted by Erwin > > Schrödinger in 1930. To observe this phenomenon, > > the team simulated the behaviour of a free electron > > with a single, laser-manipulated calcium ion trapped > > in an electrodynamic cage. > > > They took this approach because it is currently > > impossible to detect the quivering of a free electron, > > which has an amplitude of just 10?13 m and a frequency > > of 10^21 Hz. Computational simulations are also ruled > > out, because today's computers have insufficient power > > and memory capabilities. > > You may want to compare the 10-13 m amplitude with the observational > result that the electron has no structure down to 10-18 m. This may > illuminate for you the role of Zitterbewegung. > > > > > The researchers claim that their triumph may also > > serve as an important step towards using trapped ions > > and atoms to simulate high-temperature superconductivity, > > magnetism and even black holes." > > > Of course, you will say that, as the Roos > > experiment doesn't prove the Zitterbewegong of the > > electron, one is entitled, even with a quasi zero > > probability of being right, to keep claiming that the > > angels don't occupy any space. > > Not angels. Electrons. As far as we know. > > > Marcel Luttgens
"If the Electron is not a point particle, its physical dimensions are approximately no larger than ?0.01(fm)? and it seems improbable that the Electron has any ?structure?.
The derived value of Electron radius compares favourably to results obtained in High-Energy scattering experiments conducted at LANL. It has also been illustrated that a change in Electron mass of ?? +0.04(%)? accompanies the High-Energy scattering measurements. This suggests that the Electron radius depends on the manner in which it's measured and the energy absorbed by the Electron during the measuring process."
