254 citations · 1.6k across the 69 of their papers we have counts for
69 papers
Exact spin form factors and correlations at a massive Kramers-Wannier interface
Zoltan Bajnok, Yizhuang Liu
We determine exact finite-volume spin form factors and two-point correlations for a massive Kramer--Wannier interface in the scaling Ising model, separating ordered and disordered…
A note on the 2D NLSM free energy
Yizhuang Liu
This note contains the perturbative computation of the 2D non-linear sigma model (NLSM) energy-density in a chemical potential , at the fourth order in the coupling constant exp…
Analyticity, asymptotics and natural boundary for a one-point function of the finite-volume critical Ising chain
Yizhuang Liu
This note reports the following observation: the finite-volume expectation value of the spin operator (the one-point function) between the -even and odd ground states…
Spin-operator form factors of the critical Ising chain and their finite volume scaling limits
Yizhuang Liu
In this work, we provide a self-contained derivation of the spin-operator matrix elements in the fermionic basis, for the critical periodic Ising chain at a generic system length $…
Asymptotic Long-Distance Expansion of Euclidean Correlators in Lattice Parton Applications
Xiangdong Ji, Yizhuang Liu, Yushan Su
Bilinear Euclidean quark and gluon correlators with Wilson links have been used widely for applications of large-momentum effective field theories to computing non-perturbative col…
Asymptotics of spin-spin correlators weighted by fermion number measurements with low rapidity threshold in the 2D Ising free-fermion QFT
Yizhuang Liu
In the work, we study the averaged number of massive fermions above a low rapidity threshold , underlying the form-factor expansions of the spin-spin two-point correlators at an…
Trans-series from condensates in the non-linear sigma model
Yizhuang Liu, Marcos Mariño
In this work we provide a massless perturbative framework for the two dimensional non-linear sigma model (NLSM), that allows the computation of the perturbative series attached to…
Renormalon-like factorial enhancements to power expansion/OPE in a super-renormalizable 2D quartic model
Yizhuang Liu
In this work, we investigate the effects of logarithms on the asymptotic behavior of power expansion/OPE in supper-renormalizable QFTs. We performed a careful investigation of the…
Effects of threshold resummation for large- PDF in large momentum effective theory
Xiangdong Ji, Yizhuang Liu, Yushan Su +1
Parton distribution functions (PDFs) at large are challenging to extract from experimental data, yet they are essential for understanding hadron structure and searching for new…
Spin-spin correlators on the / boundaries in 2D Ising-like models: exact analysis through theory of block Toeplitz determinants
Yizhuang Liu
In this work, we investigate quantitative properties of correlation functions on the boundaries between two 2D Ising-like models with dual parameters and . Spin-spin…
Bjorken and threshold asymptotics of a space-like structure function in the 2D Gross-Neveu model
Yizhuang Liu
In this work, we investigate a coordinate space structure function in the 2D Gross-Neveu model to the next-to-leading order in the large- expansion.…
Revisiting the time-ordering issue of TMD soft factors: causality, coordinate space analyticity and new equalities
Yizhuang Liu
We show that as a result of causality-constrained coordinate space analyticity, the Drell-Yan-shape transverse-momentum dependent soft factor in the exponential regulator allows Eu…
Renormalon cancellation and linear power correction to threshold-like asymptotics of space-like parton correlators
Yizhuang Liu, Yushan Su
In this paper, we show that the common hard kernel of double-log-type or threshold-type factorization for certain space-like parton correlators that arise in the context of lattice…
Analytic asymptotics of the integrable XXX critical spin chains in the small external-field limit from TBA
Yizhuang Liu
In this note, inspired partly by the works on the analytic trans-series of free-energies in 2D integrable QFTs in the UV limit, we study the corresponding asymptotic expansions in…
Energy-momentum tensor of a hydrogen atom: stability, D-term, and the Lamb shift
Andrzej Czarnecki, Yizhuang Liu, Syed Navid Reza
We clarify two issues related to the so-called -term in matrix elements of the energy-momentum tensor. First, we show that in a stable system, the -term can have either sign,…
Threshold resummation for computing large- parton distribution through large-momentum effective theory
Xiangdong Ji, Yizhuang Liu, Yushan Su
Parton distribution functions (PDFs) at large are poorly constrained by high-energy experimental data, but extremely important for probing physics beyond standard model at coll…
Updated analysis of near-threshold heavy quarkonium production for probe of proton's gluonic gravitational form factors
Yuxun Guo, Xiangdong Ji, Yizhuang Liu +1
There has been growing interest in the near-threshold production of heavy quarkonium which can access the gluonic structure in the nucleon. Previously we studied this process with…
Universality of Koba-Nielsen-Olesen scaling in QCD at high energy and entanglement
Yizhuang Liu, Maciej A. Nowak, Ismail Zahed
Using Mueller's dipole formalism for deep inelastic scattering in QCD, we formulate and solve the evolution for the generating function for the multiplicities of the produced parti…
The Nambu-Goto string in QCD: Dipole interactions, scattering and entanglement
Yizhuang Liu, Maciej A. Nowak, Ismail Zahed
We revisit some aspects of the stringy approach to dipole-dipole interactions, scattering and entanglement in QCD, using the Nambu-Goto (NG) string, without recourse to holography.…
Mueller's dipole wave function in QCD: emergent KNO scaling in the double logarithm limit
Yizhuang Liu, Maciej A. Nowak, Ismail Zahed
We analyze Mueller's QCD dipole wave function evolution in the double logarithm approximation (DLA). Using complex analytical methods, we show that the distribution of dipole in th…
Gravitational Tensor-Monopole Moment of Hydrogen Atom To Order
Xiangdong Ji, Yizhuang Liu
We calculate the gravitational tensor-monopole moment of the momentum-current density in the ground state of the hydrogen atom to order in quantum electrodyn…
Spatial entanglement in two dimensional QCD: Renyi and Ryu-Takayanagi entropies
Yizhuang Liu, Maciej A. Nowak, Ismail Zahed
We derive a general formula for the replica partition function in the vacuum state, for a large class of interacting theories with fermions, with or without gauge fields, using the…
Rapidity evolution of the entanglement entropy in quarkonium: parton and string duality
Yizhuang Liu, Maciej A. Nowak, Ismail Zahed
We investigate the quantum entanglement in rapidity space of the soft gluon wave function of a quarkonium, in theories with non-trivial rapidity evolutions. We found that the rapid…
Entanglement entropy and flow in two dimensional QCD: parton and string duality
Yizhuang Liu, Maciej A. Nowak, Ismail Zahed
We discuss quantum entanglement between fast and slow degrees of freedom, in a two dimensional (2D) large gauge theory with Dirac quarks, quantized on the light front. Using…