Quantum Error-Correction Investment Adviser — Deep-Technology Fund

The mandate

The committee’s standing question is which portfolio teams are converting physical-qubit improvement into a defensible path toward useful logical computation rather than selecting demonstrations that flatter a preferred code or modality. Companies report break-even, logical error suppression and decoder throughput under incompatible noise, leakage and post-selection conditions. Investors need a common evidence grammar that respects architecture differences without pretending a single headline ratio predicts commercial advantage.

The adviser contributes four days monthly, attends quarterly Boston investment meetings and joins the scheduled laboratory reviews in New Haven, Toronto, Delft and Oxford. Each month, one portfolio claim is reconstructed from raw assumptions through code, syndrome extraction, decoder, control latency and resource overhead. Urgent written counsel is available within three working days before a financing decision, without becoming embedded scientific management for any company.

The term lasts twelve months with no automatic renewal. A delayed experiment may be reviewed within the existing calendar, but unused days do not roll into portfolio operations. At month ten the committee records whether the evidence framework has transferred to internal diligence leaders; any future engagement requires a new conflict assessment and a distinct investment question rather than continuation by habit.

The adviser has no line authority and carries no executive responsibility for portfolio science, hiring, financing or investment decisions. Company founders own technical roadmaps and the committee controls capital. The adviser may challenge reported conditions, propose comparable evidence and recommend financing gates, but cannot direct experiments, select a code family, negotiate valuation or communicate conclusions to co-investors without committee approval.

Conflicts include quantum hardware, control, cryogenic, decoder, cloud and benchmarking companies; research laboratories; competing funds; and founders seeking capital. Employment, board seats, advisory positions, carried interests, equity, grants and paid peer review must be disclosed. Direct economic exposure to a company under diligence may require recusal even when the adviser’s technical contribution concerns another quantum modality.

Why the board wants this voice

Quantum error-correction claims are unusually sensitive to experimental boundary conditions, resource accounting and choices about discarded data. Internal investors can assess markets, but need independent scientific judgment to interrogate whether suppression persists when the full control loop and overhead are counted. Disciplined challenge prevents both premature dismissal and capital allocation based on incomparable demonstrations.

What you will own

• Decompose logical-performance claims into physical noise, code distance, cycle fidelity, leakage treatment, decoder behaviour and reported exclusions.
• Compare modalities using resource and timing envelopes rather than forcing unlike qubits into a simplistic universal ranking.
• Challenge break-even evidence for post-selection, correlated errors, calibration drift, syndrome history and statistically meaningful run length.
• Examine decoder accuracy, latency, hardware placement, data movement and scaling assumptions inside the closed correction loop.
• Translate roadmap claims into financing gates tied to repeatable error suppression, overhead reduction and independent reproduction.
• Test commercial scenarios for fabrication yield, cryogenic capacity, control complexity, developer access and workload-relevant logical resources.
• Leave the committee a claim ledger, comparison framework, open scientific risks and red flags for subsequent diligence.

Candidate qualifications

• Evaluated quantum error correction, fault tolerance or logical-qubit experiments across more than one hardware modality.
• Can evidence an investment or programme conclusion changed after reconstructing excluded runs, decoder limits or resource overhead.
• Understands stabiliser codes, syndrome extraction, leakage, correlated noise, logical benchmarking and fault-tolerance threshold assumptions.
• Has challenged world-class scientists respectfully without converting legitimate uncertainty into an artificial numerical score.
• Translated scientific evidence into staged capital decisions while separating technical feasibility from market timing.
• Maintained independence across university appointments, grants, startup equity, fund interests and confidential peer review.

Non-negotiables

• Will attend the four specified laboratory reviews and quarterly Boston committee sessions.
• Holds no undisclosed equity, carried interest or advisory role in a quantum company under consideration.
• Accepts no authority to direct experiments, select architectures, commit capital or negotiate financing terms.
• Brings direct logical-qubit evidence judgment beyond general quantum market analysis or enterprise use-case strategy.

1. 49 words maximum. Which reported logical-qubit improvement changed most after you reconstructed its experimental exclusions?
2. 49 words maximum. How would you compare error-correction progress across modalities without inventing false equivalence?
3. 49 words maximum. Which quantum investment, laboratory or equity interest could require your recusal?