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11 257 (0,125s)

Result

Twisting versus bending in quantum waveguides

We make an overview of spectral-geometric effects of twisting and bending in quantum waveguides modelled by the Dirichlet Laplacian in an unbounded three-dimensional tube of uniform cross-section....

BE - Teoretická fyzika

  • 2008
  • D
Result

Ultrafast decay of femtosecond laser-induced grating in silicon-quantum-dot-based optical waveguides

Ultrafast decay of femtosecond laser-induced grating in silicon-quantum-dot-based optical waveguides...

BH - Optika, masery a lasery

  • 2008
  • Jx
Result

Classical versus quantum structure of the scattering probability matrix: Chaotic waveguides

The purely classical counterpart of the scattering probability matrix (SPM)|Sn,m|2 of the quantum scattering matrix S id defined for two/dimensional quantum waveguides for an arbitrarz number of propagating modes M......

BE - Teoretická fyzika

  • 2002
  • Jx
Result

Hilbert Space Operators in Quantum Physics

Theory of linear operators on Hilbert space, their spectral theory operator sets and algebras. Systematic explanation of the foundations of Quantum theory. The study of Schrödinger operators and application to quantum waveguides...

BE - Teoretická fyzika

  • 2008
  • B
Result

Lifshits Tails for Randomly Twisted Quantum Waveguides

We study the dependence of the Lifshits exponent on the decay rate of the single-site twisting at infinity for randomly twisted waveguides.

Applied mathematics

  • 2018
  • Jimp
  • Link
Result

Quantum Zeno and Anti-Zeno Effects in the Dynamics of Non-Degenerate Hyper-Raman Processes Coupled to Two Linear Waveguides

due to interaction with the probe waveguides via evanescent waves is viewed as quantum Zeno (anti-Zeno) effect. This study considers the two probe waveguidesThe effect of the presence of two probe waveguides on th...

Optics (including laser optics and quantum optics)

  • 2023
  • Jimp
  • Link
Result

Absolute continuity of the spectrum in a twisted Dirichlet-Neumann waveguide

Quantum waveguides with the shape of a planar infinite straight strip and combined Dirichlet and Neumann boundary conditions on the opposite half-lines of the boundary are considered. The absence of the point as well as of the singu...

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2020
  • Jimp
  • Link
Result

Geometrically induced spectral properties of soft quantum waveguides and layers

We present a review of recent results about a class of Schrodinger operators usually called soft quantum waveguides, with the focus on relations between their spectral properties and the geometry of the confinement. We also mention ...

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2024
  • Jimp
  • Link
Result

On the spectrum of curved quantum waveguides

We study the dependence of the spectrum of the Laplacian on the geometry of an infinite strip of constant width and the boundary conditions.

BE - Teoretická fyzika

  • 2005
  • Jx
Result

Distant Perturbation Asymptotics in Window-coupled Waveguides

We consider a pair of straight adjacent quantum waveguides of constant and in general of different widths coupled laterally by a pair of windows in the common boundary. We analyze the asymptotic behavior of the discrete spectrum....

BE - Teoretická fyzika

  • 2006
  • Jx
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