Emergent phases in a compass chain with multisite interactions

We study a dimerised spin chain with biaxial magnetic interacting ions in the presence of an externally induced three-site interactions out of equilibrium. In the general case, the three-site interactions play a role in renormalizing the effective uniform magnetic field. We find that the existence of zero-energy Majorana modes is intricately related to the sign of Pfaffian of the Bogoliubov-de Gennes Hamiltonian and the relevant $Z_2$ topological invariant. In contrast, we show that an exotic spin liquid phase can emerge in the compass limit through a Berezinskii-Kosterlitz-Thouless (BKT) quantum phase transition. Such a BKT transition is characterized by a large dynamic exponent $z=4$, and the spin-liquid phase is robust under a uniform magnetic field. We find the relative entropy and the quantum discord can signal the BKT transitions. We also uncover a few differences in deriving the correlation functions for the systems with broken reflection symmetry.Comment: 12 pages, 10 figure

The Effects of Aroma on Relaxation During the Group Calligraphy Activity of Elderly People: Case Studies in China and Japan

Previous research has found that aromatherapy has positive effects on ability and mood. However, only a limited number of studies have focused on the effects of aroma on elderly people when they are engaged in group activities, although it has proven to be beneficial to the elderly. Consequently, we studied the effects of aroma on the relaxation of elderly participants of a group activity by conducting an experiment in which we used orange oil to provide an "aroma environment" and plain water to provide a "without-aroma environment." Our results suggest that citrus aromas have an effect on the physiological and psychological relaxation of elderly people when they are participating in group activities. Further studies are required focusing on the observation of different kinds of aromas and the sustainability of the same aroma.Art and Design Research for Sustainable Development ; September 22, 2018Conference: Tsukuba Global Science Week 2018Date: September 20-22, 2018Venue: Tsukuba International Congress Center Sponsored: University of Tsukub