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hep-th2025
Branched polymers with loops coupled to the critical Ising model
Jan Ambjørn, Yukimura Izawa, Yuki Sato
We study the continuum limit of branched polymers (BPs) with loops coupled to Ising spins at the zero-temperature critical point. It is known that the continuum partition function…
hep-th2025
Pinched geometries in 2D Lorentzian quantum Regge calculus
Yoshiyasu Ito, Daisuke Kadoh, Yuki Sato
We investigate pinched geometries in a two-dimensional Lorentzian model of quantum Regge calculus (QRC) using the tensor renormalization group (TRG) method. A pinched geometry refe…
hep-th2025
Properties of the wormhole-dominant phase in two-dimensional quantum gravity
Tsunehide Kuroki, Yuki Sato
We study the Hermitian one-matrix model modified by the double-trace interaction. It is known that the coupling for the double-trace interaction can control the weight…