Where Quantum Computing Is Heading: The Industry Roadmap to 2035
Stage 1: now to 2027, noisy machines get useful
Today's machines are in the NISQ era. The goal is verifiable advantage on narrow tasks and proofs that logical qubits work. Hybrid computing with GPUs grows (NVQLink).
Stage 2: 2028 to 2030, the first error corrected systems
IBM targets Starling, with 200 logical qubits, in 2029. Others, including Quantinuum Ltd, Google, IonQ and PsiQuantum, have their own fault tolerance goals. See the innovators. The 2030 NIST deprecation date lands at the end of this stage.
Stage 3: 2030 to 2035, scale and applications
- Chemistry and materials: simulating molecules for batteries, fertilizer and drugs.
- Optimization and finance: see quantum in finance.
- Quantum networks: connecting machines, see quantum internet.
- Sensing and timing: see quantum sensing.
Security timeline
Quantum-vulnerable cryptography is to be disallowed after 2035 in NIST's draft plan. Blockchains plan upgrades before then, see chain roadmaps.
The honest caveats
- Roadmaps are targets and often slip.
- Useful applications may arrive later than expected, or in different areas.
- Skeptics question near term commercial value.
How the quantum theme connects to crypto
As quantum progress continues, the topic stays in the news, and crypto communities discuss it more. Read why the quantum narrative exists in crypto.
Where we are on the staircase
The first stage is already producing evidence. On July 30, 2026 IBM and the University of Chicago reported running 70 logical qubits through 2,415 logical two-qubit operations and 468 logical T gates in about 15 minutes, with encoding cutting effective error to about a tenth of the physical rate. That is the companies' announcement, and independent experts have said verification is the hard part. It is real progress on the path to the 2029 goal, and a long way from 200 logical qubits running 100 million gates.
A simple worked example of the gap
The July result used a few thousand logical operations. Starling is stated to target 100 million gates. That is roughly 40,000 times more operations. (100,000,000 divided by about 2,500 is about 40,000.) Bigger circuits also need lower error rates and more qubits, which is why roadmaps are described as targets. This is arithmetic on stated numbers, not a forecast.
Scenarios by milestone, not by date
| Milestone | What it would show | Where to read about it |
|---|---|---|
| Verified logical advantage | Error correction helps real tasks | advantage guide |
| Hundreds of logical qubits | Chemistry problems become reachable | use cases |
| Quantum links between machines | Scaling by networking | quantum internet |
| Post-quantum migration done | Old signatures retired | deadlines |
What to watch next, dated
- November 11 to 13, 2026: IBM Quantum Developer Conference, where hardware updates are expected.
- February 20 to 26, 2027: QIP, with the latest error correction theory.
- 2029: IBM's stated Starling target year.
- 2030 and 2035: the NIST transition dates in its draft plan.
Why upbeat and honest go together
The trend is clearly in quantum's favor: governments are funding, error correction is being demonstrated and standards bodies are planning. The honest part is that dates slip and uses will emerge unevenly. Both can be true.
What each group is betting on
- Hardware companies: publish dated roadmaps. IBM's page states Starling for 2029, with 200 logical qubits and 100 million gates.
- Governments: write procurement and migration deadlines, such as the 2031 federal date reported for the June 2026 cryptography order. See the orders guide.
- Standards bodies: NIST plans to retire quantum-vulnerable algorithms by 2035, and FIPS 206 for the Falcon-based signature standard was still pending in the sources we read.
Questions a skeptic and an optimist can agree on
Both sides agree that error correction is the key hurdle, that verification matters, and that cryptography migration is worth doing whatever the hardware timeline. They disagree on speed. A useful habit is to track milestones rather than argue about dates, using how to follow quantum news.
Sources and further reading
- IBM quantum roadmap
- The Quantum Insider: migration timelines
- Berkeley Nucleonics: quantum computing today
- University of Chicago News: IBM and UChicago demonstration
- IBM: quantum technology page
Dates as listed 2026-10-09. Conferences move, so confirm on the organizer's site before planning.
Frequently asked questions
When will we have a useful quantum computer?
Companies target error corrected systems around 2029 to 2030. Truly broad usefulness may be later. Targets can slip.
Will quantum replace classical computers?
No. The expected model is hybrid, with quantum processors accelerating specific tasks next to classical hardware.
What happens to cryptography by 2035?
NIST's draft plan disallows quantum-vulnerable algorithms after 2035, so systems should migrate before then.
What does this mean for QNT?
It is background for the theme. The token's price is independent of these timelines. Not financial advice.
Is the July 2026 IBM result a useful application?
It is a demonstration of verified logical computation beyond classical simulation on a test task, not a commercial application.
Will 2035 be the end of RSA?
NIST's plan aims to retire quantum-vulnerable algorithms by 2035. The final plan may differ.
How will I know when quantum is useful?
Look for independent verification on problems customers pay for, not only on benchmarks.
Keep reading
- Quantum Catalysts to Watch 2026 to 2030: When the Story Gets Loud
The milestones, deadlines and events that could crank up the quantum narrative through 2030, from IBM's 2026 advantage target to the 2030 cryptography cutoffs. - Quantum Computing Timeline: Key Milestones From 1981 to Today
A short history of quantum computing, from Feynman's 1981 idea and Shor's algorithm to cloud quantum computers and post-quantum standards. - Quantum Computing Use Cases: What Could It Actually Do?
From drug discovery to logistics and cryptography, here are the realistic use cases of quantum computing. - Quantum and Crypto Roadmaps Compared: Bitcoin, Ethereum, Solana and Others
Side by side: how Bitcoin, Ethereum, Solana, Algorand and Aptos are planning for post-quantum security, with dates and status as reported in 2026.
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