A reproducible Q80 Operator Loschmidt Echo study, from circuit construction and hardware execution to tensor-network limits and information scrambling.
Month: July 2026
Fermi-Hubbard 2D cuprate series, part 6: 6×6 tensor baseline, IBM diagnostics, and Fire Opal Fez
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.
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.
Van Hubbard 1D naar de Hubbard 2D-serie
Nederlands | English | Hubbard 1D-project | Verder met Hubbard 2D Update van de reeks: deze pagina was oorspronkelijk de 2D-outlook van de Hubbard 1D-reeks. Het 2D-werk heeft inmiddels een eigen, uitgebreidere…
Fermi-Hubbard op een quantumcomputer, deel 8: charge- en spinheatmaps lezen
Nederlands | English | Project page | Previous | Next Reikwijdte van dit deel: dit deel legt uit hoe je de charge- en spinheatmaps leest. Deel 9 gebruikt die observabelen voor een…
Fermi-Hubbard op een quantumcomputer, deel 7: Majorana propagation als laptop-tegenstander
Nederlands | English | Project page | Previous | Next Een goede quantum-advantage discussie heeft een sterke klassieke tegenstander nodig. Voor deze reeks is tensor-network TDVP de standaardtegenstander, maar er is nog…