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[en] Bell's inequality violation (BIQV) for correlations of polarization is studied for a product state of two two-mode squeezed vacuum (TMSV) states. The violation allowed is shown to attain its maximal limit for all values of the squeezing parameter, ζ. We show via an explicit example that a state whose entanglement is not maximal allow maximal BIQV. The Wigner function of the state is non-negative and the average value of either polarization is nil
Journal
No abstract available
Source
China Inst. of Atomic Energy, Beijing (China); 180 p; ISBN 7-5022-1791-6; 
; 1997; p. 12
; 1997; p. 12
[en] The density and spin-density excitations in normal liquid 3He under applied pressure are described within a simple RPA model employing the Landau quasiparticle-quasihole interaction. Damping of the zero-sound mode to multi-quasiparticle-hole pairs is also included. The zero-sound mode energy is predicted to increase markedly with pressure while the quasiparicle-hole spectrum energy decreases with pressure. This increase coupled with a decrease in coherent neutron scattering intensity from liquid 3He suggests the zero-sound mode will be more difficult to observe at elevated pressures than at zero pressure. In the present model the pressure dependence of the excitations follows directly from the pressure dependence of the Landau quasiparticle-quasihole interaction. (auth)
Journal
Canadian Journal of Physics; ISSN 0008-4204; ; v. 58(3); p. 343-350
; v. 58(3); p. 343-350
[en] Charmed (and bottom) hypernuclei are studied in the quark-meson coupling (QMC) model. This completes systematic studies of charmed (Λ+c, Σc, Ξc), and Λb hypernuclei in the QMC model. Effects of the Pauli blocking due to the underlying quark structure of baryons, and the ΣcN-ΛcN channel coupling are phenomenologically taken into account at the hadronic level in the same way as those included for strange hypernuclei. Our results suggest that the Σ++c and Ξ+c hypernuclei are very unlikely to be formed, while the Λ+c, Ξ0c and Λb hypernuclei are quite likely to be formed. For the Σ+c hypernuclei, the formation probability is non-zero, though small. A detailed analysis is also made about the phenomenologically introduced Pauli blocking and channel coupling effects for the Σ0c hypernuclei
Journal
Journal of Physics. G, Nuclear and Particle Physics; ISSN 0954-3899; ; CODEN JPGPED; v. 30(12); p. 1765-1786
; CODEN JPGPED; v. 30(12); p. 1765-1786
[en] We give an eight-dimensional realization of the Clifford algebra in the five-dimensional Galilean covariant spacetime by using a dimensional reduction from the (5 + 1) Minkowski spacetime to the (4 + 1) Minkowski spacetime which encompasses the Galilean covariant spacetime. A set of solutions of the Dirac-type equation in the five-dimensional Galilean covariant spacetime is obtained, based on the Pauli representation of 8 x 8 gamma matrices. In order to find an explicit solution, we diagonalize the Klein-Gordon divisor by using the Galilean boost
Journal
Journal of Physics. A, Mathematical and Theoretical (Online); ISSN 1751-8121; ; v. 41(12); [28 p.]
; v. 41(12); [28 p.]
[en] We construct Lagrangians for non-relativistic massive fields with arbitrary spin. We use a Bargmann-Wigner construction, together with a Galilean covariant approach based on the reduction from an extended (4, 1) Minkowski manifold to the Galilean (3, 1) spacetime. Fierz identities are developed within this framework. By using symmetric spinor fields of rank 2 and rank 3, we can avoid the difficulty arising from the introduction of the minimal electromagnetic interaction in the Bargmann-Wigner wave equations. For fields with spin S, the minimal electromagnetic coupling thereby leads to the gyromagnetic ratio gS = 1/S
Journal
Journal of Physics. A, Mathematical and Theoretical (Online); ISSN 1751-8121; ; v. 40(5); p. 1117-1140
; v. 40(5); p. 1117-1140
[en] Periodically driven dynamics of a particle moving in the field of Coulomb plus confining potential is treated for one- and three-dimensional cases. The critical value of the external field strength at which chaotization will occur is evaluated analytically based on the resonance overlap criterion. An analysis of the phase-space dynamics is presented.
Journal
Physica Scripta (Online); ISSN 1402-4896; ; v. 78(6); [6 p.]
; v. 78(6); [6 p.]
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