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most citedPlanck 2015 results. XIII. Cosmological parameters

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hep-th1993★ 113 cited

gravity and matrix models. I. gravity

A. Mironov

Some approaches to gravity developed for the last years are reviewed. They are physical (Liouville) gravity, topological theories and matrix models. A special attention is pai…

hep-th1993★ 138 cited

Generalized Kazakov-Migdal-Kontsevich Model: group theory aspects

S. Kharchev, A. Marshakov, A. Mironov +1

The Kazakov-Migdal model, if considered as a functional of external fields, can be always represented as an expansion over characters of group. The integration over "matter fi…

hep-th1993★ 12 cited

On the Heat Kernel in Covariant Background Gauge

E. I. Guendelman, A. Leonidov, V. Nechitailo +1

The first three coefficients in an expansion of the heat kernel of a nonminimal nonabelian kinetic operator taken in an arbitrary background gauge in arbitrary space-time dimension…

hep-th1993★ 44 cited

New relations for two-dimensional Hermite polynomials

V. V. Dodonov, V. I. Man'ko

The effective formulas reducing the two-dimensional Hermite polynomials to the classical (one-dimensional) orthogonal polynomials are given. New one-parameter generating functions…

chao-dyn1993

Classical and Quantum Chaos from Continuous Quantum Measurements

Michael Mensky

The method of restricted path integrals allows one to effectively consider continuous (prolonged in time) measurements of quantum systems. Monitoring of the system coordinates is s…

hep-th1993★ 25 cited

Thermal noise and oscillations of photon distribution for squeezed and correlated light

V. V. Dodonov, O. V. Man'ko, V. I. Man'ko +1

The oscillations of photon distribution function for squeezed and correlated light are shown to decrease when the temperature increases.The influence of the squeezing parameter and…

cond-mat1993★ 53 cited

Parity Effects on Electron Tunneling through Small Superconducting Islands

Gerd Schön, A. D. Zaikin

Single electron tunneling into small superconducting islands is sensitive to the gap energy of the excitations created in the process and, hence, depends on the electron number par…

astro-ph1993★ 40 cited

Quantum Electrodynamics in the Gravitational Field of a Cosmic String

Vladimir Skarzhinsky, Diego Harari, Ulf Jasper

We evaluate the cross section for electron-positron pair production by a single high energy photon in the space-time of a static, straight cosmic string. Energy and momentum conser…

astro-ph1993★ 12 cited

Non-Linear Clustering in the Cold+Hot Dark Matter Model

S. A. Bonometto, S. Borgani, S. Ghigna +2

We use high resolution PM N-body simulations to follow the development of non-linear clustering in a flat Universe, dominated by Cold + Hot Dark Matter (CHDM) with 60% of CDM, 30%…

hep-th1993★ 18 cited

The MFF Singular Vectors in Topological Conformal Theories

A. M. Semikhatov

It is argued that singular vectors of the topological conformal (twisted ) algebra are identical with singular vectors of the Kac--Moody algebra. An arbitrary matter t…

hep-th1993★ 20 cited

Representations of the -Extended Heisenberg Algebra and Relations Between Knizhnik-Zamolodchikov Equations and Quantum Calogero Model

Lars Brink, Mikhail A. Vasiliev

We discuss lowest-weight representations of the -Extended Heisenberg Algebras underlying the -body quantum-mechanical Calogero model. Our construction leads to flat derivat…

hep-th1993★ 70 cited

Planckian Energy Scattering and Surface Terms in the Gravitational Action

M. Fabbrichesi, R. Pettorini, G. Veneziano +1

This is a revised version of our previous paper by the same name and preprint number. It contains various changes, two figures and new results in sect.5. We propose a new approach…

hep-th1993★ 29 cited

On the multilevel generalization of the field--antifield formalism

I. A. Batalin, I. V. Tyutin

The multilevel geometrically--covariant generalization of the field--antifield BV--formalism is suggested. The structure of quantum generating equations and hypergauge conditions i…

gr-qc1993★ 260 cited

Dynamical Origin of the Entropy of a Black Hole

Valery Frolov, Igor Novikov

Modes of physical fields which are located inside a horizon and which cannot be observed by a distant observer are identified with dynamical degrees of freedom of a black hole. A n…

hep-th1993★ 6 cited

On the equivalence between the unified and standard versions of constraint dynamics

I. A. Batalin, I. V. Tyutin

The structure of physical operators and states of the unified constraint dynamics is studied. The genuine second--class constraints encoded are shown to be the superselection opera…

hep-th1993★ 102 cited

Multidimensional Hermite polynomials and photon distribution for polymode mixed light

V. V. Dodonov, O. V. Man'ko, V. I. Man'ko

For N-mode light described by the Wigner function of generic Gaussian form the photon distribution function is obtained explicitly and expressed in terms of Hermite polynomial of $…

hep-th1993★ 111 cited

Photon distribution for one mode mixed light with generic gaussian Wigner function

V. V. Dodonov, O. V. Man'ko, V. I. Man'ko

For one-mode light described by the Wigner function of generic Gaussian form the photon distribution function is obtained explicitly and expressed in terms of Hermite polynomials o…

hep-th1993★ 7 cited

Unified Constrained Dynamics

I. A. Batalin, I. V. Tyutin

The unified constrained dynamics is formulated without making use of the Dirac splitting of constraint classes. The strengthened, completely--closed, version of the unified constra…

hep-th1993★ 29 cited

Higher spins dynamics in the closed string theory

I. L. Buchbinder, E. S. Fradkin, S. L. Lyakhovich +1

The general -model-type string action including both massless and massive higher spins background fields is suggested. Field equations for background fields are followed from th…

hep-th1993★ 11 cited

q-Deformed Brownian Motion

V. I. Man'ko, R. Vilela Mendes

Brownian motion may be embedded in the Fock space of bosonic free field in one dimension.Extending this correspondence to a family of creation and annihilation operators satisfying…

hep-th1993★ 13 cited

Integrable structures in matrix models and physics of 2d-gravity

A. Marshakov

A review of the appearence of integrable structures in the matrix model description of -gravity is presented. Most of ideas are demonstrated at the technically simple but ideol…

hep-th1993★ 21 cited

On pq-duality and explicit solutions in gravity models

S. Kharchev, A. Marshakov

We study the integral representation for the exact solution to nonperturbative string theory. A generic solution is determined by two functions and which beh…

hep-th1993★ 34 cited

Supersymmetry and a Time-Dependent Landau System

V. Alan Kostelecký, V. I. Man'ko, Michael Martin Nieto +1

A general technique is outlined for investigating supersymmetry properties of a charged spin-$\half$ quantum particle in time-varying electromagnetic fields. The case of a time-var…

hep-th1993★ 7 cited

Gauge Fields Condensation at Finite Temperature

O. K. Kalashnikov

The two-loop effective action for the SU(3) gauge model in a constant background field is recalculated for a gauge with an arbitrary -paramet…