Lattice QCD has begun exploring properties of light nuclear systems beyond their simplest properties such as their lowest-lying spectra. While the progress has been made in the past year in pursuing the physical quark-mass calculations with reasonable precision, technologies have been developed, and results have been obtained, for simplest nuclear matrix elements and nuclear reactions at heavier q ... More

I will present recent progresses of LQCD on hadronic interactions which play a crucial role to understand hadron resonances and the properties of atomic nuclei. So far, two methods to extract the hadronic interactions were proposed; the Luscher's method and the HAL QCD method. These are known to be theoretically equivalent. In the first part of my talk, I will discuss baryon-baryon interactions u ... More