Quantum Computing Research Archive

Automatically collected papers, preprints, and technical writing on quantum computing.

4701 entries · updated 08 Sep 2026 11:22 UTC RSS

December 2023

Ask HN: What has quantum computing achieved so far?

A Hacker News discussion thread in which a non-specialist asks what quantum computing has concretely delivered beyond sampling-style quantum advantage demonstrations, and whether any of it has become practically useful. No original research or results are presented; the value is in the community answers about the gap between benchmark experiments and applications.

Why it matters: Useful as a snapshot of how the broader software community perceives quantum computing's practical maturity, but contains no technical findings.

Industry, funding & policyoverview
Original abstract

As a lowly web developer I struggle to understand what concrete progress has been made in quantum computing. I understand there are papers that have shown results that no classical computer could achieve but what has translated into practical applications?

Quantum computing's reality check

A Hacker News discussion item, with no abstract available, apparently pointing to commentary on the gap between quantum computing expectations and current capability. Without the underlying article text, the specific claims and any data cited cannot be characterized.

Why it matters: Useful only as a pointer to community sentiment on quantum hype cycles; it contains no new technical result.

Industry, funding & policyoverview

IBM demonstrates 133-qubit Heron

Hacker News item pointing to IBM's announcement of Heron, a 133-qubit superconducting processor introduced alongside the Condor chip at IBM's late-2023 roadmap update. No abstract or technical detail accompanies the link, so specifics on gate fidelities and benchmarks are not available here.

Why it matters: Heron marked IBM's shift from chasing raw qubit count toward tunable-coupler devices with lower crosstalk, which is the architecture its subsequent systems build on.

Hardware: superconductingIndustry, funding & policyoverview

Exploring Quantum Computing with JavaScript: A Beginner's Guide

A beginner-oriented tutorial post, shared on Hacker News, on writing quantum computing code in JavaScript. No abstract is available, so the specific libraries and examples covered are unclear.

Why it matters: Of marginal interest to practitioners; relevant only as an entry point for web developers curious about quantum simulators in JavaScript.

Software & toolingoverview

Ask HN: How are quantum computing companies making money?

A Hacker News discussion thread asking how quantum computing companies currently generate revenue, given the gap between VC funding levels and demonstrated commercial applications. No technical results; the post is a question about business models and whether sellable business applications exist today.

Why it matters: Useful only as a snapshot of outside-industry skepticism about near-term quantum revenue; contains no research content.

Industry, funding & policyoverview
Original abstract

I see many companies raising VC but I'm not entirely clear what the business model is at the moment. Do they have business applications that can be sold already?

Optical effect advances quantum computing with atomic qubits to a new dimension

News item reporting an optical technique that extends control of atomic (neutral-atom) qubits into an additional spatial dimension. No abstract was available, so the specific mechanism, atom count, and fidelities are not established from the text provided.

Why it matters: 3D optical trapping and addressing would increase the number of atoms a neutral-atom processor can hold and control, but the claim needs the underlying paper to assess.

Hardware: neutral atomoverview