The Graduate University for Advanced Studies, SOKENDAI

The emergence of (3+1)-dimensional expanding spacetime from complex Langevin simulations of the Lorentzian type IIB matrix model with deformations

Abstract The Lorentzian type IIB matrix model is a promising candidate for a nonperturbative formulation of superstring theory. In this model, the eigenvalue distribution of the N × N bosonic matrices Aμ (μ = 0, …, 9) represents an emergent spacetime, which is determined by the d...

Artificial hibernation reveals synaptic engram architecture associated with memory retention

Memories leave lasting physical changes at the synaptic level. Although stable, larger spines are thought to support memory, the high turnover of dendritic spines and the drifting of neuronal representations after memory formation suggest alternative possibilities. To elucidate t...

ElectronicStructure of Cu-Phthalocyanine Metal–OrganicFramework

Abstract Metal phthalocyanine metal–organic frameworks (MPc-MOFs) possess a crystalline structure consisting of stacked molecular layers that form a square lattice composed of metal phthalocyanine (MPc) units. The unique structure of these MPc-MOF molecular layers is theoreticall...

Decoupling Electronic Activation and Pore Connectivity in Acidic Oxygen Reduction on Metal‐Free Biomass‐Derived Carbon Catalysts

Acidic oxygen reduction is often discussed as if catalytic activation and mass transport were inseparable. Here, biomass‐derived carbon was used to examine these contributions through oxidation, ammonia annealing, and KOH activation. The onset potential is associated primarily wi...