Quantum Mechanics and Electrical Engineering

In summary: They study quantum physics so that they can better understand how electrons behave in materials, and vice versa.
  • #1
thegreenlaser
525
16
What areas of electrical engineering research require good knowledge of quantum mechanics? I'm an EE major minoring in Physics (done 3 years). I know I want to do research, but I'm trying to figure out what area(s) of research I want to pursue. Of my classes my favourites have been the ones related to electromagnetics and quantum mechanics (not to say I don't like anything else, those have just been my favourite). I have a decent idea of what there is in terms of applied "classical" electromagnetics because I have some experience there, but I'm really curious about what sort of electrical engineering applications involve quantum mechanics or "modern" physics in general, because I think I'd really enjoy something like that.

I have quite a bit of time to figure this out and I'm willing to search around for myself, but I really just need starting points: general research topics, companies, research groups, specific projects/papers, or anything else you happen to know of that has to do with modern physics (especially quantum) used in EE applications would be greatly appreciated. I plan to search around for more info on my own, but I'm really lacking starting places at this point.

Also, to be a little more specific in case it wasn't clear, I'm looking for things where I would actually need to understand quantum theory, not just things that are based on quantum. E.g., I know semiconductors are based on quantum physics, but all the semiconductor applications I'm familiar with (admittedly not that many) don't really require you to know much, if any, quantum mechanics.

Thanks.
 
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  • #2
Semiconductor diode laser design requires quantum mechanics, as does research in quantum computing.

I'm pretty sure the semiconductor engineers trying to reduce gate leakage of transistors care about quantum mechanics, as leakage is a tunneling phenomenon.
 
  • #3
If you reversed your question to instead be "What areas of experimental quantum physics research requires electrical energineering skills?" The answer would be very positive: nearly all!

If you just want to work with both electrical and quantum stuff, I could definitely recommend aiming for quantum physics experiments, because these are all fairly advance when it comes to the electronics needed, and there is a large demand for people with electronics backgrounds, especially analog electronics, to be interested in experimental quantum physics.
 
  • #4
Zarqon said:
If you reversed your question to instead be "What areas of experimental quantum physics research requires electrical energineering skills?" The answer would be very positive: nearly all!

If you just want to work with both electrical and quantum stuff, I could definitely recommend aiming for quantum physics experiments, because these are all fairly advance when it comes to the electronics needed, and there is a large demand for people with electronics backgrounds, especially analog electronics, to be interested in experimental quantum physics.

This is an interesting idea, but I'm not sure I do want to flip the question like that. To clarify my question, I think what I'm looking for is more "applied" quantum mechanics. That is, I think I'm more interested in using quantum theory to solve problems and design things rather than helping to discover/verify new physics.
 
  • #5
thegreenlaser said:
This is an interesting idea, but I'm not sure I do want to flip the question like that. To clarify my question, I think what I'm looking for is more "applied" quantum mechanics. That is, I think I'm more interested in using quantum theory to solve problems and design things rather than helping to discover/verify new physics.

One short answer would be quantum computing/information.
You probably have heard about people trying to make quantum computer, it's all about applying quantum physics knowledge in order to create a computer that works in a different way from the one you are using now, eventually achieving a high performance computer that can solve problems which take classical computer decades in just a few seconds (ideally).
 
  • #6
Semiconductors. Many EE devices work through principles of quantum mechanics. any device with a pn junction, such as diodes or transistors, work by quantum tunneling.
I am an ee, and during my first semiconductors class, our professor explained that a lot of the analysis and design of semiconductors is done side by side with physicists.
 

FAQ: Quantum Mechanics and Electrical Engineering

What is the difference between classical mechanics and quantum mechanics?

Classical mechanics is a set of physical laws that describe the behavior of macroscopic objects, while quantum mechanics is a set of laws that describe the behavior of particles at the atomic and subatomic level.

How does electrical engineering relate to quantum mechanics?

Electrical engineering heavily relies on quantum mechanics principles, such as the behavior of electrons and the effects of quantum tunneling in semiconductor devices, to design and produce electronic devices.

What is the Heisenberg uncertainty principle and how does it relate to quantum mechanics?

The Heisenberg uncertainty principle states that it is impossible to know both the exact position and momentum of a particle at the same time. This principle arises from the probabilistic nature of quantum mechanics, where the behavior of particles can only be described in terms of probabilities.

How does quantum mechanics explain the behavior of electrons in an atom?

Quantum mechanics explains the behavior of electrons in an atom through the concept of energy levels. Electrons can only exist in certain discrete energy levels around the nucleus, and they can transition between these levels by absorbing or emitting energy in the form of photons.

How is quantum mechanics used in modern technology?

Quantum mechanics is used in a wide range of modern technologies, including transistors, lasers, and computer memory. It also plays a crucial role in quantum computing, which has the potential to revolutionize data processing and encryption.

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