Güncel Gönderiler: Fen Fakültesi
Toplam kayıt 2379, listelenen: 1481-1500
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Oscillating and rotating boundary conditions in quantum mechanics
(IOP Publishing LTD, 2011)We consider a particle in an oscillating cavity and in a rotating cavity in the context of moving boundary problems in quantum physics. We use the multiple-scale analysis method to solve the Schrodinger equation subject ... -
PT symmetric Floquet topological phase in SSH model
(Elsevier Science BV, 2018)We consider periodically modulated Su-Schrieffer-Heeger (SSH) model with gain and loss. This model, which can be realized with current technology in photonics using waveguides, allows us to study Floquet topological ... -
Super Bloch oscillation in a PT symmetric system
(Elsevier Science BV, 2016)Wannier-Stark ladder in a PT symmetric system is generally complex that leads to amplified/damped Bloch oscillation. We show that a non-amplified wave packet oscillation with very large amplitude can be realized in a ... -
Discrete rogue waves in an array of waveguides
(Elsevier Science BV, 2015)We study discrete rogue waves in an array of nonlinear waveguides. We show that very small degree of disorder due to experimental imperfection has a deep effect on the formation of discrete rogue waves. We predict long-living ... -
Edge states at the interface of non-Hermitian systems
(Amer Physical Soc, 2018)Topological edge states appear at the interface of two topologically distinct Hermitian insulators. We study the extension of this idea to non-Hermitian systems. We consider PT-symmetric and topologically distinct non-Hermitian ... -
Self-acceleration in non-Hermitian systems
(Elsevier Science BV, 2017)We study self-acceleration in PT and non-PT symmetric systems. We find some novel wave effects that appear uniquely in non-Hermitian system. We explore self-accelerating waves with constant intensity and integrable ... -
Self-accelerating parabolic cylinder waves in 1-D
(Elsevier Science BV, 2016)We introduce a new self-accelerating wave packet solution of the Schrodinger equation in one dimension. We obtain an exact analytical parabolic cylinder wave for the inverted harmonic potential. We show that truncated ... -
Self-oscillating beams in a photonic lattice
(Epl Association, European Physical Society, 2016)We study self-acceleration in a parabolic tight-binding lattice and construct a self-accelerating wave packet in k-space. As opposed to accelerating Airy wave packets in free space, self-acceleration occurs in k-space and ... -
Majorana edge modes with gain and loss
(Amer Physical Soc, 2016)We consider a non-Hermitian generalization of the Kitaev model and study the existence of stable Majorana zero energy modes. We show that they exist in the limit of zero chemical potential even if balanced gain and loss ... -
Tetrakis[mu-4-(methylamino)benzoato-kappa O-2:O ']bis[(N,N-diethylnicotinamide-N-1)zinc(II)] dihydrate
(Int Union Crystallography, 2009)The title molecule, [Zn-2(C8H8NO2)(4)(C10H14N2O)(2)]center dot 2H(2)O, is a centrosymmetric binuclear complex, with two Zn-II ions [Zn center dot center dot center dot Zn' = 2.9301 (4) angstrom] bridged by four methylaminobenzoate ... -
Diaquabis(2-bromobenzoato-kappa O)bis(N,N-diethylnicotinamide-kappa N-1)nickel(II)
(Int Union Crystallography, 2009)In the monomeric centrosymmetric title Ni-II complex, [Ni(C7H4BrO2)(2)(C10H14N2O)(2)(H2O)(2)], the Ni-II ion is located on an inversion center. The asymmetric unit contains one 2-bromobenzoate ligand, one diethylnicotinamide ... -
Off-axis vortex in a rotating dipolar Bose-Einstein condensate
(IOP Publishing LTD, 2010)We consider a singly quantized off-axis straight vortex in a rotating dipolar ultracold gas in the Thomas-Fermi (TF) regime. We derive analytic results for small displacements and perform numerical calculations for large ... -
Stable topological edge states in a non-Hermitian four-band model
(Amer Physical Soc, 2018)We introduce a one-dimensional non-Hermitian four-band tight-binding lattice system. We find stable topological edge states protected by particle-hole and parity-time symmetries. We show that a topological phase appears ... -
Tetrakis[mu-4-(diethylamino)benzoato-kappa O-2:O ']bis[(N,N-diethylnicotinamide-kappa N-1)zinc(II)]
(Int Union Crystallography, 2009)In the centrosymmetric binuclear title complex, [Zn-2(C11H14NO2)(4)(C10H14N2O)(2)], the two Zn-II ions [Zn center dot center dot center dot Zn = 2.8874 (3) angstrom] are bridged by four 4-(diethylamino)benzoate (DEAB) ... -
Tetraaquabis(isonicotinamide-kappa N-1)cobalt(II) bis(4-formylbenzoate) dihydrate
(Int Union Crystallography, 2009)The asymmetric unit of the crystal structure of the title complex, [Co(C6H6N2O)(2)(H2O)(4)](C8H5O3)(2)center dot 2H(2)O, contains one-half of the complex cation with the Co-II ion located on an inversion center, a ... -
Tetraaquabis(isonicotinamide-kappa N-1)nickel(II) bis(4-formylbenzoate) dihydrate
(Int Union Crystallography, 2009)The asymmetric unit of the title complex, [Ni(C6H6N2O)(2)(H2O)(4)](C8H5O3)(2)center dot 2H(2)O, contains one-half of the complex cation with the Ni-II atom located on an inversion center, a 4-formylbenzoate (FB) counter-anion ... -
Diaquabis(2-bromobenzoato-kappa O)bis(nicotinamide-kappa N-1)nickel(II)
(Int Union Crystallography, 2009)The title Ni-II complex, [Ni(C7H4BrO2)(2)(C6H6N2O)(2)(H2O)(2)], is centrosymmetric. It contains two 2-bromobenzoate (BB) ligands, two nicotinamide (NA) ligands and two water molecules, all of them being monodentate. The ... -
Bis(mu-2-fluorobenzoato-1:2 kappa O-2:O ')(2-fluorobenzoato-1 kappa O-2,O ')(2-fluorobenzoato-2 kappa O)dinicotinamide-1 kappa N-1,2 kappa N-1-dizinc(II)-2-fluorobenzoic acid (1/1)
(Int Union Crystallography, 2009)The asymmetric unit of the title compound, [Zn-2(C7H4FO2)(4)(C6H6N2O)(2)]center dot C7H5FO2, consists of a binuclear Zn-II complex bridged by two carboxyl groups of 2-fluorobenzoate (FB) anions and a 2-fluorobenzoic acid ... -
Supramolecular cobalt(II)-pyridine-2,5-dicarboxylate complexes with isonicotinamide, 2-amino-3-methylpyridine and 2-amino-6-methylpyridine: Syntheses, crystal structures, spectroscopic, thermal and antimicrobial activity studies
(Elsevier Science Sa, 2010)The mer-[Co(pydca)(H(2)O)(3)(ina)]center dot H(2)O (1), (2a3mpyH)(2)[Co(pydca)(2)(H(2)O)(2)]center dot 2H(2)O (2) and (2a6mpyH)(2)[Co(pydca)(2)(H(2)O)(2)]center dot 2H(2)O (3) complexes (H(2)pydca: pyridine-2,5-dicarboxylic ... -
Novel boron compounds of 2,3-and 2,5-pyridinedicarboxylic acids
(Elsevier Science Sa, 2012)The (Hea)[B(ph)(2)(2,3-pydc)] (1) and (Hea)[B(ph)(2)(2,5-pydc)] (2) boron compounds (2,3-H(2)pydc = 2,3-pyridinedicarboxylic acid, 2,5-H(2)pydc = 2,5-pyridinedicarboxylic acid, Hea = ethanolammonium) were synthesized and ...
