Spontaneous Hawking Radiation from Dynamical Black-Hole Formation in Quantum Spin Systems
Abstract
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 to the early-time vacuum, with no initially prepared excitations, we follow the dynamics induced by the evolving geometry. In the corresponding continuum quantum field theory, Hawking particle creation is associated with nontrivial Bogoliubov mixing between the in- and out-mode decompositions. We derive the resulting renormalized local energy density in the continuum quantum field theory, which corresponds to an energy-weighted integral of the Hawking spectrum, and identify its counterpart as a local spin observable whose expectation value quantitatively reproduces the continuum prediction, including its dependence on the surface gravity. The agreement persists over a finite time window whose duration grows logarithmically with system size, revealing the crossover from universal continuum Hawking physics to lattice-cutoff dynamics. These results establish a microscopic route to quantum simulation of quantum field theory in curved spacetime, connecting field-theoretic particle creation directly to experimentally accessible many-body observables.
Related
- Guiding center quantization of a quantum Hall analog of Hawking radiation
- Quantum state texture of maximal-resource Fourier states under Hawking radiation
- Hawking evaporation and the possibility of remnant formation for covariant quantum black holes
- Amplitudes for Hawking radiation
- Hawking radiation from a semi-classical Schwarzschild black hole
BibTeX
@misc{kinoshita2026spontaneous,
title = {{Spontaneous Hawking Radiation from Dynamical Black-Hole Formation in Quantum Spin Systems}},
author = {Shunichiro Kinoshita and Keiju Murata and Daisuke Yamamoto and Ryosuke Yoshii},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.07794},
eprint = {2610.07794},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.07794},
}
RIS
TY - UNPB
TI - Spontaneous Hawking Radiation from Dynamical Black-Hole Formation in Quantum Spin Systems
AU - Shunichiro Kinoshita
AU - Keiju Murata
AU - Daisuke Yamamoto
AU - Ryosuke Yoshii
PY - 2026
DA - 2026/10/06
PB - arXiv
DO - 10.48550/arxiv.2610.07794
UR - https://arxiv.org/abs/2610.07794
AB - 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 to the early-time vacuum, with no initially prepared excitations, we follow the dynamics induced by the evolving geometry. In the corresponding continuum quantum field theory, Hawking particle creation is associated with nontrivial Bogoliubov mixing between the in- and out-mode decompositions. We derive the resulting renormalized local energy density in the continuum quantum field theory, which corresponds to an energy-weighted integral of the Hawking spectrum, and identify its counterpart as a local spin observable whose expectation value quantitatively reproduces the continuum prediction, including its dependence on the surface gravity. The agreement persists over a finite time window whose duration grows logarithmically with system size, revealing the crossover from universal continuum Hawking physics to lattice-cutoff dynamics. These results establish a microscopic route to quantum simulation of quantum field theory in curved spacetime, connecting field-theoretic particle creation directly to experimentally accessible many-body observables.
ER -