Toward primordial gravitational waves and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:msub> <mml:mrow> <mml:mi>n</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>s</mml:mi> </mml:mrow> </mml:msub> <mml:mo>=</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:math> in light of BICEP/Keck and DESI BAO data and the Hubble tension

Hao Wang, Gen Ye, Jun-Qian Jiang, Yun-Song Piao