Quantum circuits reconstruct a spin model’s heat-capacity pattern
A noisy hardware demonstration recovers broad thermodynamic features using a known energy grid and explicit post-processing.
Quantum Circuits
D-Wave completed its acquisition of Quantum Circuits in January 2026. The acquired business contributes superconducting dual-rail gate-model development alongside D-Wave’s annealing activities. Quantum Circuits should retain a historical and technical identity in the directory, with current ownership linked to D-Wave rather than a separate public ticker.
United States · Research reviewed 20 Oct 2026Initial record: initial research brief recorded.
Review history 1 record
Record dates use UTC and show when an assessment or clarification was saved. Review dates show the evidence check. Earlier records were recovered from QubitWire’s source history; no earlier score movement is inferred.
Initial research brief recorded
Research reviewed 20 Oct 2026
Identity & attribution
- Organization record
- Quantum Circuits
- Recorded role
- Quantum Computing Hardware
- Recorded aliases
- No aliases recorded in this assessment.
- Name and period
- No dated name or ownership transition is recorded here. An alias is a search aid, not evidence of a legal ownership relationship.
- Product scope
- Superconducting dual-rail gate-model development within D-Wave
A company profile may discuss several systems. Capabilities remain attached to the product and conditions named in each source; they do not transfer automatically to related organizations. A verified security relationship has not been attached to this record.
Report an identity issue →Company evidence and analysis
Dated company evidence, its limits and the next test to follow. These notes do not change a QRank score.
Quantum CircuitsSuperconducting dual-rail gate-model development within D-Wave
Sources reviewed 20 Oct 2026. Event dates remain attached to the original evidence.
D-Wave completed its acquisition of Quantum Circuits in January 2026. The acquired business contributes superconducting dual-rail gate-model development alongside D-Wave’s annealing activities. Quantum Circuits should retain a historical and technical identity in the directory, with current ownership linked to D-Wave rather than a separate public ticker.
An acquisition can change who funds and sells a technology without immediately changing the underlying experiment. A useful profile preserves that continuity: the research record remains attributable to the team and device that produced it, while current product responsibility belongs in the ownership field. The buyer’s existing technology should not overwrite the acquired technology’s modality. In this case, annealing and gate-model development require different task definitions, so a single combined qubit total would obscure rather than explain capability. The strongest next evidence is an integrated product or delivery milestone that identifies which architecture is involved and what the customer can access. Readers should also be able to distinguish acquisition completion from the later completion of a product roadmap. That structure makes the directory more accurate after consolidation and avoids creating the impression that two separately investable businesses still exist.
For a reader evaluating Quantum Circuits, the practical question is how the acquired research becomes a supported product within its current parent’s separate technology portfolio. A useful next evidence check is specific: name the gate-model configuration, product owner, access status and acceptance milestone; preserve original experiment attribution. Combining annealing and gate-model qubit counts obscures the tasks and evidence that each architecture supports. These are proposed tests for judging a later update, not claims that the company has already passed them.
Security status: Acquired operating business; parent security only
Ownership context:
- name
- D-Wave Quantum Inc.
- ticker
- QBTS
- exchange
- Nasdaq
- status
- acquisition completed 2026-01-20
- source id
- QI-070
- listing status checked at
- 2026-10-19
- historical exchange at acquisition
- New York Stock Exchange on 2026-01-20
Facts, comparisons and next evidence
At a glance
- label
- Quantum role
- value
- Acquired dual-rail gate-model technology
- label
- Evidence date
- value
- 2026-01-20
- label
- Assessment action
- value
- Evidence enrichment
Dated milestones
- date
- 2026-01-20
- Date scope
- source publication date; unknown if undated
- event
- Acquisition completed
- status
- Published primary evidence; retain the narrower maturity statement
- what it does not establish
- Combining annealing and gate-model qubit counts obscures the tasks and evidence that each architecture supports.
Quantum role
- layer
- Acquired dual-rail gate-model technology
- Question
- How the acquired research becomes a supported product within its current parent’s separate technology portfolio.
Questions for comparison
- Acquired technology versus parent product modality
- Research attribution and current product responsibility
- Announced roadmap versus delivered system
Related approaches
- name
- Alice & Bob
- relationship
- Proposed comparison of relevant dimensions; not a claim of equivalent products or a ranking
- dimensions
- Acquired technology versus parent product modality
- Research attribution and current product responsibility
- Announced roadmap versus delivered system
- name
- Nord Quantique
- relationship
- Proposed comparison of relevant dimensions; not a claim of equivalent products or a ranking
- dimensions
- Acquired technology versus parent product modality
- Research attribution and current product responsibility
- Announced roadmap versus delivered system
Limits and missing evidence
- Combining annealing and gate-model qubit counts obscures the tasks and evidence that each architecture supports.
- Current product/access status
- Integrated gate-model system acceptance
- Updated parent segment and operating disclosures
What would change this assessment
- trigger
- Name the gate-model configuration, product owner, access status and acceptance milestone; preserve original experiment attribution.
- Evidence needed
- Dated primary technical report, product specification or customer/issuer disclosure directly answering the test.
- Test
- Identify the configuration, time boundary and measured outcome; retain unsuccessful attempts and stated limitations.
- Limit
- Combining annealing and gate-model qubit counts obscures the tasks and evidence that each architecture supports.
A starting question
- question
- Does an acquisition erase the acquired company’s technical record?
- answer
- No. Historical results remain attached to their authors and systems. The directory should add the current parent relationship, preserve the technology’s identity and avoid presenting a former standalone business as a separate listed investment.
Original sources and scope
- D-Wave completes Quantum Circuits acquisition ↗Source dated 20 Jan 2026
Acquisition completed January 20, 2026. NYSE was the historical venue at that event; current parent venue is Nasdaq, confirmed in QI-070 following QI-071 transfer announcement.
- D-Wave reports second quarter 2026 results ↗Source dated 6 Aug 2026
H1 revenue, bookings and June 30 RPO have different measurement boundaries; confirms Nasdaq QBTS after transfer.
- D-Wave announces transfer of stock-exchange listing to Nasdaq ↗Source dated 14 Jul 2026
Transfer announcement is prospective as issued; later Q2 release confirms current Nasdaq listing.
What it does. Where it fits.
Superconducting dual-rail gate-model development within D-Wave
Who should look closer
How the acquired research becomes a supported product within its current parent’s separate technology portfolio.
QubitWire’s editorial assessment of practical fit.Company and product information
See the official source for current contact and product access. No open processor access or completed customer acceptance is inferred.
Check the current access route ↗What the sources establish
D-Wave completed its acquisition of Quantum Circuits in January 2026. The acquired business contributes superconducting dual-rail gate-model development alongside D-Wave’s annealing activities. Quantum Circuits should retain a historical and technical identity in the directory, with current ownership linked to D-Wave rather than a separate public ticker.
What remains unresolved
Combining annealing and gate-model qubit counts obscures the tasks and evidence that each architecture supports; Current product/access status; Integrated gate-model system acceptance; Updated parent segment and operating disclosures.
The next question to watch
Name the gate-model configuration, product owner, access status and acceptance milestone; preserve original experiment attribution.
A research question, not a promised milestone.QubitWire coverage
Can a quantum computer calm its own chaos?
An IBM experiment steers deliberately scrambling quantum circuits toward order. Resetting a system and keeping its information safe remain different achievements.
Shallow Quantum Circuits Lost One Route to Advantage
A deterministic classical algorithm can estimate any chosen output probability for fixed-depth, bounded-fan-in circuits in polynomial time, even with arbitrary connectivity. Sampling remains open.
Quantum vs. AI: What IBM’s New Theory Actually Shows
A mathematical comparison reveals advantages for quantum circuits on specific tasks, with the language-model architectures and resource limits carefully defined.
Open research questions
Editorial questions for this profile. No reviewed closure decision has been recorded; unanswered questions do not lower the official score.
Name the gate-model configuration, product owner, access status and acceptance milestone; preserve original experiment attribution.
What evidence would help
A source addressing this question must identify the named system, experiment or deployment, its conditions, measured outcome and remaining limitations. Does the result report errors, circuit depth and a credible classical baseline?
What would resolve it?
An editorial review must explain which part of this question the evidence resolves. A roadmap or an announcement alone does not close it.
No resolved, partial or disputed outcome is asserted without a reviewed transition and its evidence.
Which named system or service can I use under the documented access route?
What evidence would help
Check the current terms for company and product information. Identify the system version, eligibility, restrictions and whether the result used hardware or simulation.
What would resolve it?
Current primary documentation must identify the offering, eligible user and access conditions. An unspecified company-level access claim is insufficient.
No resolved, partial or disputed outcome is asserted without a reviewed transition and its evidence.
Can you access the named system today, and under which plan?
What evidence would help
Provide the source location, relevant product or generation, workload, resource constraints and reported uncertainty. Keep measurements, simulations and announced targets distinct.
What would resolve it?
A source reviewer must map the evidence to this exact scope. Missing disclosure remains unknown; it is not technical failure.
No resolved, partial or disputed outcome is asserted without a reviewed transition and its evidence.
Since your review
Scope: Quantum Circuits. Reading a page never marks its records reviewed.
Keep a baseline and explicitly mark the evidence you have reviewed. This optional journal stays in this browser.
Sources & evidence
- D-Wave completes Quantum Circuits acquisition ↗Company primary announcement · 20 Jan 2026
D-Wave completed its acquisition of Quantum Circuits in January 2026. The acquired business contributes superconducting dual-rail gate-model development alongside D-Wave’s annealing activities. Quantum Circuits should retain a historical and technical identity in the directory, with current ownership linked to D-Wave rather than a separate public ticker.
- D-Wave reports second quarter 2026 results ↗Issuer financial release · 6 Aug 2026
D-Wave completed its acquisition of Quantum Circuits in January 2026. The acquired business contributes superconducting dual-rail gate-model development alongside D-Wave’s annealing activities. Quantum Circuits should retain a historical and technical identity in the directory, with current ownership linked to D-Wave rather than a separate public ticker.
- D-Wave announces transfer of stock-exchange listing to Nasdaq ↗Issuer listing announcement · 14 Jul 2026
D-Wave completed its acquisition of Quantum Circuits in January 2026. The acquired business contributes superconducting dual-rail gate-model development alongside D-Wave’s annealing activities. Quantum Circuits should retain a historical and technical identity in the directory, with current ownership linked to D-Wave rather than a separate public ticker.
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