The discovery of the AdS/CFT correspondence and the expanding universe motivated the investigation of QNMs in de Sitter and anti-de Sitter space-time in past few years.

• 近几年，Anti-de Sitter与共形场对应以及膨胀宇宙的促使人们去研究de Sitter以及Anti-de Sitter时空背景中的似正规模。