119699493
String-like excitations in quantum electrodynamics
A study is made of the evolution of string-like excitations of the gauge field (exponentials ordered along the contour of integration) in free quantum electrodynamics and in electrodynamics with static sources. It is shown that such excitations are unstable and are transformed after radiation of excess energy into the field of Coulomb sources. These results are compared with calculations in lattice quantum electrodynamics. It is also shown that in this case the strong-coupling method is not suitable for solving the confinement problem.
18210761
Quantum mechanics not on manifold
The free scalar field is studied on the Y-junction of three semi infinite axes which is the simplest example of a non-manifold space. It is shown that under an assumption that the junction point can not gain a macroscopic amount of energy and charge the transmission rules for this system uniquely follow from conservation of energy and charge. This result is also obtained in the discrete version of the model. Some alternative approaches to the problem based on quantum mechanics of Hamiltonian systems with constrains are discussed.
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.
119040808
Quantum mechanics and the cosmological constant
It is shown that in the model [3,4] of quantum mechanics besides probability amplitudes, the Planck constant and the Fock space, the cosmological constant also appear in the natural way. The Poisson brackets are generalized for the case of kinetics.
121712241
On non-local effects in strong interactions
Abstract The qualitative indications of non-locality in strong interactions are pointed out for two types of non-local theories.
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.
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