Zobrazeno 1 - 10
of 2 491
pro vyhledávání: '"Karl, Michael"'
Autor:
Reinholdt, Peter, Kjellgren, Erik Rosendahl, Ziems, Karl Michael, Coriani, Sonia, Sauer, Stephan P. A., Kongsted, Jacob
Quantum computing presents a promising avenue for solving complex problems, particularly in quantum chemistry, where it could accelerate the computation of molecular properties and excited states. This work focuses on hybrid quantum-classical algorit
Externí odkaz:
http://arxiv.org/abs/2411.03852
We characterise regions in the complex plane that contain all non-embedded eigenvalues of a perturbed periodic Dirac operator on the real line with real-valued periodic potential and a generally non-symmetric matrix-valued perturbation V . We show th
Externí odkaz:
http://arxiv.org/abs/2410.12467
Autor:
Ziems, Karl Michael, Kjellgren, Erik Rosendahl, Sauer, Stephan P. A., Kongsted, Jacob, Coriani, Sonia
The promise of quantum computing to circumvent the exponential scaling of quantum chemistry has sparked a race to develop chemistry algorithms for quantum architecture. However, most works neglect the quantum-inherent shot noise, let alone the effect
Externí odkaz:
http://arxiv.org/abs/2408.09308
Autor:
Kjellgren, Erik Rosendahl, Reinholdt, Peter, Ziems, Karl Michael, Sauer, Stephan P. A., Coriani, Sonia, Kongsted, Jacob
Publikováno v:
J. Chem. Phys. 161, 124112 (2024)
Calculating molecular properties using quantum devices can be done through the quantum linear response (qLR) or, equivalently, the quantum equation of motion (qEOM) formulations. Different parameterizations of qLR and qEOM are available, namely naive
Externí odkaz:
http://arxiv.org/abs/2406.17141
Autor:
von Buchwald, Theo Juncker, Ziems, Karl Michael, Kjellgren, Erik Rosendahl, Sauer, Stephan P. A., Kongsted, Jacob, Coriani, Sonia
Publikováno v:
J. Chem. Theory Comput. 2024, 20, 16, 7093-7101
The prediction of spectral properties via linear response (LR) theory is an important tool in quantum chemistry for understanding photo-induced processes in molecular systems. With the advances of quantum computing, we recently adapted this method fo
Externí odkaz:
http://arxiv.org/abs/2404.16586
Autor:
Nagy, Dániel, Reinholdt, Peter, Jensen, Phillip W. K., Kjellgren, Erik Rosendahl, Ziems, Karl Michael, Fitzpatrick, Aaron, Knecht, Stefan, Kongsted, Jacob, Coriani, Sonia, Sauer, Stephan P. A.
Publikováno v:
J. Phys. Chem. A 128(30), 6305-6315 (2024)
We test the performance of the Polarizable Embedding Variational Quantum Eigensolver Self-Consistent-Field (PE-VQE-SCF) model for computing electric field gradients with comparisons to conventional complete active space self-consistent-field (CASSCF)
Externí odkaz:
http://arxiv.org/abs/2404.14531
Autor:
Reinholdt, Peter, Kjellgren, Erik Rosendahl, Fuglsbjerg, Juliane Holst, Ziems, Karl Michael, Coriani, Sonia, Sauer, Stephan P. A., Kongsted, Jacob
Publikováno v:
J. Chem. Theory Comput. 2024, 20, 9, 3729-3740
We explore Davidson methods for obtaining excitation energies and other linear response properties within quantum self-consistent linear response (q-sc-LR) theory. Davidson-type methods allow for obtaining only a few selected excitation energies with
Externí odkaz:
http://arxiv.org/abs/2402.12186
Autor:
Ziems, Karl Michael, Kjellgren, Erik Rosendahl, Reinholdt, Peter, Jensen, Phillip W. K., Sauer, Stephan P. A., Kongsted, Jacob, Coriani, Sonia
Publikováno v:
J. Chem. Theory Comput. 2024, 20, 3551-3565
Linear response (LR) theory is a powerful tool in classic quantum chemistry crucial to understanding photo-induced processes in chemistry and biology. However, performing simulations for large systems and in the case of strong electron correlation re
Externí odkaz:
http://arxiv.org/abs/2312.13937
Autor:
Jensen, Phillip W. K., Kjellgren, Erik Rosendahl, Reinholdt, Peter, Ziems, Karl Michael, Coriani, Sonia, Kongsted, Jacob, Sauer, Stephan P. A.
Publikováno v:
J. Chem. Theory Comput. 2024, 20, 9, 3613-3625
Determining the properties of molecules and materials is one of the premier applications of quantum computing. A major question in the field is how to use imperfect near-term quantum computers to solve problems of practical value. Inspired by the rec
Externí odkaz:
http://arxiv.org/abs/2312.12386