In case of an anisotropic superconductor non-magnetic disorder leads eventually to pair breaking effect via Abrikosov–Gorkov formula [1, 2, 3, 4, 5], like for magnetic impurities, for any value of a coherence length ξ. By analogy to an isotropic s–wave pairing, for superconductors with an enough large coherence length ξ, the amplitude of paring potential |∆(ij)| tends be the same for all bonds ...

A modified Michelson interferometer is used to measure path-length resolved angular distributions of light backscattered by turbid media. The path length resolution is obtained by exploiting the coherence properties of a broadband source. The angular distribution is mapped out using a simple optical system to scan the angle at which the reference field intersects the detector plane. Angular sca...

We have fabricated NbSe3 structures with widths comparable to the Fukuyama-Lee-Rice phase-coherence length. For samples already in the two-dimensional pinning limit, we observe a crossover from twodimensional to one-dimensional collective pinning when the crystal width is less than 1.6 mm, corresponding to the phase-coherence length in this direction. Our results show that surface pinning is ne...

We found a novel dimensional transition in the vortex lattice of a finite-sized superconductor. The low-field dependence (with field applied parallel to the film plane) of the magnetization exhibits two maxima, which signal the transition from one to two dimensions. In one dimension the vortices line up along the film, and with increasing field their arrangement changes into a two-dimensional a...

In this paper propagation of combined laser beam through atmosphere is investigated. Laser beam is combined via lens array arrangement. Turbulence is considered as an affecting factor of atmosphere and its effects on transverse coherence length (Fried parameter), peak intensity, propagation efficiency, and spot size of the laser beam is investigated. Coherent and incoherent combined beam are co...

The large (10 2 − 10 5) and strongly temperature dependent resistive anisotropy η = (σ ab /σc) 1/2 of cuprates perhaps holds the key to understanding their normal state in-plane σ ab and out-of-plane σc conductivities. It can be shown that η is determined by the ratio of the phase coherence lengths ℓ i in the respective directions: σ ab /σc = ℓ 2 ab /ℓ 2 c. In layered crystals in which the out-...

We give the first systematic study on second order asymptotics of operational task coherence distillation with and without assistance. In unassisted setting, we introduce a variant randomness extraction framework where free incoherent operations are allowed before measurement extractors. then show that maximum number random bits extractable from given quantum state is precisely equal to coheren...