4 ms·

The article is way too vague about what the researchers actually did to say anything useful about what their model says about the existence of wormholes, but us

The article is way too vague about what the researchers actually did to say anything useful about what their model says about the existence of wormholes, but usually the point of having used a quantum computer to model something is that it's done in a way that corresponds to something that can actually happen in reality. Unlike in a digital computer, where you need to have an idea of how the entire process works to simulate it, a quantum computer basically only needs you to understand the wave function, and the computer itself applies the quantum physics due to the nature of how it works. So, if you simulate a chemical reaction on a quantum computer, you're actually building the same wavefunction as would occur in reality and letting quantum mechanics "evaluate" it (thus giving you an actual physical result, barring all the imperfections of current quantum computers).

lupire 3y ago
Can you cite a resource that explains that? It doesn't sound right. A chemical reaction is far more complex than the few waves in a quantum computer.
- dotnet00 3y ago
  This seems like a decent explanation of what I had in mind: https://oxsci.org/quantum-computing-for-quantum-chemistry/ https://oxsci.org/quantum-computing-for-quantum-chemistry/ and this one a slightly more math based explanation: https://ahelwer.ca/post/2019-12-21-quantum-chemistry/ https://ahelwer.ca/post/2019-12-21-quantum-chemistry/ I'm trying to recall another far less outlandish result (than wormholes) that was also verified via quantum computer, but no dice at the moment. Edit: I might've been thinking of the simulation of a discrete time crystal on Google's quantum computer: https://physics.aps.org/articles/v14/131 https://physics.aps.org/articles/v14/131 'The researchers stress that this DTC behavior can also, in principle, be simulated on a classical computer. But in that case, “the bits in the computer evolve in a way that looks nothing like the physics we're interested in but nevertheless output numbers that replicate the outcomes of a hypothetical experiment,” Ippoliti says. In contrast, on a quantum computer, the qubits themselves exhibit the DTC behavior.'

lupire 3y ago

Can you cite a resource that explains that? It doesn't sound right. A chemical reaction is far more complex than the few waves in a quantum computer.

dotnet00 3y ago
This seems like a decent explanation of what I had in mind: https://oxsci.org/quantum-computing-for-quantum-chemistry/ https://oxsci.org/quantum-computing-for-quantum-chemistry/ and this one a slightly more math based explanation: https://ahelwer.ca/post/2019-12-21-quantum-chemistry/ https://ahelwer.ca/post/2019-12-21-quantum-chemistry/ I'm trying to recall another far less outlandish result (than wormholes) that was also verified via quantum computer, but no dice at the moment. Edit: I might've been thinking of the simulation of a discrete time crystal on Google's quantum computer: https://physics.aps.org/articles/v14/131 https://physics.aps.org/articles/v14/131 'The researchers stress that this DTC behavior can also, in principle, be simulated on a classical computer. But in that case, “the bits in the computer evolve in a way that looks nothing like the physics we're interested in but nevertheless output numbers that replicate the outcomes of a hypothetical experiment,” Ippoliti says. In contrast, on a quantum computer, the qubits themselves exhibit the DTC behavior.'