With the realization of coherent, laserlike atoms in the form of Bose-Einstein condensates it has become possible to explore matter-wave amplification, a process in which the number of atoms in a quantum state is amplified due to bosonic stimulation. Stimulation has been observed in the formation of condensates [1,2] and, more directly, has been used to realize coherent matter-wave amplifiers [...

Violations of Lorentz transformation for space-time scales render corrections to relativistic energy-momentum relations and vice versa. Some recent articles[1-31 on tests of the special theory of relativity (STR) were motivation to write down a result obtained several years ago: thft the transformation properties of intrinsic space and time scales depend on the dispersion relation (that is the ...

The upsurge of interest in the nature of water adjacent to hydrophobic liquids is due in part to the growing appreciation for its unique characteristics for supporting chemical synthesis, nanoparticle assembly, oil remediation, and a host of other chemical separation processes.1,2 The important characteristics of these interfaces that lend themselves to these applicationssmolecular orientation,...

We perform a systematic WKB expansion to all orders for a one–dimensional system with potential V (x) = U0/ cos 2 (αx). We are able to sum the series to the exact energy spectrum. Then we show that any finite order WKB approximation fails to predict the individual energy levels within a vanishing fraction of the mean energy level spacing. PACS numbers: 03.65.-w, 03.65.Ge, 03.65.Sq Submitted to ...

In antiferromagnetic Ising-like chains, internal modes are expected to occur in the soliton fluctuations. For the case S = 1/2, it is shown that they correspond to precessions of the spins inside the solitons. Fkcent Soliton Magnetic Resonance experiments performed on the compound CsCoC13 agree with this description. In 1983, Haldane [I] has established that, in antiferromagnetic (AF) Ising-lik...

In the framework of the magnetar model for the Soft Gamma Repeaters and Anomalous X-ray Pulsars, we consider the structure of neutron star magnetospheres threaded by large-scale electrical currents. We construct self-similar, force-free equilibria under the assumption of axisymmetry and a power law dependence of magnetic field on radius, B ∝ r−(2+p). A large-scale twist of the field lines softe...

All existing data on neutrino oscillations (including those from the LSND experiment) imply a four neutrino scheme with six different allowed mass patterns. Some of the latter are shown to be disfavored by using a conservative upper bound on the ββ0ν nuclear decay rate, if neutrinos are assumed to be Majorana particles. Comparisons are also made with restrictions from tritium β-decay and cosmol...

A light neutral Higgs boson in the framework of the general two Higgs doublet model (2HDM) is not excluded by existing data. We point out that it can be looked for at the proposed low energy γγ collider. Failure to detect one may lead to important limits on the parameters of the general 2HDM. [email protected] [email protected] Supported in part by grants from Polish Committee for Scientif...

QED with N species of massive fermions on a circle of circumference L is analyzed by bosonization. The problem is reduced to the quantum mechanics of the 2N fermionic and one gauge field zero modes on the circle, with nontrivial interactions induced by the chiral anomaly and fermions masses. The solution is given for N = 2 and fermion masses (m) much smaller than the mass of the U(1) boson with...

We investigate the normal polarization induced by bending of graphite shells, which microscopically occurs because of a shift in sp hybridization at each atomic site. Based on a rehybridization model we analytically estimate the dependence on curvature of electronic charge spill into convex region. We further performed DFT calculations and extract the radial atomic dipole by direct electronic c...