IBM Quantum System Two at Amaravati Quantum Valley Tech Park

Raveh Neeman

doi:10.5281/zenodo.22674814

IBM with TCS and the Government of Andhra Pradesh

IBM Quantum System Two at Amaravati Quantum Valley Tech Park

IBM with TCS and the Government of Andhra Pradesh · superconducting circuits · ANNOUNCED (building due 15 Oct 2026; IBM installation to follow; inauguration planned Jan 2027) (May 2025) · 156 physical qubits · access: n/a (not yet commissioned)

architecture: Transmon lattice with tunable couplers · Open on the map

Register profile — the machine's variant of its architecture

qubit type: transmon (Heron family)

gate mechanism: tunable-coupler CZ (Heron family)

connectivity: heavy-hex (Heron family)

control: room-temperature RF (Heron family)

control placement: room-temp

readout: dispersive (Heron family)

gate evidence: no published figure

flags: conflicting claims, schedule risk, a target, not a device

Technologies by layer — the machine's cell per layer

1 Qubit carrier	Transmon · primary ◌ 🔎 transmon qubits of the announced 156-qubit Heron processor (not yet installed)
2 Encoding	Bare physical qubit (no encoding) · primary ◌ 🔎 bare transmon two-level subspace (family-determined)
3 Gate mechanism	Tunable-coupler CZ / iSWAP · primary ◌ 🔎 tunable-coupler CZ of the Heron family assumed for the announced system
4 Connectivity / transport	Static nearest-neighbour lattice · primary ◌ 🔎 heavy-hex nearest-neighbour lattice of the Heron family assumed
5 Control	Room-temperature electronics + per-qubit coax/flex · primary ◌ 🔎 room-temperature RF control of an IBM Quantum System Two assumed
6 Readout	Dispersive microwave readout (+TWPA, Purcell) · primary ◌ 🔎 dispersive readout (family-determined)
7 Code	— none — nothing in this layer ◌ 🔎 no QEC code announced for the site
8 Decoder	— none — nothing in this layer ◌ 🔎 no decoder; no QEC announced
9 Interconnect	— none — nothing in this layer ◌ 🔎 one Heron processor announced; no inter-module link
10 Manufacturing	Superconducting-qubit lithography (Al/AlOx/Al junctions, Nb wiring, 300 mm) · primary ◌ 🔎 IBM superconducting-qubit fabrication (family-determined)

evidence: ✅ 0 / 10