Yizhuang Liu

Disorder in the Sachdev–Ye–Kitaev model

Abstract We give qualitative arguments in support of the mesoscopic nature of the Sachdev–Ye–Kitaev (SYK) model in the regime with q 2 / N ≪ 1 with N Majorana particles coupled by antisymmetric and random interactions of range q . Using a stochastic deformation of the SYK model, we show that its characteristic determinant obeys a viscid Burgers equation with a small spectral viscosity in the regime with q / N = 1 / 2 . In particular, the stochastic evolution of the SYK model can be mapped exactly onto that of random matrix theory, with universal Airy oscillations at the edges.

Confining dyon-antidyon Coulomb liquid model. I.

We revisit the dyon-anti-dyon liquid model for the Yang-Mills confining vacuum discussed by Diakonov and Petrov, by retaining the effects of the classical interactions mediated by the streamline between the dyons and anti-dyons. In the SU(2) case the model describes a 4-component strongly interacting Coulomb liquid in the center symmetric phase. We show that in the linearized screening approximation the streamline interactions yield Debye-Huckel type corrections to the bulk parameters such as the pressure and densities, but do not alter significantly the large distance behavior of the correlation functions in leading order. The static scalar and charged structure factors are consistent with a plasma of a dyon-anti-dyon liquid with a Coulomb parameter

Light quarks in the screened dyon-antidyon Coulomb liquid model. II.

\Gamma_{D\bar D}\approx 1

Heavy Baryons and their Exotics from Instantons in Holographic QCD

in the dyon-anti-dyon channel. Heavy quarks are still linearly confined and the large spatial Wilson loops still exhibit area laws in leading order. The t

Heavy–light mesons in chiral AdS/QCD

^\prime

Holographic Heavy-Light Chiral Effective Action

Hooft loop is shown to be 1 modulo Coulomb corrections.

Light Adjoint Quarks in the Instanton-Dyon Liquid Model IV

We discuss an extension of the dyon-anti-dyon liquid model that includes light quarks in the dense center symmetric Coulomb phase. In this work, like in our previous one, we use the simplest color SU(2) group. We start with a single fermion flavor

Heavy and Strange Holographic Baryons

N_f=1

Pion Condensation by Rotation in a Magnetic Field

and explicitly map the theory onto a 3-dimensional quantum effective theory with a fermion that is only U

Heavy exotic molecules with charm and bottom

_V(1)