TunnellingPassing through a barrier without the energy to climb it.PhysicsWhere tunnelling matters.In natureAlpha decay — escaping the Coulomb barrierStellar fusion at sub-classical temperaturesEnzyme proton transferSpontaneous DNA base tautomerismIn technologyScanning tunnelling microscope imaging atomsFlash memory writing through an oxideTunnel diodes for fast switchingJosephson junctions in superconductorsProbability falls exponentially with barrier width and height. A slightlythicker barrier can cut the rate by orders of magnitude.Tunnellinglearnposters.com
Tunnelling — printable physical science wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the Tunnelling poster

8 entries in 2 groups.

Where tunnelling matters.

Probability falls exponentially with barrier width and height. A slightly thicker barrier can cut the rate by orders of magnitude.

Questions about the Tunnelling poster

What’s on the Tunnelling poster?
8 entries in 2 groups. Where tunnelling matters. In nature: Alpha decay — escaping the Coulomb barrier, Stellar fusion at sub-classica…; In technology: Scanning tunnelling microscope imaging atoms, Flash memory writing thr…. Probability falls exponentially with barrier width and height. A slightly thicker barrier can cut the rate by orders of magnitude.
Who is the Tunnelling poster for?
Tunnelling belongs to the Physics section rather than to a school year, because physical science is not something one grade owns. Anyone learning quantum can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the Tunnelling poster?
The wavefunction decays inside a barrier but does not reach zero. Some amplitude gets through. A wall chart earns its place by being glanceable from where the work is happening, so Tunnelling belongs on the wall where that physical science work actually happens, within glancing distance, rather than filed away.
What other posters go with Tunnelling?
Quantum Numbers, Blackbody Radiation and Conservation Laws sit alongside Tunnelling in the Physics section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Quantum NumbersBlackbody RadiationConservation Laws
Is the Tunnelling poster free to download and print?
Yes. Tunnelling downloads as a free PDF with no account, no email and no watermark, like everything else in the Physics section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the Tunnelling poster print at?
Tunnelling is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Tunnelling loses nothing.Printing guide

Related posters

Charts that sit alongside Tunnelling on the same wall.

Browse every Physics poster, or start from the full catalogue.