New phase in high density hadronic matter

2014 Fiscal Year Final Research Report

• Project/Area Number: 24740184
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The Institute of Physical and Chemical Research
• Principal Investigator: HIDAKA Yoshimasa 独立行政法人理化学研究所, 仁科加速器研究センター, 専任研究員 (00425604)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 自発的対称性の破れ

Outline of Final Research Achievements

Symmetry and its spontaneous breaking is one of the important concepts in modern physics. In general, it is known that when a continuous symmetry is spontaneously broken, there appears the gapless excitation modes called the Nambu-Goldstone mode (Nambu-Goldstone of the theorem). The pions and spin waves in the ferromagnets are examples of NG modes. The original theorem was formulated in the relativistic systems. We generalize the Nambu-Goldstone theorem in the Lorentz invariant systems to that in the nonrelativistic systems, and we clarify the relationship of spontaneous symmetry breaking and Nambu-Goldstone mode that was not well understood for a long time.

Free Research Field

ハドロン物理学