Tunneling in a non-subatomic particles

• Si14
In summary, the conversation discusses the concept of quantum tunneling and whether it can be scaled up to macroscopic objects. It is theoretically possible, but the chances are extremely small and it is not practical to use quantum mechanics for larger objects. Superconductivity is an example of where classical theory breaks down on a macroscopic scale.
Si14
Hi,
We now electrons do tunnel and for example FE happens because of this.
However, is it true to scale up this effect for non-subatomic particles? For example, is it OK to say, if you are behind a wall and hit yourself to the wall, there is a chance that you might Tunnel and see yourself on the other side of the wall?
Thanks.

As with most things in QM, statistically that probability is non-zero. If you look at the macroscopic wave function of yourself and the wall, you can in theory calculate it - though in practice you would have trouble finding a computer that can even solve that for a fraction of the particles. And the number you will find is so small that even if all the world population having lived up until now had tried that once per second throughout the life time of the universe, the chances of actually finding someone on the other side would still be zero for all practical purposes. If you are into those kinds of experiments, try the monkeys-with-typewriters experiment, it will be a piece of cake compared to this one :)

I like the prior answer, but I do always wonder if such quantum theory has ANY application to such large objects.

In other words, classically, you are about as likely to move thru a wall as a ball is to run uphill by borrowing energy from the particles in the hill. It just isn't going to happen.

As I said, this is all theoretical: of course QM does apply to macroscopic scales, but (usually!) it is infeasible to use it and unnecessary because we have a perfectly usable limit, i.e. classical theory.

Note that of course in some circumstances, classical theory breaks down even on macroscopic scales. Superconductivity is one example.

1. What is tunneling in non-subatomic particles?

Tunneling in non-subatomic particles refers to the phenomenon where particles are able to pass through barriers or potential energy barriers that they would not have enough energy to overcome in classical physics. This is possible due to the probabilistic nature of quantum mechanics.

2. How does tunneling occur in non-subatomic particles?

Tunneling occurs in non-subatomic particles when there is a quantum tunneling effect, where the particle has a small but non-zero probability of appearing on the other side of the barrier, even though it does not have enough energy to pass through it classically.

3. What is the significance of tunneling in non-subatomic particles?

Tunneling in non-subatomic particles has important implications in various areas of physics, such as solid state physics and nuclear physics. It allows for the explanation of certain phenomena, such as alpha decay and electron tunneling in transistors.

4. Can tunneling be observed in non-subatomic particles?

Yes, tunneling in non-subatomic particles has been observed in various experiments. For example, the scanning tunneling microscope relies on the tunneling of electrons to create images of surfaces at the atomic level.

5. Are there any practical applications of tunneling in non-subatomic particles?

Yes, tunneling in non-subatomic particles has several practical applications in technology, such as in transistors, flash memory, and tunnel diodes. It also plays a crucial role in the development of quantum computing and nanotechnology.

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