Credit: Prof. Serdar ElhatisariWavefunction matching for solving quantum many-body problems.Strongly communicating systems are important in the fields of quantum physics and quantum chemistry. Quantum mechanics forms the basis of quantum many-body theory, which describes systems with many particles, such as atomic nuclei.One class of methods used by nuclear physicists to study atomic nuclei is the ab initio approach. “This method can be utilized in both classical computing and quantum computing, for example, to much better anticipate the homes of so-called topological products, which are essential for quantum computing,” states Meißner.Reference: “Wavefunction matching for solving quantum many-body issues” by Serdar Elhatisari, Lukas Bovermann, Yuan-Zhuo Ma, Evgeny Epelbaum, Dillon Frame, Fabian Hildenbrand, Myungkuk Kim, Youngman Kim, Hermann Krebs, Timo A. Lähde, Dean Lee, Ning Li, Bing-Nan Lu, Ulf-G.
Credit: Prof. Serdar ElhatisariWavefunction matching for solving quantum many-body problems.Strongly interacting systems are vital in the fields of quantum physics and quantum chemistry. Quantum mechanics forms the basis of quantum many-body theory, which describes systems with lots of particles, such as atomic nuclei.One class of approaches utilized by nuclear physicists to study atomic nuclei is the ab initio method.”In quantum many-body theory, we are often faced with the situation that we can perform estimations utilizing a basic approximate interaction, but realistic high-fidelity interactions trigger serious computational issues,” states Dean Lee, Professor of Physics from the Facility for Rare Istope Beams and Department of Physics and Astronomy (FRIB) at Michigan State University and head of the Department of Theoretical Nuclear Sciences.Practical Applications and Future ProspectsWavefunction matching solves this problem by getting rid of the short-distance part of the high-fidelity interaction and replacing it with the short-distance part of a quickly calculable interaction. Since the new wavefunctions are similar to those of the easily computable interaction, the researchers can now perform estimations with the quickly computable interaction and use a basic procedure for managing little corrections– called perturbation theory.The research study group used this brand-new technique to lattice quantum Monte Carlo simulations for light nuclei, medium-mass nuclei, neutron matter, and nuclear matter. “This approach can be utilized in both classical computing and quantum computing, for example, to much better anticipate the residential or commercial properties of so-called topological materials, which are crucial for quantum computing,” states Meißner.Reference: “Wavefunction matching for fixing quantum many-body problems” by Serdar Elhatisari, Lukas Bovermann, Yuan-Zhuo Ma, Evgeny Epelbaum, Dillon Frame, Fabian Hildenbrand, Myungkuk Kim, Youngman Kim, Hermann Krebs, Timo A. Lähde, Dean Lee, Ning Li, Bing-Nan Lu, Ulf-G.