3 ms·

I wonder if this would make it easier to forego extreme cooling. I know there are companies that have qubits on a chip, but NaAnys (My made up word) are much mo

I wonder if this would make it easier to forego extreme cooling. I know there are companies that have qubits on a chip, but NaAnys (My made up word) are much more stable.

jessriedel 3y ago
My impression as physicist in a different field is that quantum computing with non-Abelian anyons is notable because the error correction can be done mostly passively rather than actively. All error correction is, in a certain abstract sense, a form of cooling (i.e., sucking out entropy and thereby driving a system to a preferred subspace). These computers are notable in that the error correction literally is just cooling, and cooling is generally a lot easier than active error correction. It may also be true that the necessary temperatures to achieve are not as low as for other forms of quantum computing, but even if true I don't think that's the main selling point. Would love it have an expert chime in.
- Loughla 3y ago
  Can someone please explain quantum computing like i am a small Labrador puppy with a head injury? Because I read about it all the time, but just can't grasp.
  - Vecr 3y ago
    I'm pretty sure they can't. What it's not, though, is running all the programs at the same time.
  - jes5199 3y ago
    no, it can’t actually be made simple. Qbits are fundamentally unfamiliar. They have restrictions like “you cannot copy them” and “all operations must be reversible”. And what you get at the end is basically flipping a weighted coin, where the probabilities are constrained by the operations you did earlier. The only way to understand it is to immerse yourself in it. Think: motivated grad student, not puppy.
    - plank 3y ago
      A former physicist myself (with a PhD gotten for theoretical research into quantum optics): I really like the ‘weighted coin’ methaphor.
  - a_tartaruga 3y ago
    Start by learning quantum mechanics for dogs: https://www.goodreads.com/en/book/show/8243716 https://www.goodreads.com/en/book/show/8243716 Then go here: https://qubit.guide/index https://qubit.guide/index
  - jchallis 3y ago
    Saturday Morning Breakfast Cereal’s classic strip , The Talk, is extremely well done. https://www.smbc-comics.com/comic/the-talk-3 https://www.smbc-comics.com/comic/the-talk-3

I wonder if this would make it easier to forego extreme cooling. I know there are companies that have qubits on a chip, but NaAnys (My made up word) are much more stable.

jessriedel 3y ago

My impression as physicist in a different field is that quantum computing with non-Abelian anyons is notable because the error correction can be done mostly passively rather than actively. All error correction is, in a certain abstract sense, a form of cooling (i.e., sucking out entropy and thereby driving a system to a preferred subspace). These computers are notable in that the error correction literally is just cooling, and cooling is generally a lot easier than active error correction. It may also be true that the necessary temperatures to achieve are not as low as for other forms of quantum computing, but even if true I don't think that's the main selling point. Would love it have an expert chime in.

Loughla 3y ago
Can someone please explain quantum computing like i am a small Labrador puppy with a head injury? Because I read about it all the time, but just can't grasp.
- Vecr 3y ago
  I'm pretty sure they can't. What it's not, though, is running all the programs at the same time.
- jes5199 3y ago
  no, it can’t actually be made simple. Qbits are fundamentally unfamiliar. They have restrictions like “you cannot copy them” and “all operations must be reversible”. And what you get at the end is basically flipping a weighted coin, where the probabilities are constrained by the operations you did earlier. The only way to understand it is to immerse yourself in it. Think: motivated grad student, not puppy.
  - plank 3y ago
    A former physicist myself (with a PhD gotten for theoretical research into quantum optics): I really like the ‘weighted coin’ methaphor.
- a_tartaruga 3y ago
  Start by learning quantum mechanics for dogs: https://www.goodreads.com/en/book/show/8243716 https://www.goodreads.com/en/book/show/8243716 Then go here: https://qubit.guide/index https://qubit.guide/index
- jchallis 3y ago
  Saturday Morning Breakfast Cereal’s classic strip , The Talk, is extremely well done. https://www.smbc-comics.com/comic/the-talk-3 https://www.smbc-comics.com/comic/the-talk-3