our work on a full state vector simulator based on Pauli rotations: arxiv.org/pdf/2504.17881 we observe a speed-up over other high-performance libraries by orders of magnitude! (Marek deserves all credit) Could be useful for benchmarking and testing of heuristic algorithms, source code is available

A molecular model with N orbitals requires N qubits when mapped to a digital quantum computer - this becomes expensive for large active spaces. Our publication shows how to include more orbitals perturbatively without more qubits journals.aps.org/prresearch/a... #quantumcomputing #compchem #physics

Quantum chemical systems that are challenging for classical methods and therefore have been presented as targets for quantum computers (for example the poster child FeMoco) are getting in reach of DMRG methods: pubs.acs.org/doi/10.1021/... #compchemsky #quantumcomputing #physics 🧪

Recent upload on the overlap issue for computing molecular ground state energies on a quantum computer: arxiv.org/abs/2409.08910 The use of orbital-entropies definitely brings more insight into the debate (remember www.nature.com/articles/s41...) #quantumcomputing #physics #compchem #quantum 🧪⚛️

Wir haben vor wenigen Tagen die 1,5-Grad-Grenze überschritten. Im Februar 2024. Uns allen muss klar sein, dass das kein Weckruf mehr ist, keine theoretische Gefahr. Für Freiheit, Sicherheit und Wohlstand von uns allen ist das, was diese Grafik zeigt, eine akute Existenzbedrohung.