Back to News
quantum-computing

Impossible Physics is Implicit in Quantum Value Prop...Isn't it?

Reddit r/QuantumComputing (RSS)
Loading...
2 min read
0 likes
⚡ Quantum Brief
A computational debate challenges quantum computing’s core value proposition, framing two opposing models: stochastic classical acceleration via smaller units or nonlocal effects enabling faster-than-light information leverage. The first model aligns with Moore’s Law, offering incremental speedups through photonics or low-energy qubits, while the second promises revolutionary gains via nonlocality—despite lacking empirical proof of FTL communication. Investors favor the nonlocal narrative due to its disruptive potential, though critics argue classical photonics may deliver similar gains without quantum’s unproven claims, creating financial and ethical risks in funding decisions. The author, a computational expert, equates quantum entanglement to statistical coupling in isolated systems, dismissing "magic" information transfer unless new physics emerges, defaulting to the classical model as the null hypothesis. The post warns of overhyped quantum promises driving funding away from viable classical alternatives, urging scrutiny of claims that defy known physics.
Impossible Physics is Implicit in Quantum Value Prop...Isn't it?

Summarize this article with:

I want to tackle this exclusively from a computational standpoint. There are two cases: Quantum Computing is stochastic classical computation with a smaller physical unit at lower energy levels and higher computational frequency. This is already happening in photonics, and represents a normal Moore's law style speed up. Quantum Computing leverages natural nonlocal effects for a non-local computing advantage. By non local I mean a computational advantage that cannot be achieved without using information outside the processor's causal light cone. So FTL communication creates nonclassical speed up. (2) is definitively the value prop sold to computer science people with bags of cash and a lack of sophistication in physics. (1) is still going to be a speed up. But if you are investing on the basis of (1), you would probably prefer classical photonics research over electron oriented qubits. So there is huge financial and moral hazard motivating the implication of (2). Let that stinker float. Now, I am familiar with the physics, but I am a lot more familiar with the math tools used in the physics, and the computer science around it all. From my understanding, I have yet to learn anything about entanglement that differentiates it from what I'd expect out of a standard statistical coupling of stochastic processes with perfect energy isolation. So unless there is some magic information transfer, I am a priori going to have to look at (1) as the null hypothesis, and yet (2) is the value prop. submitted by /u/fnreq [link] [comments]

Read Original

Tags

energy-climate
government-funding
quantum-computing
quantum-hardware

Source Information

Source: Reddit r/QuantumComputing (RSS)