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相关论文: Tilting instability in negative-\gamma rotating nu…

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By employing a local two-fluid theory, we investigate an obliquely propagating electromagnetic instability in the lower hybrid frequency range driven by cross-field current or relative drifts between electrons and ions. The theory…

天体物理学 · 物理学 2007-05-23 Hantao Ji , Russell Kulsrud , William Fox , Masaaki Yamada

The crystalline or liquid character of the downward cusp states in N-electron parabolic quantum dots (QD's) at high magnetic fields is investigated using conditional probability distributions obtained from exact diagonalization. These…

介观与纳米尺度物理 · 物理学 2009-11-10 Constantine Yannouleas , Uzi Landman

We use time-evolutions of the linear perturbation equations to study the oscillations of rapidly rotating neutrons stars. Our models account for the buoyancy due to composition gradients and we study, for the first time, the nature of the…

天体物理学 · 物理学 2009-11-13 A. Passamonti , B. Haskell , N. Andersson , D. I. Jones , I. Hawke

We have performed a linear pulsational stability survey of 6 series of long period variable models with M=1.0 Msun, L=3000 - 8000Lsun, and (X,Z)= (0.700,0.020),(0.735,0.005). The dynamic and thermodynamic couplings between convection and…

天体物理学 · 物理学 2009-10-30 D. R. Xiong , L. Deng , Q. L. Cheng

We consider torsional oscillations that are trapped in a layer of spherical-hole (bubble) nuclear structure, which is expected to occur in the deepest region of the inner crust of a neutron star. Because this layer intervenes between the…

高能天体物理现象 · 物理学 2016-12-06 Hajime Sotani , Kei Iida , Kazuhiro Oyamatsu

The rotating nuclei represent one of most interesting subjects for theoretical and experimental studies. They open a new dimension of nuclear landscape, namely, spin direction. Contrary to the majority of nuclear systems, their properties…

核理论 · 物理学 2016-04-27 A. V. Afanasjev

We investigate the Coulomb excitation of low-lying states of unstable nuclei in intermediate energy collisions ($E_{lab}\sim10-500$ MeV/nucleon). It is shown that the cross sections for the $E1$ and $E2$ transitions are larger at lower…

核理论 · 物理学 2008-11-26 C. A. Bertulani , G. Cardella , M. De Napoli , G. Raciti , E. Rapisarda

The recently reported wobbling bands in $^{135}$Pr are investigated by the collective Hamiltonian, in which the collective parameters, including the collective potential and the mass parameter, are respectively determined from the tilted…

核理论 · 物理学 2016-11-15 Q. B. Chen , S. Q. Zhang , J. Meng

We study linear perturbations of classically stable Q-balls in theories admitting analytic solutions. Although the corresponding boundary value problem is non-Hermitian, the analysis of perturbations can also be performed analytically in…

高能物理 - 理论 · 物理学 2018-12-05 A. Kovtun , E. Nugaev , A. Shkerin

We study the stability of charged rotating black holes in a consistent truncation of Type $IIB$ Supergravity on $AdS_5 \times S^5$ that degenerate to extremal black holes with zero entropy. These black holes have scaling properties between…

高能物理 - 理论 · 物理学 2015-06-12 Micha Berkooz , Anna Frishman , Amir Zait

We extend the classical Landau theory for rotating nuclei and show that the backbending in 162Yb, that comes about as a result of the two-quasiparticle alignment, is identified with the second order phase transition. We found that the…

核理论 · 物理学 2009-05-14 R. G. Nazmitdinov , J. Kvasil

We report a solution of the tilted-axis cranked HFB equation for $^{164}$Hf, which shows wobbling motion coupled to gamma vibration at high spin ($J\simeq 60\hbar$). Possible anharmonicity and splitting of energy levels are also discussed…

核理论 · 物理学 2007-05-23 Makito Oi , Philip M. Walker

A new interpretation for the wobbling bands in the even-odd Lu isotopes is given within a particle-triaxial rotor semi-classical formalism. While in the previous papers the bands TSD1, TSD2, TSD3 and TSD4 are viewed as the ground, one, two…

核理论 · 物理学 2020-01-29 A. A. Raduta , R. Poenaru , C. M. Raduta

A shape evolution of 162,164Yb in yrast states is traced using the self-consistent Skyrme Hartree-Fock calculations. We found that nonaxial octupole deformations (in particular, Y_{31} term) become favorable at large rotational frequencies…

核理论 · 物理学 2010-11-05 R. G. Nazmitdinov , J. Kvasil , A. Tsvetkov

Asteroids and comets dissipate energy when they rotate about the axis different from the axis of the maximal moment of inertia. We show that the most efficient internal relaxation happens at the double frequency of body's tumbling.…

天体物理学 · 物理学 2016-08-30 Michael Efroimsky , A. Lazarian

We study the effects of rotation on the torsional modes of oscillating relativistic stars with a solid crust. Earlier works in Newtonian theory provided estimates of the rotational corrections for the torsional modes and suggested that they…

广义相对论与量子宇宙学 · 物理学 2008-11-26 M. Vavoulidis , A. Stavridis , K. D. Kokkotas , H. Beyer

The coupling of the high-lying dipole mode to the low-lying quadrupole modes for the case of deformed gamma-unstable nuclei is studied. Results from the geometrical model are compared to those obtained within the dipole boson model.…

核理论 · 物理学 2009-11-06 C. E. Alonso , M. V. Andres , J. M. Arias , E. G. Lanza , A. Vitturi

We present experimental observations and numerical simulations of a wrinkling instability that occurs at sufficiently high strain rates in the trembling regime of vesicle dynamics in steady linear flow. Spectral and statistical analysis of…

软凝聚态物质 · 物理学 2014-07-11 Michael Levant , David Abreu , Udo Seifert , Victor Steinberg

\gamma-softness in atomic nuclei is investigated in the framework of energy density functionals. By mapping constrained microscopic energy surfaces for a set of representative non-axial medium-heavy and heavy nuclei to a Hamiltonian of the…

核理论 · 物理学 2015-05-30 K. Nomura , N. Shimizu , D. Vretenar , T. Niksic , T. Otsuka

We investigate the spin dynamics in the superconducting phase of UTe$_{2}$ by triple-axis inelastic neutron scattering on a single crystal sample. At the wave-vector $\bf{k_1}$=(0, 0.57, 0), where the normal state antiferromagnetic…

强关联电子 · 物理学 2021-11-03 S. Raymond , W. Knafo , G. Knebel , K. Kaneko , J. -P. Brison , J. Flouquet , D. Aoki , G. Lapertot