activity
20242026
most citedExact g-function without strings

1 citations · 2 across the 10 of their papers we have counts for

collaborators

10 papers

cond-mat.stat-mech2026

Norms, overlaps and Yangian descendants for the Haldane-Shastry spin chain

Yunfeng Jiang, Jules Lamers, Yuan Miao

The Haldane-Shastry spin chain is a prototypical integrable model with long-range interactions, notable for hosting quasiparticles with fractional statistics and serving as a discr…

hep-th2026

Fusion of Integrable Defects and the Defect -Function

Yang He, Yunfeng Jiang, Yuxiao Liu

We study exact defect -functions for integrable line defects in two-dimensional integrable quantum field theory and use them to probe defect fusion. We consider three settings:…

math.AG2026

Enumerative Geometry on KSBA moduli spaces

Yunfeng Jiang

We survey two new compactification methods for the KSBA moduli space of general type surfaces so that both of them admit a perfect obstruction theory. Virtual fundamental classes e…

hep-th2026

Beyond Hagedorn: A Harmonic Approach to -deformation

Jie Gu, Jue Hou, Yunfeng Jiang

We apply harmonic analysis to study the -deformed torus partition function. We first express the CFT partition functions in terms of Maass waveforms, including the Eisens…

quant-ph2026

Gate Parameter Lee-Yang Zeros and Dynamical Phases in Quantum Circuits

Yunfeng Jiang, Chang Liu, Yu Wu +1

We propose gate-parameter Lee-Yang zeros of Loschmidt amplitudes as probes of dynamical phases in finite quantum circuits. We study Floquet circuits constructed from two-qubit fSim…

hep-th2025

Resurgent properties of -deformed conformal field theories

Jie Gu, Yunfeng Jiang, Huajia Wang

We elaborate on the resurgence analysis on the -deformed 2d conformal field theory (CFT). Writing the deformed partition function as an infinite series in the deform…

hep-th2025

Giant Graviton Correlators as Defect Systems

Junding Chen, Yunfeng Jiang, Xinan Zhou

We consider correlation functions of two maximal giant gravitons and two light -BPS operators in 4d SYM. Viewed as two-point correlators in the presenc…

hep-th2024★ 1 cited

Exact g-function without strings

Yi-Jun He, Yunfeng Jiang

We propose a new approach to compute exact -function for integrable quantum field theories with non-diagonal scattering S-matrices. The approach is based on an integrable lattic…

hep-th2024

Resurgence of -deformed Partition Function

Jie Gu, Yunfeng Jiang, Huajia Wang

We study non-perturbative effects of torus partition function of the -deformed 2d CFTs by resurgence. The deformed partition function can be written as an infinite series…

cond-mat.stat-mech2024★ 1 cited

Spectrum-preserving deformations of integrable spin chains with open boundaries

Yunfeng Jiang, Yuan Miao

We discover a family of local deformations that leave part of the spectrum intact for strongly interacting and exactly solvable quantum many-body systems. Since the deformation pre…