Logical Processor on Reconfigurable Neutral Atom Arrays
Logical qubit computation (surface code, color code, [[8,3,2]] blocks) · Other · 280 qubits · Custom QuEra / Harvard control stack
Benchmark of an early error-corrected logical processor running on reconfigurable neutral atom arrays. The Harvard/MIT/QuEra team encoded up to 48 logical qubits on 280 physical atoms and demonstrated fault-tolerant primitives — GHZ state preparation, entanglement teleportation and sampling circuits with up to 228 logical two-qubit gates. Surface-code distances d=3 through d=7 were tested, along with 40-qubit color codes and three-dimensional [[8,3,2]] blocks. Logical-level control and a zoned atom-array architecture let encoded operations outperform bare physical qubits on the same device.
Benchmark of an early error-corrected logical processor running on reconfigurable neutral atom arrays. The Harvard/MIT/QuEra team encoded up to 48 logical qubits on 280 physical atoms and demonstrated fault-tolerant primitives — GHZ state preparation, entanglement teleportation and sampling circuits with up to 228 logical two-qubit gates. Surface-code distances d=3 through d=7 were tested, along with 40-qubit color codes and three-dimensional [[8,3,2]] blocks. Logical-level control and a zoned atom-array architecture let encoded operations outperform bare physical qubits on the same device.
Largest-scale demonstration at the time that logical encoding on a reprogrammable device beat physical-qubit performance on algorithmic tasks — a key milestone for fault-tolerant, early error-corrected quantum computation.
Neutral atom array (Harvard/QuEra, up to 280 rubidium atoms)
Custom QuEra / Harvard control stack