1 citations · 1 across the 3 of their papers we have counts for
8 papers
Finite Coherence in Gravitational Waves from Tidally Excited Axion Clouds
Yizhi Liang, Mian Zhu, Wen-Biao Han +3
Axion clouds around rotating black holes form gravitational atoms whose tidal transitions can radiate gravitational waves in binaries. For strongly coupled Bohr crossings, transiti…
Smoking-gun signatures of bounce cosmology from echoes of relic gravitational waves
Mian Zhu, Yi-Fu Cai
We report a novel feature of relic gravitational waves (GWs) in non-singular bounce cosmologies that is testable in light of GWs astronomy. In non-singular bounce cosmologies, the…
Revisiting the Lyth bound constraints on inflation from ACT DR6 results
Rui Yang, Jun Tao, Peng Wang +1
The Lyth bound asserts that the field excursion of inflaton must be sub-Planckian, thereby imposing an upper bound on the amplitude of the tensor power spectrum in inflationary sce…
Constraints on Genesis Cosmology from the Smeared Null Energy Condition
Dong-Hui Yu, Mian Zhu, Yong Cai
The violation of the null energy condition (NEC) is essential for constructing nonsingular cosmological scenarios, such as Genesis cosmology, which avoids the initial singularity b…
Testing gravitational wave polarizations with LISA
Shingo Akama, Maxence Corman, Paola C. M. Delgado +16
In this paper we quantify the ability of the Laser Interferometer Space Antenna (LISA) to test the presence of non-tensorial polarizations as well as modifications to the tensor on…
Scalar-assisted magnetogenesis during the radiation-dominated epoch
Alexander Ganz, Chunshan Lin, Mian Zhu
We propose a novel mechanism to generate primordial magnetic fields (PMFs) strong enough to explain the observed cosmic magnetic fields. We employ a scalar field charged under U(1)…