搜索结果: 1-15 共查到“物理学 tunneling”相关记录83条 . 查询时间(0.214 秒)
Hole digging in ensembles of tunneling molecular magnets
Quantum tunneling magnetic molecules monte carlo simulation tunnel lorentz line shape crystal
2014/12/20
The nuclear spin-mediated quantum relaxation of ensembles of tunneling magnetic molecules causes a “hole” to appear in the distribution of internal fields in the system. The form of this hole and its ...
Reply to “Comment on ‘Hole digging in ensembles of tunneling molecular magnets’ ”
Bias magnetization the molecular rotation the monte carlo simulation magnetization relaxation lattice
2014/12/20
Our work has argued for a particular scaling form governing the distribution M(ξ,t) of magnetization over bias ξ, for a system of dipolar-interacting molecular spins. This form, which was found in Mon...
Under-the-barrier dynamics in laser-induced relativistic tunneling
Under-the-barrier dynamics laser-induced relativistic tunneling Atomic Physics
2012/5/29
The tunneling dynamics in relativistic strong-field ionization is investigated with the aim to develop an intuitive picture for the relativistic tunneling regime. We demonstrate that the tunneling pic...
Simulation of spin-polarized scanning tunneling microscopy on complex magnetic surfaces: The case of a Cr monolayer on Ag(111)
spin-polarized scanning tunneling complex magnetic surfaces Cr monolayer Ag
2011/8/17
Abstract: We propose an atom-superposition-based method for simulating spin-polarized scanning tunneling microscopy (SP-STM) from first principles. Our approach provides bias dependent STM images in h...
Electromagnetic tunneling of obliquely-incident waves through a single-negative slab paired with a double-positive uniaxial slab
single-negative slab double-positive uniaxial slab
2011/9/2
We show that, under appropriate oblique-incidence and polarization conditions, the inherent opaqueness of a homogeneous, isotropic single-negative slab may be perfectly compensated (in the ideal lossl...
The Quillen metric, analytic torsion and tunneling for high powers of a holomorphic line bundle
Holomorphic line bundle determinant bundle analytic torsion supersymmetry quantum mechanics
2011/7/28
Let L be a line bundle over a compact complex manifold X (possibly non-Kahler) and denote by h_{L} and h_{X} fixed Hermitian metrics on L and TX, respectively. We generalize the asymptotics for the in...
Chiral tunneling in single and bilayer graphene
Chiral tunneling single-layer bilayer graphene its semiclassical theory
2011/7/28
Abstract: We review chiral (Klein) tunneling in single-layer and bilayer graphene and present its semiclassical theory, including the Berry phase and the Maslov index. Peculiarities of the chiral tunn...
Resonantly Enhanced Tunneling and Transport of Ultracold Atoms on Tilted Optical Lattices
Tunneling Ultracold Atoms Tilted Optical Lattices
2011/9/9
We investigate the resonantly enhanced tunneling dynamics of ultracold bosons loaded on a tilted 1-D optical lattice, which can be used to simulate a chain of Ising spins and associated quantum phase ...
We study the tunneling through delta and double delta potentials in fractional quantum mechanics. After solving the fractional Schr\"odinger equation for these potentials, we calculate the correspond...
Scaling and non-Abelian signature in fractional quantum Hall quasiparticle tunneling amplitude
non-Abelian signature quantum Hall quasiparticle tunneling amplitude
2010/12/27
We study the scaling behavior in the tunneling amplitude when quasiparticles tunnel along a straight path between the two edges of a fractional quantum Hall annulus. Such scaling behavior originates f...
State independence for tunneling processes through black hole horizons and Hawking radiation
State independence black hole horizons Hawking radiation
2010/12/27
Tunneling processes through black hole horizons have recently been investigated in the framework of WKB theory discovering interesting interplay with the Hawking radiation. In this paper we instead ad...
Charged fermions tunneling from accelerating and rotating black holes
Charged fermions tunneling accelerating rotating black holes
2010/12/24
We study Hawking radiation of charged fermions from accelerating and rotation black holes with electric and magnetic charges. We calculate the tunneling probabilities of incoming and outgoing fermioni...
Charged fermions tunneling from accelerating and rotating black holes
Charged fermions tunneling accelerating rotating black holes
2010/12/24
We study Hawking radiation of charged fermions from accelerating and rotation black holes with electric and magnetic charges. We calculate the tunneling probabilities of incoming and outgoing fermion...
State independence for tunneling processes through black hole horizons and Hawking radiation
State independence black hole horizons Hawking radiation
2010/12/20
Tunneling processes through black hole horizons have recently been investigated in the framework of WKB theory discovering interesting interplay with the Hawking radiation. In this paper we instead ad...
Metamaterial inspired perfect tunneling in semiconductor heterostructures
Metamaterial inspired perfect semiconductor heterostructures
2010/11/24
In this paper we are using formal analogy of electromagnetic wave equation and Schr¨odinger equatio in order to study the phenomenon of perfect tunneling (tunneling with unitary transmittance)in 1D se...