What’s new at IBM Quantum: Q3 2026
Error-correction tools, Nighthawk r2 access and the latest Qiskit updates.
Publisher report
AN INDEPENDENT QUANTUM OBSERVATORYFIELD NOTES / 8 OCT 2026
TRACKING THE NEXT COMPUTING ERAThe quantum
IBM CRYOSTAT / GRAHAM CARLOW The quantum
future. In focus.
A front-row seat to the machines, discoveries,
and decisions bringing quantum closer.
THE STATE OF THE FIELDSELECTED INDICATORS / NOT A LEADERBOARD
LOGICAL COMPUTING
48logical qubitsHelios · error-corrected demonstration
ERROR SUPPRESSION
4.28× improvementHelix · relative to physical Clifford error
CIRCUIT CAPACITY
7,500+ gatesIBM Nighthawk r2 · reported benchmark
CRYPTOGRAPHIC READINESS
No proven breakProduction wallet-key recovery
The Quantum Wire is open.
Follow 31 reports across hardware, research, and crypto security. Search, filter, and build your reading list.
THE PERFORMANCE CURVE
IBM · 2025—2028From promise to performance.
7,500+
circuit gates · 2026Nighthawk r2 / Reported demonstration
REPORTEDDashed line = targets; filled point = reported resultSeries sources
2025 was an announced goal; 2027–28 are roadmap targets. The 2026 benchmark uses error mitigation. This is not a measured annual growth rate.
01 / THE SIGNAL
The latest from the frontier.
Announcements, research, and the developments worth following.
Checking public sources…Official sources + reviewed archive · Open full feed ↗
IonQ advances to DARPA’s final quantum benchmarking stage
Stage C brings independent validation of proposed systems. It is not a demonstrated utility-scale result.
Publisher report
D-Wave opens a beta for its gate-model simulator
Selected research and commercial users can test error-aware programming based on D-Wave's dual-rail gate-model architecture. The beta provides simulator access while the corresponding gate-model hardware remains forthcoming.
Simulator release
Helix reports better-than-physical logical computation
Quantinuum reports a 4.28× logical improvement over physical Clifford error, without post-selection.
Publisher report
Microsoft opens a quantum research center in Maryland
The center provides Majorana 2 hardware for independent DARPA testing.
Publisher report
02 / THE MACHINES
Meet the machines.
Selected systems and research platforms. Every number needs context.
Physical qubits, logical qubits and trapped-atom arrays measure different things. These cards are not a leaderboard.
03 / THE TRAJECTORY
A record of real progress.
A selected, source-linked record of meaningful progress.
202628 Sept
QuantinuumCompany report
Helix reports improved logical computation
Quantinuum reports a logical compute error rate below its physical Clifford baseline without postselection. Its separate 64-qubit result uses error detection; it is not the same measurement as 48 error-corrected logical qubits.
2.8 × 10⁻⁴ logical compute error202631 Aug
IBMCompany report
Nighthawk r2 increases circuit throughput
IBM reports accurate observable estimation on circuits exceeding 7,500 gates and throughput above 100,000 circuits per second. The processor has 120 programmable qubits; its 458 total quantum elements also include couplers and reset elements.
7,500+ gates · 100,000+ circuits/s202622 Jul
Google Quantum AIPublished research
Quantum error correction learns to counter drift
A Nature study demonstrates reinforcement learning that uses error-detection events to adjust Willow control parameters during quantum memory operation. This addresses calibration drift; scaling studies on larger systems remain simulations.
Adaptive control during error correction202627 Apr
Solana FoundationCompany report
Solana outlines its post-quantum migration preparation
The Foundation reports initial Falcon implementations from Anza and Firedancer and describes a future wallet migration path. This documents preparation and research, not universal post-quantum protection already active for Solana accounts.
Falcon prototypes · migration planning202630 Mar
Google Quantum AI / collaboratorsResource estimate
New resource estimates for elliptic-curve attacks
Theoretical circuits could solve 256-bit elliptic-curve discrete logarithms with fewer than 500,000 physical superconducting qubits under specified error and connectivity assumptions. This is not demonstrated hardware. April 15 revision patches proof-system software.
<500,000 physical qubits, modeled04 / WALLET WATCH
When could quantum break your wallet?
The cryptographic risk, the evidence, and the race to migrate. Solana first.
WALLET SIGNATURES / PUBLIC-KEY EXPOSURE
SOLANA THREAT MODELThe address is public.
Solana account model
The address is public.
The signing power isn’t.
For an ordinary keypair wallet, knowing its Solana address reveals the public key. A future capable quantum attacker would not need to wait for its first outgoing transaction.
SIGNATURE SCHEMEEd25519
TRACKED EVIDENCE · OCTOBER 2026
No wallet-scale break demonstrated here.
The tracked results do not demonstrate recovery of a production wallet key. A hardware milestone or a theoretical attack estimate is not a completed attack.
Public keyMissing capabilityForged signature
*A cryptographically relevant quantum computer, with sufficient error-corrected compute. Assumes vulnerable authorization remains accepted.PDAs have no private key. Their security depends on the controlling program, its authorization rules and any upgrade or recovery keys. A PDA is not automatically a post-quantum wallet. Source ↗
Falcon implementations under evaluation
In April 2026, the Solana Foundation reported initial Falcon implementations from Anza and Firedancer and a plan to migrate wallets if needed. This is preparation, not network-wide post-quantum activation.
<500,000physical qubits
Google’s 2026 model for secp256k1, assuming superconducting hardware, 10⁻³ physical error rates and planar connectivity. Modeled runtime: minutes.
<1,200 logical qubits+<90M Toffoli gates
This is one modeled circuit option, not an available machine. It is not a measured Ed25519/Solana threshold.
Read the resource estimate2026EVIDENCE
Estimates improve; migration work continues
Published attack models and prototype defenses. No attack date follows from these results.
2029TARGET
Google’s post-quantum migration target
An internal planning deadline, not a prediction that crypto breaks in 2029.
?UNKNOWN
Source: Google’s timeline and threat modelFirst practical wallet-key attack
Arrival date unknown. Requires a capable machine, an exposed key, and authorization that has not migrated.
Would a hardware wallet stop a quantum attack?+
Offline key storage protects against many conventional threats. It does not change Ed25519 or secp256k1: an attacker who can derive signing power from the public key would not need the physical device. This is an inference from the public-key threat model above.
Does a “post-quantum token” protect the coins in my wallet?+
A quantum-resistant launch signature can protect proof of origin. Protecting holdings requires the spending authorization itself to enforce post-quantum checks, with no vulnerable alternate authorization path. A recorded signature fingerprint alone does not establish that protection; any specific implementation needs verification.
Does this mean quantum will destroy Solana?+
That outcome is not inevitable. The relevant race is between cryptographically capable hardware and migration of the network, wallets and applications. Solana has published preparation work. A future key-recovery capability could threaten unmigrated authorities without automatically destroying every account, program or asset.
Solana’s published preparation work ↗Educational threat models, not a wallet audit. No wallet connection is needed. Exposed public keys are not evidence of present-day theft; reviewed metrics are not a price forecast.
OUR APPROACH
Evidence over excitement.
Quantum Watcher is an independent, curated observatory. It is not affiliated with the companies tracked here.
Follow the source
Every milestone links to a research paper or the organization’s own report. Provider claims are labeled.
Keep the definitions
Hardware scale, logical performance, projections and resource estimates stay separate.
Make freshness visible
Nine automatic source connections refresh on demand with a 15-minute cache. The Wire shows source health; reviewed metrics remain dated 8 Oct 2026.
Show the limits
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