11 citations · 11 across the 5 of their papers we have counts for
6 papers
Gravitational-wave Echoes Beyond the Hubble Time from Quantum Black Holes
Che-Yu Chen, Naritaka Oshita, Yuki Yokokura
We investigate gravitational-wave echoes in a horizonless compact object model, a non-perturbative solution of the semi-classical Einstein equation that reproduces the entropy-area…
Revisiting Spherically Symmetric Spacetime I: Geometro-Hydrodynamics
Puttarak Jai-akson, Yuki Yokokura
This series of works revisits the geometry, dynamics, and covariant phase space of spherically symmetric spacetimes with the aim of exploring the thermodynamics of spacetime from t…
Schrödinger Symmetry in Spherically-symmetric Static Mini-superspaces with Matter Fields
Taishi Sano, Yuki Yokokura
Schrödinger symmetry has been shown to emerge in a ``fluid limit" from the full superspace to several mini-superspace models. To investigate one aspect of the robustness of this em…
Effective Dynamics of Spherically Symmetric Static Spacetime
Etera R. Livine, Yuki Yokokura
In general relativity, the Einstein equations provide spherically symmetric static spacetimes with dynamics defined as an evolution along the radial coordinate . The geometrical…
Imaging a semi-classical horizonless compact object with strong redshift
Che-Yu Chen, Yuki Yokokura
The recent advancements in black hole imaging have opened a new era of probing horizon-scale physics with electromagnetic radiation. However, a feature of the observed images, a br…
Black Hole from Entropy Maximization
Yuki Yokokura
One quantum characterization of a black hole motivated by (local) holography and thermodynamics is that it maximizes thermodynamic entropy for a given surface area. In the context…