Vietnam’s planned photonic quantum computer is also an education project
Quandela and Quanova have announced a deployment at Quang Trung University. Delivery and practical access remain the milestones to watch.
Quandela
Supplies photonic computing systems, cloud access and the Perceval development framework.
France · Research reviewed 14 Oct 2026Since the previous record: 1 evidence source added · axis ratings unchanged.
Review history 3 records
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.
1 evidence source added · axis ratings unchanged
Assessment reviewed 23 Sept 2026 · Research reviewed 14 Oct 2026What changed
- What remains uncertain
- Previously
Photon counts and encoded gate qubits are not interchangeable. Earlier Ascella benchmarks do not automatically describe Lucy or Belenos; loss and postselection remain material.
- Now
Photon counts and encoded gate qubits are not interchangeable. Earlier Ascella benchmarks do not automatically describe Lucy or Belenos; loss and postselection remain material. The October 13 NVQLink announcement previews a simulated-QPU exhibition at GTC Berlin on October 20–22; it does not supply a new physical-QPU benchmark or measured quantum advantage.
- The next evidence question
- Previously
Reproducible external application results with full sampling and error budgets.
- Now
Reproducible external application results with full sampling and error budgets, plus end-to-end physical-QPU integration measurements with latency and classical baselines disclosed.
- Evidence sources
- Sources added (1)
Initial assessment added
Assessment reviewed 23 Sept 2026 · Research reviewed 23 Sept 2026What changed
- Assessment
- Previously
None recorded
- Now
Initial four-axis assessment
Initial research brief recorded
Research reviewed 23 Sept 2026
Identity & attribution
- Organization record
- Quandela
- Recorded role
- Single-photon processors and cloud access
- 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
- Single-photon processors built around quantum-dot light sources and programmable optical circuits.
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.
QuandelaPhotonic quantum computers and software
Sources reviewed 20 Oct 2026. Event dates remain attached to the original evidence.
Quandela’s current company material presents photonic quantum systems and the Perceval software ecosystem. This record is a profile enrichment rather than a newly dated product announcement. It should distinguish the company’s accessible tools, delivered configurations and future scaling claims instead of treating them as one capability.
Photonic platforms give readers an opportunity to connect abstract quantum behavior to an optical experiment: prepare inputs, transform them in a circuit and detect outputs. That picture is simple enough to explain but still demands careful accounting. A larger mode count does not directly state how many reliable logical operations a user can perform. The customer needs to know the input states, accepted events, optical loss and the classical processing needed to interpret results. Software access is another important layer, because a well-documented workflow can make a limited machine genuinely useful for research and education. Quandela’s profile should show those strengths at their actual scope. The most informative next update would attach a specific hardware configuration to reproducible examples and external usage evidence, allowing readers to compare the complete user journey rather than a headline size number.
For a reader evaluating Quandela, the practical question is how a user moves from a software model to an accessible physical system with a documented task budget. A useful next evidence check is specific: identify system configuration, access terms, calibration evidence and end-to-end task results with photon losses included. Software availability and hardware availability are separate states, while loss can dominate larger experiments. These are proposed tests for judging a later update, not claims that the company has already passed them.
Security status: No public security verified in reviewed material; directory/watch profile only
Facts, comparisons and next evidence
At a glance
- label
- Quantum role
- value
- Photonic systems and software
- label
- Evidence date
- value
- Undated source; checked 2026-10-19
- label
- Assessment action
- value
- Evidence enrichment
Dated milestones
- Date scope
- source publication date; unknown if undated
- event
- Current product scope reviewed
- status
- Published primary evidence; retain the narrower maturity statement
- what it does not establish
- Software availability and hardware availability are separate states, while loss can dominate larger experiments.
Quantum role
- layer
- Photonic systems and software
- Question
- How a user moves from a software model to an accessible physical system with a documented task budget.
Questions for comparison
- Input-state and mode configuration
- Loss/postselection/resource accounting
- Reproducible software-to-hardware examples
Related approaches
- name
- ORCA Computing
- relationship
- Proposed comparison of relevant dimensions; not a claim of equivalent products or a ranking
- dimensions
- Input-state and mode configuration
- Loss/postselection/resource accounting
- Reproducible software-to-hardware examples
- name
- QuiX Quantum
- relationship
- Proposed comparison of relevant dimensions; not a claim of equivalent products or a ranking
- dimensions
- Input-state and mode configuration
- Loss/postselection/resource accounting
- Reproducible software-to-hardware examples
Limits and missing evidence
- Software availability and hardware availability are separate states, while loss can dominate larger experiments.
- Fresh dated product evidence before news positioning
- Independent customer acceptance
- Comparable complete-workflow performance data
What would change this assessment
- trigger
- Identify system configuration, access terms, calibration evidence and end-to-end task results with photon losses included.
- 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
- Software availability and hardware availability are separate states, while loss can dominate larger experiments.
A starting question
- question
- Is an optical mode the same as a logical qubit?
- answer
- No. A mode is a degree of freedom used by an optical system. How modes encode information depends on the architecture. A profile should report the native configuration and explain its encoding before making comparisons.
Original sources and scope
- About Quandela ↗
Company profile information, without a new event date.
Product access and the Vietnam project are different stages
Quandela offers photonic computing systems, cloud access and developer tools including Perceval. Its 22 October 2026 announcement says Quanova selected MosaiQ for a planned education and research deployment at Quang Trung University.
What this establishes—and its limits
The partnership and deployment project were announced on 21 October. The source describes future deployment; it does not establish an installed and accepted system in Vietnam.
Evidence to look for next
Watch for commissioning, access conditions and supported operations for the specific product generation.
Sources reviewed . This review does not create or change a QRank assessment.
- Quandela: products and services Company website · Publication date not stated
Hardware, cloud access and developer tools.
- Quandela: Vietnam deployment project Company announcement · Source published
Planned deployment; project announced 21 October.
What it does. Where it fits.
Single-photon processors built around quantum-dot light sources and programmable optical circuits.
Who should look closer
Researchers experimenting with photonic circuits and hybrid computing workflows.
QubitWire’s editorial assessment of practical fit.Cloud and institutional access
Belenos is available through OVHcloud; CEA links research access to its Lucy system.
Check the current access route ↗What the sources establish
CEA confirms Lucy, a 12-photon processor, was installed in October 2025 and inaugurated in April 2026, with Perceval and Merlin integrated through Qaptiva.
What remains unresolved
Photon counts and encoded gate qubits are not interchangeable. Earlier Ascella benchmarks do not automatically describe Lucy or Belenos; loss and postselection remain material. The October 13 NVQLink announcement previews a simulated-QPU exhibition at GTC Berlin on October 20–22; it does not supply a new physical-QPU benchmark or measured quantum advantage.
The next question to watch
Reproducible external application results with full sampling and error budgets, plus end-to-end physical-QPU integration measurements with latency and classical baselines disclosed.
A research question, not a promised milestone.QubitWire coverage
FPT and Quandela outline joint quantum work in Vietnam
Their memorandum covers research, integration and workforce development.
Can a quantum computer help choose the next drug experiment?
Quandela and KRIBB will combine photonic quantum computing, AI and biology. The useful test is whether the work helps scientists choose what to test next.
Open research questions
Editorial questions for this profile. No reviewed closure decision has been recorded; unanswered questions do not lower the official score.
Reproducible external application results with full sampling and error budgets, plus end-to-end physical-QPU integration measurements with latency and classical baselines disclosed.
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 cloud and institutional access. 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: Quandela. 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.
From claim to assessment
These are the existing assessment claims and their recorded criterion links. A source link is not an independent replication. New research does not change these published ratings automatically.
| Recorded claim & source | Assessment linkage | Provenance & limits |
|---|---|---|
| Source 1 Company-led peer-reviewed Ascella experiments include small gate circuits, six-photon sampling and application demonstrations. A versatile single-photon-based quantum computing platform ↗Exact source locationNo page, figure or section locator is recorded. Open the source and check the claim in its original context. | Capability Ascella demonstrates gates and application experiments on operating hardware; the evidence is company-led and specific to that processor. Use in practice Published chemistry and classification demonstrations are specific uses; the reviewed sources do not establish repeated independent application outcomes. | Organization-originated source Source type: paper. Independent replication, experiment date and source-version fingerprint are not separately recorded. Product and measurement scope: read the named system and conditions in this claim. No normalized product revision is assigned. Review recorded 23 Sept 2026. Research brief reviewed 14 Oct 2026. These dates do not establish publication or experiment dates. Report an issue with this claim → |
| Source 2 CEA confirms Lucy installation, inauguration, access route and Perceval/Merlin integration with Qaptiva. Quantum computing at TGCC ↗Exact source locationNo page, figure or section locator is recorded. Open the source and check the claim in its original context. | Delivery Named institutional installation and cloud availability are supported by current software and operational access resources. Integration Reusable Perceval software plus CEA-confirmed Qaptiva integration support maintained interoperability. | External source; collaborators may be involved Source type: institutional. Independent replication, experiment date and source-version fingerprint are not separately recorded. Product and measurement scope: read the named system and conditions in this claim. No normalized product revision is assigned. Review recorded 23 Sept 2026. Research brief reviewed 14 Oct 2026. These dates do not establish publication or experiment dates. Report an issue with this claim → |
| Source 3 The cloud operator confirms Belenos availability through its quantum platform. OVHcloud adds Quandela Belenos ↗Exact source locationNo page, figure or section locator is recorded. Open the source and check the claim in its original context. | Delivery Named institutional installation and cloud availability are supported by current software and operational access resources. | External source; collaborators may be involved Source type: partner. Independent replication, experiment date and source-version fingerprint are not separately recorded. Product and measurement scope: read the named system and conditions in this claim. No normalized product revision is assigned. Review recorded 23 Sept 2026. Research brief reviewed 14 Oct 2026. These dates do not establish publication or experiment dates. Report an issue with this claim → |
| Source 4 Maintained Python package provides cloud QPU execution, installation instructions, tests and interoperability bridges. Perceval source and documentation ↗Exact source locationNo page, figure or section locator is recorded. Open the source and check the claim in its original context. | Delivery Named institutional installation and cloud availability are supported by current software and operational access resources. Integration Reusable Perceval software plus CEA-confirmed Qaptiva integration support maintained interoperability. | Organization-originated source Source type: technical. Independent replication, experiment date and source-version fingerprint are not separately recorded. Product and measurement scope: read the named system and conditions in this claim. No normalized product revision is assigned. Review recorded 23 Sept 2026. Research brief reviewed 14 Oct 2026. These dates do not establish publication or experiment dates. Report an issue with this claim → |
Revision and evidence-family boundaries
Record reference: 8ce7106ceb19bf537eebd019895548aa13cd556c24291595ea4e02cabb003bcc. Read prior recorded revisions.
Repeated coverage can describe the same experiment. The assessment does not contain a reviewed claim-family grouping, so the number of links is never shown as a replication count. Source pages can change independently of this saved assessment; the original source text is not archived here.
Sources & evidence
- A versatile single-photon-based quantum computing platform ↗Organization-originated source · 26 Mar 2024
Company-led peer-reviewed Ascella experiments include small gate circuits, six-photon sampling and application demonstrations.
- Quantum computing at TGCC ↗External source (may be a collaborator) · Publication date not stated
CEA confirms Lucy installation, inauguration, access route and Perceval/Merlin integration with Qaptiva.
- OVHcloud adds Quandela Belenos ↗External source (may be a collaborator) · 17 Apr 2026
The cloud operator confirms Belenos availability through its quantum platform.
- Perceval source and documentation ↗Organization-originated source · Publication date not stated
Maintained Python package provides cloud QPU execution, installation instructions, tests and interoperability bridges.
- Quandela GPU–QPU integration announcement ↗Company technical announcement · 13 Oct 2026
Plans a GTC Berlin demonstrator for October 20–22 with DGX Spark and an FPGA controller linked through NVQLink. The exhibition QPU is simulated; earlier physical-QPU validation is a separate supplier-reported result.
- About Quandela ↗Company primary announcement · Publication date not stated
Quandela’s current company material presents photonic quantum systems and the Perceval software ecosystem. This record is a profile enrichment rather than a newly dated product announcement. It should distinguish the company’s accessible tools, delivered configurations and future scaling claims instead of treating them as one capability.
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