Directory
Modalities.
The same tags as the company directory. This is not a ranking of which approach is ahead.
24 organisations
Organisations tagged superconducting. Counts below are each record’s existing scale note, not a new benchmark.
9 organisations
Organisations tagged trapped ion.
6 organisations
Organisations tagged neutral atom.
16 organisations
Organisations tagged photonic, including boson-sampling and optical approaches. Those are not gate-model peers of one another.
13 organisations
Organisations tagged silicon, including spin qubits and silicon photonics where the directory used that tag.
3 organisations
Organisations tagged annealing. Annealing qubits are not gate-model qubits.
1 organisations
Organisations tagged topological. Majorana claims stay contested where the record says so.
30 organisations
Organisations tagged software: compilers, error correction, algorithms, and control stacks. Many also build hardware.
10 organisations
Organisations tagged post-quantum cryptography.
9 organisations
Organisations tagged quantum key distribution.
6 organisations
Organisations tagged control electronics or orchestration.
4 organisations
Organisations tagged cryogenics.
8 organisations
Organisations tagged sensing.
4 organisations
Organisations tagged other, where none of the narrower labels fit.