New vacuum state and symmetry breaking in polariton system

作者:Wang KL*; Yang JL; Li TZ; Qin G
来源:Physics Letters A, 1997, 236(1-2): 103-105.
DOI:10.1016/S0375-9601(97)00733-0

摘要

The polariton system is studied in a concise approach using a simple model. A new ground state with negative energy is obtained and is found to exhibit symmetry breaking.