On the cylindrically symmetric Einstein-Vlasov system
For the cylindrically symmetric ''asymptotically flat'' Einstein equations in the case of electro-vacuum it is known that solutions exist globally
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Darkholes: Nicer than blackholes - with a bright side, too (Does energy produce gravity?)
The geometry of three-dimensional space guides the search for a better model than the blackhole with its unwelcome singularity. An
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On a Regularity Theorem for Solutions of the Spherically Symmetric Einstein-Vlasov-Maxwell System
Using an estimate, we prove that if solution of the spherically symmetric Einstein-Vlasov-Maxwell system develops a singularity at all time,
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The General Self-dual solution of the Einstein Equations
We obtain the most general explicit (anti)self-dual solution of the Einstein equations. We find that any (anti)self-dual solution can be
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Spontaneously broken, local Z$_2$ symmetry and the anatomy of a lepton
In the framework of the gauge symmetry ${SU(2)}_{\tiny{CMB}}\times {SU(2)}_{\tiny{e}}\times {SU(2)}_{\tinyμ}\times {SU(2)}_{\tinyτ}$ we provide a microscopic argument why a spontaneously broken,
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Vortex Stability in a Trapped Bose Condensate
A vortex in a trapped Bose-Einstein condensate can experience at least two types of instabilities. (1). Macroscopic hydrodynamic motion of
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On energy-momentum tensors of gravitational field
Several energy-momentum "tensors" of gravitational field are considered and compared in the lowest approximation. Each of them together with energy-momentum
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Space- and Time-Like Superselection Rules in Conformal Quantum Field Theory
In conformally invariant quantum field theories one encounters besides the standard DHR superselection theory based on spacelike (Einstein-causal) commutation relations
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X-ray study of the NGC 383 group of galaxies and the source 1E0104+3153
(abridged) We present results from an analysis of the X-ray properties of the NGC 383 galaxy group based on ROSAT
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Parametric Resonance Phenomena in Bose-Einstein Condensates: Enhanced Quantum Tunneling of Coherent Matter Pulses
We investigate the quantum tunneling of a Bose-Einstein condensate confined in a optical trap. We show that periodic pulses of
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Time-Dependent Trapping of Solitons in Bose-Einstein Condensates
We study the influence of a time-dependent potential on the motion of solitons in a quasi one-dimensional Bose-Einstein condensate by
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Effects of collisions against thermal impurities in the dynamics of a trapped fermion gas
We present a theoretical study of the dynamical behavior of a gas made of ultracold fermionic atoms, which during their
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Cosmic Strings and Closed Time-Like Curves in Teleparallel Gravity
Closed Time-like curves (CTC) in Cosmic strings in teleparallel $T_{4}$ gravity are forbidden.This result shown here in $T_{4}$ was shown
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d-Wave bipolaronic stripes and two energy scales in cuprates
There is strong experimental evidence for pairing of polaronic carriers in the normal state, two distinct energy scales, d-wave superconducting
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Cosmology, Black Holes and Shock Waves Beyond the Hubble Length
We construct exact, entropy satisfying shock wave solutions of the Einstein equations for a perfect fluid which extend the Oppeheimer-Snyder
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X-ray observations of the interacting system Arp 284
We discuss the X-ray properties of the interacting system Arp 284, consisting of the active nuclear starburst galaxy NGC 7714
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General Birkhoff's Theorem
Space-time is spherically symmetric if it admits the group of SO(3) as a group of isometries,with the group orbits spacelike
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The Gravitational Field of Massive Non-Charged Point Source in General Relativity
Utilizing various gauges of the radial coordinate we give a description of static spherically symmetric space-times with point singularity at
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Gravitational Field of Massive Point Particle in General Relativity
Utilizing various gauges of the radial coordinate we give a description of static spherically symmetric space-times with point singularity at
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