Will quantum tunnelling enable me to walk through walls?

Yes, but you have to define "eventually" as "much much longer than the lifetime of the universe".

The way quantum tunnelling works is that small particles like electrons don't normally exist as discrete points in space. They're more like "clouds", where there's a region of space where they could possibly exist. When the particle is observed, measured, or otherwise disturbed, its wave function collapsed and the particle appears at one specific point somewhere within the region that the cloud previously occupied.

So if an electron can get *very* close to a barrier, then a portion of its cloud may extend to the other side of the barrier. Then, when the electron is measured/observed/disturbed, the point where it collapses to can actually be on the other side of the barrier from where it started off.

The problem with trying to do this with larger objects is that these probability "clouds" are extremely tiny, so you'd never realistically be able to get close enough to the wall to appear on the other side. Plus, the larger particles that make up your body are already "collapsed and localized", rather than existing as a quantum cloud.

But, the probability of tunnelling reduces exponentially with distance, so it never *quite* reaches zero. As a result, there *is* a non-zero chance of a man-sized object tunnelling through a barrier, but it's as close to zero as you can possible imagine.

Maybe, but for something larger than an atom like your body, the probability of success within a finite amount of time is very low. In Theory, it could happen. (But that is not the way to bet unless you get very long odds.

You might enjoy:

http://www.pbs.org/wgbh/nova/elegant/

upper right: "Watch Program" >>> First Hour>>>Quantum Cafe

Practical answer will be No.

As the probability of tunnelling dies out exponentially (in general language, the fastest rate ever ) with the width of the wall and also is goes down with the size of the object and hence is negligible for objects with macroscopic size (like you).

Although its significant for small objects like electrons, that's why devices like scanning tunnelling electron microscopes could be built.

hope it helps.

You could try this but you will have to be made out of quanta to do this.

You can get quantum tunneling compound from http://www.maplin.co.uk/

99p a metre.

One atom might, at one time, but the chances of all of your atoms being in sync at the same time to penetrate a wall are a big, fat, ZERO.