Search Results - "Smilga, A. V"

Benign vs. malicious ghosts in higher-derivative theories by Smilga, A.V.

“…Interacting theories with higher-derivatives involve ghosts. They correspond to instabilities that display themselves at the classical level. We notice that…”
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Ghost-free higher-derivative theory by Smilga, A.V.

“…We present an example of the quantum system with higher derivatives in the Lagrangian, which is ghost-free: the spectrum of the Hamiltonian is bounded from…”
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Weak supersymmetry by Smilga, A.V.

“…We explore “weak” supersymmetric systems whose algebra involves, besides Poincare generators, extra bosonic generators not commuting with supercharges. This…”
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Taming the zoo of supersymmetric quantum mechanical models by Smilga, A.V.

“…A bstract We show that in many cases nontrivial and complicated supersymmetric quantum mechanical (SQM) models can be obtained from the simple model describing…”
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Multidimensional Dirac strings and the Witten index of SYMCS theories with groups of higher rank by Smilga, A. V.

“…A bstract We discuss generalized Dirac strings associated with a given Lie group. They live on C r ( r being the rank of the group). Such strings show up in…”
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Once more on the Witten index of 3d supersymmetric YM-CS theory by Smilga, A.V.

“…A bstract The problem of counting the vacuum states in the supersymmetric 3 d Yang- Mills-Chern-Simons theory is reconsidered. We resolve the controversy…”
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Chiral anomalies in higher-derivative supersymmetric 6D gauge theories by Smilga, A.V.

“…We show that the recently constructed higher-derivative 6D SYM theory involves internal chiral anomaly breaking gauge invariance. The anomaly is cancelled when…”
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Witten index in supersymmetric 3d theories revisited by Smilga, A. V.

“…We have performed a direct calculation of Witten index I in supersymmetric Yang-Mills Chern-Simons (SYMCS) 3 d theories. We do it in the framework of…”
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Renormalizable supersymmetric gauge theory in six dimensions by Ivanov, E.A., Smilga, A.V., Zupnik, B.M.

“…We construct and discuss a 6D supersymmetric gauge theory involving four derivatives in the action. The theory involves a dimensionless coupling constant and…”
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BPS and non-BPS domain walls in supersymmetric QCD with SU(3) gauge group by Smilga, A.V., Veselov, A.I.

“…We study the spectrum of the domain walls interpolating between different chirally asymmetric vacua in supersymmetric QCD with the SU(3) gauge group and…”
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Spin(7) and generalized SO(8) instantons in eight dimensions by Smilga, A. V

“…We present a simple compact formula for a topologically nontrivial map $S^7 \to Spin(7)$ associated with the fiber bundle $Spin(7) \stackrel{G_2}{\to} S^7$…”
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On exactly solvable higher-derivative systems by Smilga, A. V

“…We discuss exactly solvable systems involving integrals of motion with higher powers of momenta. If one of these integrals is chosen for the Hamiltonian, we…”
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Vacuum fields in the Schwinger model by SMILGA, A. V

“…We suggest a simple model of a vortex-antivortex liquid'' for the characteristic Euclidean gauge-field configuration giving the main contribution to the path…”
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On the relation between effective supersymmetric actions in different dimensions by Akhmedov, E. T., Smilga, A. V.

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Conformal properties of hypermultiplet actions in six dimensions by Ivanov, E.A., Smilga, A.V.

“…We consider scale-invariant interactions of 6D N = 1 hypermultiplets with the gauge multiplet. If the canonical dimension of the matter scalar field is assumed…”
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Group manifolds and homogeneous spaces with HKT geometry: the role of automorphisms by Smilga, A. V

“…We present a new simple proof of the fact that certain group manifolds as well as certain homogeneous spaces G/H of dimension 4n admit a quaternionic triple of…”
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Quark condensate in a magnetic field by Shushpanov, I.A., Smilga, A.V.

“…We study the dependence of quark condensate Σ on an external magnetic field. For weak fields, it rises linearly: Σ(H) = Σ(0) [1 + eH ln2 (16π 2F π 2) + …] . M…”
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Fractons in the twisted multiflavor Schwinger model by Shifman, MA, Smilga, AV

“…We consider two-dimensional QED with several fermion flavors on a finite spatial circle. We impose [ital flavor[minus]dependent] boundary conditions [psi][sub…”
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On exactly solvable ghost-ridden systems by Smilga, A.V.

“…•Almost all exactly solvable systems can be treated as systems involving benign ghosts.•One should only take one of the higher integrals of motion as the…”
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Physics of thermal QCD by Smilga, A.V.

“…We give a review of modern theoretical understanding of the physics of QCD at finite temperature. Three temperature regions are studied in detail. When the…”
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