QuEra, a quantum computing startup, has unveiled an ambitious plan to deliver a system with over 10,000 physical qubits and 256 highly reliable error-corrected logical qubits by 2028, followed by an even larger machine with over 1,000 logical qubits in 2029.

  • QuEra plans 10,000+ qubits with high error correction by 2028
  • Follow-up system in 2029 aims for over 1,000 logical qubits
  • Key challenges include hardware error rate reduction and system scaling

What happened

QuEra announced a detailed roadmap targeting a quantum computer with more than 10,000 physical qubits by 2028, designed to deliver 256 error-corrected logical qubits. This marks a significant advance over its current hardware, which has only about 260 qubits that still suffer from notable error rates.

The company will not release incremental hardware updates before this milestone. Instead, it plans a leap directly to this powerful machine hosted by Amazon on the cloud, followed by a successor in 2029 with roughly double the qubit count and over 1,000 logical qubits, promising even higher operational fidelity.

Why it matters

Achieving thousands of error-corrected logical qubits with low error rates is considered a breakthrough that can enable practical, large-scale quantum computations unavailable with current noisy intermediate-scale quantum (NISQ) devices. QuEra’s plan to deliver this on neutral atom technology emphasizes scalability by increasing laser array capacity to trap and manipulate many more atoms.

However, the challenge lies in drastically reducing the error rates of individual physical qubits, which is critical for effective error correction and reliable logical qubit operation. Success here would mark a leap forward for quantum computing and potentially accelerate real-world application development.

What to watch next

Monitoring QuEra’s progress in bringing down physical qubit error rates will be key, especially as the company needs to halve the number of hardware qubits per logical qubit within a year while improving performance significantly. The timeline is ambitious given the technical hurdles involved.

Also, attention will focus on QuEra’s ability to solve classical engineering challenges associated with control electronics, real-time error correction, and software compilers that enable user-friendly access to the quantum system's capabilities. The company's follow-through and transparency on these fronts will determine how seriously its roadmap is regarded.

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