Question 1

What is quantumintel.tech?

Accepted Answer

quantumintel.tech is the leading intelligence platform for the quantum computing industry — a Bloomberg Terminal-style dashboard covering funding rounds, processor specifications, error correction milestones, cloud platform comparisons, and breaking news across every major quantum computing company globally. Every figure ties back to a dated primary source — company announcements, arXiv publications, funding filings, and government program awards.

Question 2

Which quantum computing companies does quantumintel.tech track?

Accepted Answer

quantumintel.tech tracks all major quantum computing companies including IBM, Google Quantum AI, Quantinuum (Honeywell), IonQ, Rigetti Computing, PsiQuantum, Xanadu, D-Wave, Pasqal, Atom Computing, QuEra, Infleqtion, Alice & Bob, Origin Quantum, Quantum Machines, and dozens more across the US, Europe, China, Canada, and Australia.

Question 3

What are the leading quantum computing approaches in 2026?

Accepted Answer

The leading quantum computing modalities in 2026 include superconducting qubits (IBM, Google, Rigetti), trapped ions (Quantinuum, IonQ), photonic quantum computing (PsiQuantum, Xanadu), neutral atoms (Pasqal, Atom Computing, QuEra), and silicon spin qubits (Intel, Silicon Quantum Computing). Each approach has distinct advantages in qubit count, fidelity, coherence time, and scalability.

Question 4

How much has been invested in quantum computing?

Accepted Answer

The quantum computing sector has attracted over $40 billion in combined government and private investment through early 2026. Major private rounds include PsiQuantum ($600M), IonQ ($584M total via SPAC), Rigetti ($291M), and Pasqal ($100M+). Government programs like the US National Quantum Initiative, EU Quantum Flagship, and China's quantum megaprojects contribute billions more.

Question 5

What is quantum error correction?

Accepted Answer

Quantum error correction (QEC) is the process of protecting quantum information from errors caused by decoherence and noise. By encoding logical qubits across multiple physical qubits using error-correcting codes (such as the surface code or color code), QEC enables fault-tolerant quantum computing. In 2025-2026, both Google and Quantinuum demonstrated below-threshold error correction, a key milestone toward practical quantum advantage.

Question 6

What is quantum volume?

Accepted Answer

Quantum Volume (QV) is a hardware-agnostic metric introduced by IBM that measures the overall capability of a quantum computer, accounting for qubit count, connectivity, gate fidelity, and circuit depth. Higher QV indicates a more capable system. As of 2026, Quantinuum holds the record with QV > 2^20, while IBM and IonQ have also achieved significant QV milestones.

Question 7

How often is data on quantumintel.tech updated?

Accepted Answer

quantumintel.tech's newsfeed aggregates primary sources — company announcements, arXiv publications, funding filings, and government program awards — and updates multiple times daily. The processor database, funding tracker, and company directory are updated regularly as new data becomes available.

Question 8

What is the difference between physical qubits and logical qubits?

Accepted Answer

Physical qubits are the actual quantum bits implemented in hardware (e.g., superconducting circuits, trapped ions). Logical qubits are error-corrected qubits formed by encoding quantum information across many physical qubits. A single logical qubit might require hundreds or thousands of physical qubits depending on the error rate and code used. The ratio of physical-to-logical qubits is a key metric for fault-tolerant quantum computing progress.

5,627 physical qubits is the largest quantum system fielded — the most logical qubits any commercial machine claims is 48

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The field, by qubit modality

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