125513787
On the Forces between nucleons and hyperons according to meson theory
14101091
On superselection rules for macroscopic objects
It is shown that for "ideal" macroscopic objects there are superselection rules forbidding superpositions of macroscopically distinguishable states of the objects. For real macroscopic bodies the notion of "weak" superselection rules is introduced. Some other aspects of the measurement problem are discussed.
115297485
Canonical transformations and Hamiltonian path integrals
The behavior of Hamiltonian path integrals under canonical transformations defined by a generator is investigated. The exact form of the kernel of the unitary operator which implements the quantum transformation is indicated. Equivalence rules are found (for the Hamiltonian formalism in the one-dimensional case) allowing one to get rid of the nonstandard terms in the action. It is shown that under canonical transformations the Hamiltonian path integral changes its form: in the transformed expression one cannot get along only with the corresponding classical Hamiltonian function.
123217168
Contribution of Space-like Intervals to the S-Matrix
It is proved that the usual asymptotic condition in the theory of quantized fields can be written down in a form which is equivalent to the statement that the space-like regions outside the cones of family (l) do not contribute to the S-Matrix. The asymptotic condition thus formulated makes it possible to set up a relativistically invariant scattering formalism for nonlocal fields which is analogous to the local field theory formalism. (auth)
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.
115242643
Stochastic processes in pseudoeuclidean space
136742334
MEASUREMENTS OF ELECTRICAL CHARGE DISTRIBUTION VARIATIONS ON FUSED SILICA
122762219
Investigation of effects associated with variation of electric charge on a fused silica test mass
Variation of electric charge on dielectric mirrors can produce excess noise in interferometric gravitational wave detectors. Charge located on the end face of a fused silica cylinder suspended as a torsion pendulum was measured using a multistrip capacitive probe. Two types of behaviour of this system were found in long-term measurements of the free decay pendulum amplitude and voltage from the probe. The first behaviour was characterized by the slow decrease of the pendulum amplitude corresponding to Q = (6–8) × 107 and the slow change of the averaged voltage from the probe corresponding to the charging of the test mass with a rate of the order of 104e/cm2 day. The second behaviour was characterized by the presence of jumps in the amplitude and the probe voltage in which these values changed several orders faster than in the first case. We did not find coincidences between these jumps and signals from plastic scintillators installed around the vacuum chamber to detect cosmic ray showers.