Jakob Günther
@jakg.bsky.social
Spends time thinking about quantum computing and molecules. PhD-candidate. Also interested in fields of practical relevance, like climate science.
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
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
arxiv.org
April 28, 2025 at 1:43 PM
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
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
journals.aps.org/prresearch/a... #quantumcomputing #compchem #physics
More quantum chemistry with fewer qubits
Quantum computation is one of the most promising new paradigms for the simulation of physical systems composed of electrons and atomic nuclei, with applications in chemistry, solid-state physics, mate...
journals.aps.org
October 11, 2024 at 3:00 PM
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
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 🧪
pubs.acs.org/doi/10.1021/...
#compchemsky #quantumcomputing #physics 🧪
Parallel Implementation of the Density Matrix Renormalization Group Method Achieving a Quarter petaFLOPS Performance on a Single DGX-H100 GPU Node
We report cutting edge performance results on a single node hybrid CPU-multi-GPU implementation of the spin adapted ab initio Density Matrix Renormalization Group (DMRG) method on current state-of-the...
pubs.acs.org
September 21, 2024 at 6:10 PM
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 🧪
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 🧪⚛️
The use of orbital-entropies definitely brings more insight into the debate (remember www.nature.com/articles/s41...)
#quantumcomputing #physics #compchem #quantum 🧪⚛️
Classification of electronic structures and state preparation for...
Quantum computation for chemical problems will require the construction of guiding states with sufficient overlap with a target state. Since easily available and initializable mean-field states...
arxiv.org
September 19, 2024 at 3:51 AM
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 🧪⚛️
The use of orbital-entropies definitely brings more insight into the debate (remember www.nature.com/articles/s41...)
#quantumcomputing #physics #compchem #quantum 🧪⚛️
Reposted by Jakob Günther
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.
February 24, 2024 at 7:33 PM
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.