Results 61 to 70 of about 22,569 (248)
Chemistry – A European Journal, EarlyView.We report the synthesis bis(arylethynyl)naphtho‐ and anthraquinones via Rh(I)‐catalyzed [2 + 2 + 2] cycloaddition reactions. The substrate scope of both quinones and linked bis‐diynes was explored. Microwave irradiation remarkably enhanced yields.
Luana A. Machado +16 more
wiley +1 more source
Continuous variable quantum key distribution with two-mode squeezed states
, 2012 Quantum key distribution (QKD) enables two remote parties to grow a shared key which they can use for unconditionally secure communication [1]. The applicable distance of a QKD protocol depends on the loss and the excess noise of the connecting quantum ...
C Silberhorn +29 more
core +1 more source
Synchronously-pumped OPO coherent Ising machine: benchmarking and prospects [PDF]
, 2020 The coherent Ising machine (CIM) is a network of optical parametric oscillators (OPOs) that solves for the ground state of Ising problems through OPO bifurcation dynamics.
Englund, Dirk R. +6 more
core
Experimental determination of the degree of quantum polarisation of continuous variable states [PDF]
, 2012 We demonstrate excitation-manifold resolved polarisation characterisation of continuous-variable (CV) quantum states. In contrast to traditional characterisation of polarisation that is based on the Stokes parameters, we experimentally determine the ...
Christian Kothe +8 more
core +2 more sources
Asymptotic independence in more than two dimensions and its implications on risk management
Canadian Journal of Statistics, EarlyView.Abstract In extreme value theory, the presence of asymptotic independence signifies that joint extreme events across multiple variables are unlikely. Although well understood in a bivariate context, the concept remains relatively unexplored when addressing the nuances of simultaneous occurrence of extremes in higher dimensions.
Bikramjit Das, Vicky Fasen‐Hartmann
wiley +1 more source
Cascaded half-harmonic generation of femtosecond frequency combs in mid-IR [PDF]
, 2015 For the growing demand of frequency combs in mid-infrared (mid-IR), known as the "molecular fingerprint" region of the spectrum [1], down conversion of near-IR frequency combs through half- harmonic generation offers numerous benefits including high ...
Byer, Robert L. +3 more
core +1 more source
Field patterns in periodically modulated optical parametric amplifiers and oscillators
, 2007 Spatially localized and periodic field patterns in periodically modulated optical parametric amplifiers and oscillators are studied. In the degenerate case (equal signal and idler beams) we elaborate the systematic method of construction of the ...
Brazhnyi, V. A. +3 more
core +2 more sources
Experimental study of the spatial distribution of quantum correlations in a confocal Optical Parametric Oscillator [PDF]
, 2002 We study experimentally the spatial distribution of quantum noise in the twin beams produced by a type II Optical Parametric Oscillator operating in a confocal cavity above threshold.
Ducci, Sara +5 more
core +3 more sources
Mid‐Infrared Integrated Photonics: Material Platforms and Emerging Applications
Laser &Photonics Reviews, EarlyView.Mid‐infrared (MIR) integrated photonics enables advanced chemical and biological sensing through the unique absorption features of molecules in the 2–20 µm range. This review highlights recent material advances such as chalcogenide glasses, silicon, and graphene and explores MIR applications in environmental monitoring, medical diagnostics ...
Muhammad Ali Butt +2 more
wiley +1 more source
Organ donation during the COVID-19 pandemic
American Journal of Transplantation, 2020 The coronavirus disease 2019 (COVID‐19) pandemic is a rapidly changing circumstance with dramatic policy changes and universal efforts to deal with the initial crisis and minimize its consequences.
O. Ahmed +4 more
semanticscholar +1 more source