6 papers
Exact Relevant Stress-Tensor Flows and a Causality No-Go in Self-Dual Electrodynamics
H. Babaei-Aghbolagh, Bin Chen, Song He +1
Can a classically relevant stress-tensor deformation be exactly solvable, duality preserving, and physically causal? We construct an exact power-law family of nonlinear electrodyna…
The Triple -Like Flow in Quantum Field Theories: Irrelevant, Marginal, and Relevant
H. Babaei-Aghbolagh, Bin Chen, Song He +1
We introduce a one-parameter root--like flow, , which organizes stress-tensor deformations into irrelevant, marginal, and re…
Ground States of One-Dimensional Fermionic Schrödinger Systems Near a Critical Exponent
Bin Chen, Yujin Guo, Yong Luo +1
We study ground states of the fermionic nonlinear Schrödinger system in , where denotes a polynomial exponent of the nonlinear term. It is known that the system…
Self-Dual Electrodynamics via the Characteristic Method: Relativistic and Carrollian Perspectives
Bin Chen, Song He, Jue Hou
Electric-magnetic duality plays a pivotal role in understanding the structure of nonlinear electrodynamics (NED). The Gaillard-Zumino (GZ) criterion provides a powerful constraint…
Integrable Sigma Models and Universal Root Deformation via Courant-Hilbert Approach
H. Babaei-Aghbolagh, Bin Chen, Song He
We develop a unified Courant--Hilbert framework for constructing two-dimensional integrable sigma models deformed by two couplings: a marginal one and an irrelevant one .…
Root- Flows Unify 4D Duality-Invariant Electrodynamics and 2D Integrable Sigma Models
H. Babaei-Aghbolagh, Bin Chen, Song He
We present a unified framework that connects four-dimensional duality-invariant nonlinear electrodynamics and two-dimensional integrable sigma models via the Courant-Hilbert and ne…