122065137
String-like excitations in QED
The evolution of string-like excitations of fields (exponential line integrals) in free QED and in QED with static sources is investigated. It is shown that these excitations are not stable. They break down into electromagnetic radiation and the Coulomb field. The results are compared with calculations in the lattice QED.
121990400
Integrals over a Grassmann algebra
125172107
THE PHASE SPACE STRUCTURE OF GAUGE THEORIES AND QUASICLASSICAL DESCRIPTION
122556456
Quantization of the electromagnetic field
The question of a canonical quantization of the electromagnetic field as a system with two primary constraints is analyzed. Attention is focused on the following aspects of the problem: 1) the conditions on physical states; 2) the "old" and "new" Gupta formalisms; 3) the interpretation of the operators , ; 4) the vacuum in quantum electrodynamics. The starting point for the analysis is Dirac's quantization recipe for systems with constraints. It is shown that the Fermi formalism with a condition on the physical states is completely correct.
119982960
On physics at Planck distances: Quantum mechanics
The nature of quantum description is clarified. It is shown that complex-valued probability amplitudes are admissible within classical Hamiltonian mechanics. According to standard probability theory, such a description is always possible. The case of a spherical phase space is considered. It is shown that, in such a classical theory, there appears a universal constant that has dimensions of action (h), as well as Fock space and all attributes of quantum mechanics. Excitations of a chain of such systems are described by the equations of quantum mechanics with a correct normalization condition. It is shown that an answer to the question of what a particle and its wave function are is provided by quantum field theory (these are a single-particle field excitation and a function that describes it). Experiments are proposed that would make it possible to solve the problem of the physical nature of the wave function.
125513787
On the Forces between nucleons and hyperons according to meson theory
59131649
Variation of electric charge on prototype of fused silica test mass of gravitational wave antenna
Abstract Results of long-term measurements of electric charge located on the fused silica test mass suspended by fused silica fibers are presented. The charge was measured by means of the capacitive probe placed in the vicinity of the oscillating test mass end face. The continuous rise of electric charge was observed after the vacuum chamber evacuation when the initial charge density was of order of 10 −14  C/cm 2 . Rare large jumps of electric charge and synchronous jumps of the test mass oscillation amplitude were observed as well. The jumps of the amplitude may be interpreted as a result of the additional damping. Possible cause of the electric charge variations associated with the cosmic ray effect is discussed. The charge variations may produce the excess noise in interferometric gravitational wave detectors.
136742334
MEASUREMENTS OF ELECTRICAL CHARGE DISTRIBUTION VARIATIONS ON FUSED SILICA