23 citations · 75 across the 19 of their papers we have counts for
19 papers
Spectral Topology and Universal Krylov Dynamics
Jeff Murugan, Hendrik J. R. Van Zyl, Masataka Watanabe
The leading asymptotic growth of Lanczos coefficients is controlled by spectral tails and furnishes a coarse classification of Krylov dynamics. We show that the \textit{global topo…
Rethinking quantum information in gravity and fields
Kanato Goto, Yuta Hamada, Kohtaro Kato +6
This paper presents a curated selection of research questions at the intersection of quantum gravity and quantum information, chosen to highlight issues that we regard as particula…
Emergent Andreev Reflection from a Lattice Duality Defect
Atsushi Ueda, Tokiro Numasawa, Boris De Vos +1
Andreev reflection converts an incoming fermion into an outgoing hole and is usually tied to a superconducting interface. We show that an analogous charge-conjugating boundary cond…
What happens to wavepackets of fermions when scattered by the Maldacena-Ludwig wall?
Yuji Tachikawa, Keita Tsuji, Masataka Watanabe
We study wavepackets of exotic excitations after two-dimensional fermions are scattered by the boundary condition constructed by Maldacena and Ludwig, which turns elementary excita…
A JT/KPZ correspondence
Masataka Watanabe
We point out a correspondence between the Jackiw--Teitelboim (JT) gravity and the stationary measure of the Kardar--Parisi--Zhang (KPZ) equation on an interval. By relating the Sch…
Large-charge Rényi entropy
Masataka Watanabe
The charged (symmetry-resolved) vacuum Rényi entanglement entropy on a disk is computed in the limit of large U(1) global charge for any Rényi index. We show that it behaves univer…
Gauge theory and mixed state criticality
Takamasa Ando, Shinsei Ryu, Masataka Watanabe
In mixed quantum states, the notion of symmetry is divided into two types: strong and weak symmetry. While spontaneous symmetry breaking (SSB) for a weak symmetry is detected by tw…
A Quantum-Resistant Photonic Hash Function
Tomoya Hatanaka, Rikuto Fushio, Masataka Watanabe +3
We propose a quantum hash function based on Gaussian boson sampling on a photonic quantum computer, aiming to provide quantum-resistant security. Extensive simulations demonstrate…
6d Large Charge and 2d Virasoro Blocks
Jonathan J. Heckman, Adar Sharon, Masataka Watanabe
We compute observables in the interacting rank-one 6d SCFT at large R-charge. We focus on correlators involving , namely symmetric products of the bottom c…
Hawking-Page and entanglement phase transition in 2d CFT on curved backgrounds
Akihiro Miyata, Masahiro Nozaki, Kotaro Tamaoka +1
The thermodynamics and the entanglement properties of two-dimensional conformal field theories (d CFTs) on curved backgrounds are studied. By means of conformal mapping we study…
On perturbation around closed exclusion processes
Masataka Watanabe
We derive the formula for the stationary states of particle-number conserving exclusion processes infinitesimally perturbed by inhomogeneous adsorption and desorption. The formula…
Integrability of Large-Charge Sectors in Generic 2D EFTs
Matthew Dodelson, Simeon Hellerman, Masataka Watanabe +1
It is shown that integrability is an accidental property of generic two-dimensional -symmetric asymptotically-free theories in the regime where the charge density is much lar…
Band Flattening and Overlap Fermion
Taro Kimura, Masataka Watanabe
We show that, for each symmetry class based on the tenfold way classification, the effective Dirac operator obtained by integrating out the additional bulk direction takes a value…
A counterexample to the CFT convexity conjecture
Adar Sharon, Masataka Watanabe
Motivated by the weak gravity conjecture, arXiv:2108.04594 conjectured that in any CFT, the minimal operator dimension at fixed charge is a convex function of the charge. In this l…
Information metric on the boundary
Kenta Suzuki, Yu-ki Suzuki, Takashi Tsuda +1
The information metric on the space of boundary coupling constants in two-dimensional conformal field theories is studied. Such a metric is related to the Casimir energy difference…
Stability Analysis of a Non-Unitary CFT
Masataka Watanabe
We study instability of the lowest dimension operator (\it i.e., \rm the imaginary part of its operator dimension) in the rank- traceless symmetric representation of the …
Going beyond ER=EPR in the SYK model
Micha Berkooz, Nadav Brukner, Simon F. Ross +1
We discuss generalizations of the TFD to a density matrix on the doubled Hilbert space. We suggest that a semiclassical wormhole corresponds to a certain class of such density matr…
Chern-Simons-Matter Theories at Large Baryon Number
Masataka Watanabe
We study Chern-Simons theories at level coupled to a scalar on at large baryon number. We find a homogeneous but anisotropic ground state configu…
Observables in Inhomogeneous Ground States at Large Global Charge
Simeon Hellerman, Nozomu Kobayashi, Shunsuke Maeda +1
As a sequel to previous work, we extend the study of the ground state configuration of the , Wilson-Fisher conformal model. In this work, we prove that for generic rati…