<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="script">PT</mml:mi></mml:math>-Symmetric Feedback Induced Linewidth NarrowingYuanjiang Tang, Yong‐Chun Liu, Chao Liang et al.|Physical Review Letters|2023Cited by 27