4 papers · 1 filter
Black Hole Multi-Entropy Curves
Norihiro Iizuka, Simon Lin, Mitsuhiro Nishida
We investigate the multi-partite entanglement structure of an evaporating black hole and its Hawking radiation by dividing the radiation into finer subsystems. We approximate an ev…
A note on the non-planar corrections for the Page curve in the PSSY model via the IOP matrix model correspondence
Norihiro Iizuka, Mitsuhiro Nishida
We develop a correspondence between the PSSY model and the IOP matrix model by comparing their Schwinger-Dyson equations, Feynman diagrams, and parameters. Applying this correspond…
Logarithmic singularities of Renyi entropy as a sign of chaos?
Norihiro Iizuka, Mitsuhiro Nishida
We propose that the logarithmic singularities of the Renyi entropy of local-operator-excited states for replica index can be a sign of quantum chaos. As concrete examples, we a…
Krylov complexity as an order parameter for deconfinement phase transitions at large
Takanori Anegawa, Norihiro Iizuka, Mitsuhiro Nishida
Krylov complexity has been proposed as a diagnostic of chaos in non-integrable lattice and quantum mechanical systems, and if the system is chaotic, Krylov complexity grows exponen…