19 citations · 22 across the 4 of their papers we have counts for
4 papers
Exploiting Maximally Mixed States for Spectral Estimation by Time Evolution
Kaelyn J. Ferris, Zihang Wang, Itay Hen +3
We introduce a novel approach for estimating the spectrum of quantum many-body Hamiltonians, and more generally, of Hermitian operators, using quantum time evolution. In our approa…
Dark radiation as a probe for phase transition in the early universe
Zihang Wang, Lijing Shao
The cosmological constant is not necessarily small in the early universe. If a scalar field obtains a vacuum expectation value after a phase transition (PT), a possibly large cosmo…
Computing the luminosity distance via optimal homotopy perturbation method
Bo Yu, Zi-Hua Wang, De-Zi Liu +1
We propose a new algorithm for computing the luminosity distance in the flat universe with a cosmological constant based on Shchigolev's homotopy perturbation method, where the opt…
Resonant instability of axionic dark matter clumps
Z. Wang, L. Shao, L. -X. Li
Axion is a popular candidate for dark matter particles. Axionic dark matter may form Bose-Einstein condensate and may be gravitationally bound to form axion clumps. Under the prese…