Testing the ultrametric framework through experimental

The gap

Evidence profile

Sourced from the stated research gap and future-work section and limitations section of the source papers, classified as general, drawn from work published between 2017 and 2026, spanning 7 journals. Those papers have been cited 1,128 times in total.

Supporting evidence — 8 representative gaps

• A digitally controlled silicon quantum processing unit (2026) · Nature · cited 2× · doi

  The development of commercially viable quantum computers requires efficient fabrication of qubit chips and control-signal generation and delivery systems. The disconnect between qubit chip development and control-signal hardware must be resolved. The system must be scalable and compatible with advanced semiconductor manufacturing.

  generalstated research gapevidence 5/5
  Keywords: development commercially viable quantum computers requires efficient fabrication
• SPOOKY CHIPS: THE STRANGE, ENTANGLED HEART OF THE NEXT COMPUTING REVOLUTION (2026) · Journal of Smart Computing and Quantum Technologies · doi

  The gap between physical and logical qubit requirements represents a formidable challenge. Reducing this overhead through improved qubit quality or more efficient error-correcting codes is a priority research direction. The study identifies decoherence and high error rates as fundamental barriers to achieving fault tolerance.

  generalstated research gapevidence 5/5
  Keywords: gap between physical logical qubit requirements represents formidable
• Dynamical codes for hardware with noisy readouts (2026) · Quantum · doi

  The authors suggest that future research should focus on designing fault-tolerant schemes for quantum computing beyond quantum memories. The paper notes that time vortex defects may further reduce teraquop volumes. The authors suggest that ideas such as those presented in the paper can be used to take steps towards designing fault-tolerant schemes.

  generalfuture-work sectionevidence 5/5
  Keywords: authors suggest future research focus designing fault-tolerant schemes
• ULTRAMETRIC QUANTUM COMPUTATION: An MVP Program for Passive Geometric Fault Tolerance (2026) · Zenodo (CERN European Organization for Nuclear Research) · doi

  Testing the ultrametric framework through experimental implementation. Exploring the applications of passive geometric fault tolerance in quantum computing. Developing more efficient quantum computing architectures based on the ultrametric framework.

  generalfuture-work sectionevidence 5/5
  Keywords: testing ultrametric framework through experimental implementation exploring applications
• Quantum error correction below the surface code threshold (2024) · Nature · cited 616× · doi

  The paper does not address the scalability of the approach to larger numbers of qubits. The error-corrected processors are still in the early stages of development. The authors acknowledge the presence of excess correlations in the device, which may impact performance.

  generallimitations sectionevidence 5/5
  Keywords: paper does address scalability approach larger numbers qubits
• Building logical qubits in a superconducting quantum computing system (2017) · npj Quantum Information · cited 510× · doi

  The paper identifies the gap in demonstrating a quantum memory, in which a system of interacting qubits stores an encoded logical qubit state longer than the incorporated parts. The paper identifies the gap in developing scalable fault-tolerant quantum computers. The paper identifies the gap in understanding the limitations of current quantum computing systems.

  generalstated research gapevidence 5/5
  Keywords: paper identifies gap demonstrating quantum memory system interacting
• Superconducting qubits in the millions: The potential and limitations of modularity (2026) · Physical Review Applied · doi

  The paper identifies a gap in the accurate estimates of the tangible scale of future FTQCs, based on transparent assumptions. The paper identifies a need for a fault-tolerant architecture that can estimate the physical resources required to execute specific quantum algorithms.

  generalstated research gapevidence 5/5
  Keywords: paper identifies gap accurate estimates tangible scale future
• A Taxonomy of Real Faults for Hybrid Quantum-Classical Software Architectures (2026) · ACM Transactions on Software Engineering and Methodology · doi

  The lack of a comprehensive taxonomy of faults in Hybrid Quantum-Classical architectures - The need for quality-assurance methods tailored to the specific faults of Hybrid Quantum-Classical architectures - The gap in the study of Hybrid Quantum-Classical architectures, with prior work focusing on specific domains

  generalstated research gapevidence 5/5
  Keywords: lack comprehensive taxonomy faults hybrid quantum-classical architectures need

Questions about this gap