real life examples

[PRodQuanta]

What are some real life examples or consequences of quantum theory?
I.E-new technologies... and such.
Thanks
Paden Roder

[EL]

Originally posted by PRodQuanta
What are some real life examples or consequences of quantum theory?
I.E-new technologies... and such.
Thanks
Paden Roder

The transistor, which almost all modern electronics are based upon, is one of the most important examples.

[selfAdjoint]

The laser and the SQUID, for two more. All of modern chemistry (students who take high school chemistry get more quantum mechanics than those who take high school physics).

[Nereid]

(that's solid-state electronics; the valves etc are pure classical physics)

Other examples: diode laser (e.g. in your CD player), superconductors (so MRI equipment, for example), CCDs (e.g. your digital camera), SQUIDs, ...

[madhu367]

I suppose the Scanning Tunnelling Microscope is an excellent application how one uses the quantum tunnelling effect.

[dlgoff]

How about Photonic Crystals. They can be used to make surface-emitting quantum-cascade lasers.