89 citations · 797 across the 42 of their papers we have counts for
43 papers
Spontaneous Hawking Radiation from Dynamical Black-Hole Formation in Quantum Spin Systems
Shunichiro Kinoshita, Keiju Murata, Daisuke Yamamoto +1
We show that Hawking radiation spontaneously generated by dynamical black-hole formation can be realized in a local quantum spin model. Starting from the ground state corresponding…
Simulating Quantum Field Theories with Boundaries in Curved Spacetimes Using Open Spin Systems
Shunichiro Kinoshita, Keiju Murata, Daisuke Yamamoto +1
We develop a framework to simulate quantum field theories (QFTs) with boundaries in -dimenmsional curved spacetimes by employing open spin systems. Building upon our previou…
Spin systems as quantum field theories in inflationary universe: A study with Unruh-DeWitt detectors
Shunichiro Kinoshita, Keiju Murata, Daisuke Yamamoto +1
We propose a method to probe the thermal properties of quantum field theory (QFT) in an inflationary universe simulated by spin systems. Our previous work (arXiv:2410.07587) has de…
Spin systems as quantum simulators of quantum field theories in curved spacetimes
Shunichiro Kinoshita, Keiju Murata, Daisuke Yamamoto +1
We demonstrate that a quantum field theory (QFT) in general two-dimensional curved spacetimes can be realized by a system of quantum spins or qubits. We consider a spin-1/2 model o…
Geometrical origin of the Kodama vector
Shunichiro Kinoshita
It has been known that warped-product spacetimes such as spherically symmetric ones admit the Kodama vector. This vector provides a locally conserved current made by contraction of…
Spin current generation due to differential rotation
Takumi Funato, Shunichiro Kinoshita, Norihiro Tanahashi +2
We study nonequilibrium spin dynamics in differentially rotating systems, deriving an effective Hamiltonian for conduction electrons in the comoving frame. In contrast to conventio…