85 citations · 211 across the 21 of their papers we have counts for
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The critical endpoint in the 2d U(1) gauge-Higgs model at topological angle
Daniel Göschl, Christof Gattringer, Tin Sulejmanpasic
We study 2d U(1) gauge Higgs systems with a -term. For properly discretizing the topological charge as an integer we introduce a mixed group- and algebra-valued discretization (…
Dual simulation of the 2d U(1) gauge Higgs model at topological angle : Critical endpoint behavior
Christof Gattringer, Daniel Göschl, Tin Sulejmanpasic
We simulate the 2d U(1) gauge Higgs model on the lattice with a topological angle . The corresponding complex action problem is overcome by using a dual representation based on…
Instantons in the Hofstadter butterfly: difference equation, resurgence and quantum mirror curves
Zhihao Duan, Jie Gu, Yasuyuki Hatsuda +1
We study the Harper-Hofstadter Hamiltonian and its corresponding non-perturbative butterfly spectrum. The problem is algebraically solvable whenever the magnetic flux is a rational…
Anomaly and global inconsistency matching: -angles, nonlinear sigma model, chains and its generalizations
Yuya Tanizaki, Tin Sulejmanpasic
We discuss the nonlinear sigma model in 1+1D and, more broadly, its linearized counterparts. Such theories can be expressed as gauge the…
Critical Points at Infinity, Non-Gaussian Saddles, and Bions
Alireza Behtash, Gerald V. Dunne, Thomas Schaefer +2
It has been argued that many non-perturbative phenomena in quantum mechanics (QM) and quantum field theory (QFT) are determined by complex field configurations, and that these cont…
C-P-T anomaly matching in bosonic quantum field theory and spin chains
Tin Sulejmanpasic, Yuya Tanizaki
We consider the nonlinear sigma model with the -term and its linear counterpart in 1+1D. The model has discrete time-reflection and space-reflection symmetries at any …