Speaker
Description
Three-nucleon systems offer fundamentals to determine the basic properties of three-nucleon forces (3NFs), such as the strength of the force. In contrast, many-nucleon systems are major playground of three-nucleon forces, as evidenced by, for example, spectroscopic properties of light nuclei, dripline determination, and nuclear-matter saturation.
In this presentation, we delve into the intricate relationship between spin-orbit (SO) splitting and 3NFs derived from chiral effective field theory. While the influence of 3NFs on enhancing SO splitting is well-documented, the precise mechanisms underlying this enhancement have remained elusive. Through a meticulous decomposition of the chiral 3NF, our investigation reveals that the rank-1 component emerges as the primary driver behind the enlargement of SO splitting in light nuclei.
Of particular interest is the antisymmetric nature of the rank-1 3NF, prompting intriguing parallels with phenomena observed in other domains, such as the spin canting caused by the Dzyaloshinsky-Moriya interaction in magnetic ions. Furthermore, we explore the implications of this antisymmetry in relation to the quantum entanglement of two-nucleon spin states.
By elucidating these intricate connections, our findings not only deepen our understanding of nuclear dynamics but also pave the way for future investigations into the broader implications of 3NFs.
