105 citations · 406 across the 15 of their papers we have counts for
16 papers
QCD_2: 't Hooft equation vs. relativistic Schroedinger equation
Andrei Smilga
We discuss 2-dimensional with a fundamental quark of mass in the 't Hooft limit ( const). The spectrum of this theory includes a ch…
Meson states in `t Hooft model: Hamiltonian approach
A. V. Smilga
We point out that the masses of the highly excited bound quark-antiquark states in QCD in the infinite limit may be determined in the framework of a simple quantum-mechanic…
QCD sum rules: Borel parameter vs. Euclidean time
A. V. Smilga
We explore a modification of QCD sum rules where, instead of Borel transforms of current correlators, one considers the correlators in coordinate space as functions of Euclidean ti…
Symmetries of massless QCD
A. V. Smilga
We present a pedagogical review of certain exact theoretical results concerning the physics of an imaginary world where one quark or more are deprived of their masses.
Supersymmetric field theory with benign ghosts
A. V. Smilga
We construct a supersymmetric (1+1)-dimensional field theory involving extra derivatives and associated ghosts: the spectrum of the Hamiltonian is not bounded from below, neither f…
Quasiclassical expansion for Tr{(-1)^F exp(-βH)}
A. V. Smilga
We start with some methodic remarks referring to purely bosonic quantum systems and then explain how corrections to the leading--order quasiclassical result for the fermion--graded…
Tenacious Domain Walls in Supersymmetric QCD
A. V. Smilga
We study the structure of the tenacious (existing for all values of masses of the matter fields) BPS domain walls interpolating between different chirally asymmetric vacua in super…
Physics of hot and dense QCD
A. V. Smilga
We give a brief review of modern theoretical understanding of the physics of QCD at finite temperature and density. We concentrate in particular on the properties of hadron gas at…
QCD at θ\sim π
A. V. Smilga
Taking into account the quadratic in mass terms in the effective chiral lagrangian, we show that, at θ\sim π, the theory with 2 light quarks of equal mass involves two degenerate v…
BPS and non-BPS Domain Walls in Supersymmetric QCD with SU(3) Gauge Group
A. V. Smilga, A. I. Veselov
We study the spectrum of the domain walls interpolating between different chirally asymmetric vacua in supersymmetric QCD with the SU(3) gauge group and including 2 pairs of chiral…
Domain Walls Zoo in Supersymmetric QCD
A. V. Smilga, A. I. Veselov
Solving numerically the equations of motion for the effective lagrangian describing supersymmetric QCD with the SU(2) gauge group, we find a menagerie of complex domain wall soluti…
Complex BPS domain walls and phase transition in mass in supersymmetric QCD
A. Smilga, A. Veselov
We study the domain walls connecting different chirally asymmetric vacua in supersymmetric QCD. We show that BPS - saturated solutions exist only in the limited range of mass. When…
Two-Dimensional Instantons with Bosonization and Physics of Adjoint
A. V. Smilga
We evaluate partition functions in topologically nontrivial (instanton) gauge sectors in the bosonized version of the Schwinger model and in a gauged WZNW model corresponding…
Physics of Quark--Gluon Plasma
A. V. Smilga
In this lecture, we give a brief review of what theorists now know, understand, or guess about static and kinetic properties of quark--gluon plasma. A particular attention is payed…
Thermal phase transition in QCD
A. Smilga
We give a review of modern theoretical understanding of the problem of thermal phase transition in . The existence or non-existence of such transition depends on the nature of…
Really Computing Non-perturbative Real Time Correlation Functions
Dietrich Bödeker, Larry McLerran, Andrei Smilga
It has been argued by Grigoriev and Rubakov that one can simulate real time processes involving baryon number non-conservation at high temperature using real time evolution of clas…