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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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122 papers · 1 filter
Backward spin polarizability of the proton
M. Camen, K. Kossert, F. Wissmann +21
Using the Mainz NaI(Tl) detector and the segmented Göttingen recoil detector SENECA in coincidence, Compton scattering by the proton at …
Properties of Cosmic Ray Interactions at PeV Energies
A. D. Erlykin, A. W. Wolfendale
An analysis has been made of the present situation with the high energy hadron-nucleus and nucleus-nucleus interaction models. As is already known there are inconsistencies in the…
Tomography of multimode quantum systems with quadratic Hamiltonians and multivariable Hermite polynomials
V. I. Man'ko, V. A. Sharapov, E. V. Shchukin
The systems with multimode nonstationary Hamiltonians quadratic in position and momentum operators are reviewed. The tomographic probability distributions (tomograms) for the Fock…
Nonlocal Extension of the Borchers Classes of Quantum Fields
M. A. Soloviev
We formulate an equivalence relation between nonlocal quantum fields, generalizing the relative locality which was studied by Borchers in the framework of local QFT. The Borchers c…
Lorentz-covariant ultradistributions, hyperfunctions, and analytic functionals
M. A. Soloviev
We generalize the theory of Lorentz-covariant distributions to broader classes of functionals including ultradistributions, hyperfunctions, and analytic functionals with a tempered…
Classical and Quantum-like approaches to Charged-Particle Fluids in a Quadrupole
S. De Nicola, R. Fedele, V. I. Man'ko
A classical description of the dynamics of a dissipative charged-particle fluid in a quadrupole-like device is developed. It is shown that the set of the classical fluid equations…
Tomographic map within the framework of star-product quantization
Olga V. Man'ko, Vladimir I. Man'ko, Giuseppe Marmo
Tomograms introduced for the description of quantum states in terms of probability distributions are shown to be related to a standard star-product quantization with appropriate ke…
Alternative commutation relations, star products and tomography
Olga V. Man'ko, V. I. Man'ko, G. Marmo
Invertible maps from operators of quantum obvservables onto functions of c-number arguments and their associative products are first assessed. Different types of maps like Weyl-Wig…
Relativity, Causality, Locality, Quantization and Duality in the Invariant Generalized Space-Time
M. A. Vasiliev
We analyze properties of the Sp(2M) conformally invariant field equations in the recently proposed generalized $\half M(M+1)$-dimensional space-time $\M_M$ with matrix coordinates.…
Excitation of Resonators by Electron Beams
E. G. Bessonov, Yukio Shibata, Satoshi Sasaki +2
Elements of a vector theory of open resonators and experiments on excitation of a fundamental mode with transverse and longitudinal polarization in such resonators are discussed.
Parton and dipole approaches in QCD
I. M. Dremin, P. Edén
Here, we discuss QCD predictions on multiplicities in parton and dipole approaches. The most general treatment is based on the notion of the generating functions. The generating fu…
Gauge stability of 3+1 formulations of General Relativity
A. M Khokhlov, I. D. Novikov
We present a general approach to the analysis of gauge stability of 3+1 formulations of General Relativity (GR). Evolution of coordinate perturbations and the corresponding perturb…
Quantum interference and supercurrent in multiple-barrier proximity structures
Artem V. Galaktionov, Andrei D. Zaikin
We analyze an interplay between the proximity effect and quantum interference of electrons in hybrid structures superconductor-normal metal-superconductor which contain several ins…
Comment on "Absence of electron dephasing at zero temperature"
Dmitri S. Golubev, Andrei D. Zaikin, Gerd Schön
The recent claim by Kirkpatrick and Belitz (cond-mat/0111398) that Ward identities could be used to prove the absence of electron dephasing at T=0 contains serious flaws. These aut…
Constraint Reorganization Consistent with the Dirac Procedure
D. M. Gitman, I. V. Tyutin
The way of finding all the constraints in the Hamiltonian formulation of singular (in particular, gauge) theories is called the Dirac procedure. The constraints are naturally class…
Polynomial Lie algebra methods in solving the second-harmonic generation model: some exact and approximate calculations
V. P. Karassiov, A. A. Gusev, S. I. Vinitsky
We compare exact and SU(2)-cluster approximate calculation schemes to determine dynamics of the second-harmonic generation model using its reformulation in terms of a polynomial Li…
Two-fermion bound states in the explicitly covariant Light-Front Dynamics
V. A. Karmanov, J. Carbonell, M. Mangin-Brinet
We develop a general method to construct two relativistic fermions bound states with a given , in the framework of the explicitly covariant light-front dynamics.
Stability of two-fermion bound states in the explicitly covariant Light-Front Dynamics
M. Mangin-Brinet, J. Carbonell, V. A. Karmanov
The covariant light-front equations have been solved exactly for a two fermion system with different boson exchange ladder kernels. We present a method to study the cutoff dependen…
An example of simple Lie superalgebra with several invariant bilinear forms
S. E. Konstein
The associative superalgebra A with two-dimensional space of supertraces is presented. It is shown that (i) it is simple, (ii) its commutant [A, A} is a simple Lie superalgebra and…
Type IIB Green-Schwarz superstring in plane wave Ramond-Ramond background
R. R. Metsaev
We construct the covariant -symmetric superstring action for type superstring on plane wave space supported by Ramond-Ramond background. The action is defined as a 2d sigm…
Single-spin azimuthal asymmetry in exclusive electroproduction of pi^+ mesons
HERMES Collaboration, A. Airapetian
A single-spin asymmetry in the distribution of exclusively produced pi^+ mesons azimuthally around the virtual photon direction relative to the lepton scattering plane has been mea…
On formation rate of close binaries consisting of a super-massive black hole and a white dwarf
P. B. Ivanov
The formation rate of a close binary consisting of a super-massive black hole and a compact object (presumably a white dwarf) in galactic cusps is calculated with help of the so-ca…
Discovery of eta-mesic nuclei
G. A. Sokol, L. N. Pavlyuchenko
First experimental results from a photoreaction which confirm an existence of eta-mesic nuclei are discussed. The experiment was performed at the 1 GeV electron synchrotron of LPI.…
Deformed versus undeformed cat states encoding qubit
Stefano Mancini, Vladimir I. Man'ko
We study the possibility of exploiting superpositions of coherent states to encode qubit. A comparison between the use of deformed and undeformed bosonic algebra is made in connect…