Analytical Quantum Complexity RIKEN Hakubi Research Team

RIKEN Hakubi Team Leader: Tomotaka Kuwahara (Ph.D.)

Research Summary

The field of revealing the computational complexity of quantum many-body system simulations when using a classical computer (or quantum computer) is called Hamiltonian Complexity. In particular, from the viewpoint of quantum supremacy of quantum computers and quantum algorithms employing NISQ (i.e., a small quantum computer without error correction), Hamiltonian complexity has become one of the most important research topics in the field of quantum information. Our research aims to solve open mathematical problems in Hamiltonian complexity.

News

From November 5–7, Ayumi Ukai attended the workshop “Recent Progress in Operator Theory and its Applications,” held at the Research Institute for Mathematical Sciences (RIMS), Kyoto University, and on the 7th delivered a talk titled “Effective Hamiltonian for an Equilibrium State.”