524 citations · 3.4k across the 106 of their papers we have counts for
31 papers · 1 filter
The spectrum of states of Ba~nados-Teitelboim-Zanelli black hole formed by a collapsing dust shell
Alexander A. Andrianov, Danila Lyozin, Artem Starodubtsev
We perform canonical analysis of an action in which 2+1-dimensional gravity with negative cosmological constant is coupled to cylindrically symmetric dust shell. The resulting phas…
Chiral perturbation theory vs. Linear Sigma Model in a chiral imbalance medium
A. A. Andrianov, V. A. Andrianov, D. Espriu
We compare Chiral Perturbation Theory (ChPT) and the Linear Sigma Model (LSM) as realizations of low energy QCD for light mesons in a chirally imbalanced medium. The relations betw…
Integrable Minisuperspace Models with Liouville Field: Energy Density Self-Adjointness and Semiclassical Wave Packets
Alexander A. Andrianov, Chen Lan, Oleg O. Novikov +1
The homogeneous cosmological models with a Liouville scalar field are investigated in classical and quantum context of Wheeler-DeWitt geometrodynamics. In the quantum case of quint…
Quantum cosmology of the multi-field scalar matter: some exact solutions
Alexander A. Andrianov, Oleg O. Novikov, Chen Lan
We consider the gravity interacting with matter scalar fields and quantized in the minisuperspace approach in which the wave functional is described by the Wheeler-DeWitt equations…
Gravity effects on thick brane formation from scalar field dynamics
Alexander A. Andrianov, Vladimir A. Andrianov, Oleg O. Novikov
The formation of a thick brane in five-dimen\-sional space-time is investigated when warp geometries of type are induced by scalar matter dynamics and triggered by a thin-b…
CP violation in the models of fermion localization on a domain wall (brane)
Alexander A. Andrianov, Vladimir A. Andrianov, Oleg O. Novikov
A brief survey of fermion localization mechanism on a domain wall ("thick brane") generated by a topologically nontrivial vacuum configuration of scalar fields is given. The extens…
Universal Landau Pole
A. A. Andrianov, D. Espriu, M. A. Kurkov +1
Our understanding of quantum gravity suggests that at the Planck scale the usual geometry loses its meaning. If so, the quest for grand unification in a large non-abelian group nat…
Localization of scalar fields on self-gravitating thick branes
Alexander A. Andrianov, Vladimir A. Andrianov, Oleg O. Novikov
The model of a domain wall ("thick" brane) in noncompact five-dimensional space-time is considered with geometries of type generated by self-interacting scalar matter. The…
Nonlinear Supersymmetric Quantum Mechanics: concepts and realizations
A. A. Andrianov, M. V. Ioffe
Nonlinear SUSY approach to preparation of quantum systems with pre-planned spectral properties is reviewed. Possible multidimensional extensions of Nonlinear SUSY are described. Th…
Spectral action, Weyl anomaly and the Higgs-Dilaton potential
A. A. Andrianov, M. A. Kurkov, Fedele Lizzi
We show how the bosonic spectral action emerges from the fermionic action by the renormalization group flow in the presence of a dilaton and the Weyl anomaly. The induced action co…
Spectral Action from Anomalies
A. A. Andrianov, M. A. Kurkov, Fedele Lizzi
Starting from a theory of fermions moving in a fixed gauge and gravitational background we implement the scale invariance of the theory. Upon quantization the theory is anomalous b…
Bosonic Spectral Action Induced from Anomaly Cancelation
A. A. Andrianov, Fedele Lizzi
We show how (a slight modification of) the noncommutative geometry bosonic spectral action can be obtained by the cancelation of the scale anomaly of the fermionic action. In this…
Bare and Induced Lorentz and CPT Invariance Violations in QED
J. Alfaro, A. A. Andrianov, M. Cambiaso +2
We consider QED in a constant axial vector background (Æther). Further Lorentz invariance violations (LIV) might occur owing to radiative corrections. The phenomenology of this mod…
Two-field cosmological models and large-scale cosmic magnetic fields
A. A. Andrianov, F. Cannata, A. Yu. Kamenshchik +1
We consider two different toy cosmological models based on two fields (one normal scalar and one phantom) realizing the same evolution of the Bang-to-Rip type. One of the fields (p…
On the stability of thick brane worlds non-minimally coupled to gravity
A. A. Andrianov, Luca Vecchi
We analyze a class of 5D models where a 3 brane is generated by a bulk scalar field non minimally coupled to gravity. We show that perturbative stability of such branes is normally…
Dual oscillators and Quantum Pendulums: spectrum and correlators
A. A. Andrianov
We outline the nonlinear transformation in the path integral representation for partition function of O(N) symmetric oscillator systems bringing their duality to certain one-dimens…
Chiral dynamics from the hadronic string: general formalism
A. A. Andrianov, D. Espriu, A. Prats
QCD at long distances can be described by the chiral Lagrangian. On the other hand there is overwhelming evidence that QCD and all non-abelian theories admit an effective string de…
Brane world generation by matter and gravity
A. A. Andrianov, V. A. Andrianov, P. Giacconi +1
We present a non-compact (4 + 1) dimensional model with a local strong four-fermion interaction supplementing it with gravity. In the strong coupling regime it reveals the spontane…
Nonlinear Supersymmetry for Spectral Design in Quantum Mechanics
A. A. Andrianov, F. Cannata
Nonlinear (Polynomial, N-fold) SUSY approach to preparation of quantum systems with pre-planned spectral properties is reviewed. The full classification of ladder-reducible and irr…
Extended QCD(2) from dimensional projection of QCD(4)
Jorge Alfaro, Alexander A. Andrianov, Pedro Labraña
We study an extended QCD model in (1+1) dimensions obtained from QCD in 4D by compactifying two spatial dimensions and projecting onto the zero-mode subspace. We work out this mode…
Nonlinear supersymmetry in Quantum Mechanics: algebraic properties and differential representation
A. A. Andrianov, A. V. Sokolov
We study the Nonlinear (Polynomial, N-fold,...) Supersymmetry algebra in one-dimensional QM. Its structure is determined by the type of conjugation operation (Hermitian conjugation…
Hadronic string and chiral symmetry breaking
A. A. Andrianov, D. Espriu
We assume that QCD can be effectively described with string-like variables. The hadronic string is built over the chirally non-invariant QCD vacuum by means of the boundary interac…
Hadronic string, conformal invariance and chiral symmetry
J. Alfaro, A. A. Andrianov, L. Balart +1
While it is clear that in some kinematic regime QCD can be described by an effective (as opposed to fundamental) string theory, it is not at all clear how this string theory should…
Lorentz and CPT violations from Chern-Simons modifications of QED
A. A. Andrianov, P. Giacconi, R. Soldati
The possibility of a small modification of spinor Quantum Electro-Dynamics is reconsidered, in which Lorentz and CPT non-covariant kinetic terms for photons and fermions are presen…