The 6×6 step reaches 72 qubits, but the current hardware result is still diagnostic: Fire Opal Fez improves strongly over IBM, while sector survival remains low.
Category: Quantum Computing
Fermi-Hubbard 2D cuprate series, part 5: 4×4 hardware and tensor baselines
The 4×4 run is where exact ED stops being the comfortable reference route and tensor baselines become necessary.
Fermi-Hubbard 2D cuprate series, part 4: time evolution and hardware diagnostics
The 3×3 hardware comparison shows the main diagnostic pattern: Fire Opal is cleaner than direct IBM, but sector survival still falls with time.
Fermi-Hubbard 2D cuprate series, part 3: our 3×3 implementation
The 3×3 run is not meant to be large-scale cuprate physics. It is the exact validation lab that makes the later hardware results interpretable.
Fermi-Hubbard 2D cuprate series, part 2: 2D Hubbard, cuprates, and Google/Willow context
The 2D route is motivated by the one-band Hubbard model as a minimal description of strongly correlated electrons in cuprate-like planes.
Fermi-Hubbard 2D cuprate series, part 1: from 1D to 2D
The second Fermi-Hubbard series starts by carrying the validation discipline from the earlier 1D IBM/TDVP route into a 2D cuprate-oriented ladder.
Fermi-Hubbard op 60 qubits, deel 1: van Hamiltoniaan naar snake-layout en fSWAPs
Een reproduceerbare, kleinere Fermi-Hubbard run laat zien waarom de Q-CTRL aanpak werkt: niet door een generieke compiler, maar door fysica, fermionische mapping, fSWAPs en een hardwarebewuste snake-layout samen te ontwerpen.