3 papers
hep-th2025
Monte Carlo studies of the emergent spacetime in the polarized IKKT model
Chien-Yu Chou, Jun Nishimura, Cheng-Tsung Wang
The IKKT matrix model has been investigated as a promising nonperturbative formulation of superstring theory. One of the recent developments concerning this model is the discovery…
hep-lat2025
Quantum decoherence in the Caldeira-Leggett model by the real-time path integral on a computer
Jun Nishimura, Hiromasa Watanabe
We propose first-principle calculations of an open system based on the real-time path integral formalism treating the environment as well as the system of our interest together on…
hep-th2025
Inequivalence between the Euclidean and Lorentzian versions of the type IIB matrix model from Lefschetz thimble calculations
Chien-Yu Chou, Jun Nishimura, Ashutosh Tripathi
The type IIB matrix model is conjectured to describe superstring theory nonperturbatively in terms of ten bosonic traceless Hermitian matrices (…