Journal: Lecture Notes in Physics

Abbreviation

Lect. notes phys.

Publisher

Springer

Journal Volumes

ISSN

1616-6361
0075-8450

Description

Filters

Reset filters

Search Results

Publications 1 - 10 of 19
  • Radio diagnostics of flare energy release
    Item type: Conference Paper
    Benz, Arnold O. (2003)
    Lecture Notes in Physics ~ Energy Conversion and Particle Acceleration in the Solar Corona
    The radio emission of flares at wavelengths from millimeter to decameter waves includes a large variety of emission processes. They can be considered as different diagnostic tools particularly suited for the analysis of non-thermal electron distributions, enhanced levels of various kinds of plasma waves and plasma phenomena. Incoherent gyrosynchrotron emission at millimeter and centimeter waves provides higher sensitivity for observing MeV electrons than existing hard X-ray (HXR) and gammaray satellites. Very intense coherent emissions are observed at wavelengths longer than about 10 cm, weaker ones from about 4 cm. They are caused by plasma instabilities driving various wave modes that in turn may emit observable radio waves. Particularly important are type III bursts, caused by electron beams exciting Langmuir waves. Their trace in the corona points back to the acceleration region of the electrons. Less known are radio emissions from trapped electrons driving loss-cone unstable waves. This is the interpretation usually given to decimetric type IV emission. These types of coherent radio emission give clues on the geometry and plasma parameters near the acceleration region. More speculative are emissions that are directly produced by the acceleration process. A possible group of such phenomena are narrowband, short peaks of emission. Narrowband spikes are seen sometimes at frequencies above the start of metric type III events. There is mounting evidence for the hypothesis that these spikes coincide with the energy release region. Much less clear and highly controversial is the situation for decimetric spikes, which are associated with HXR flares. More frequently than spikes, however, there is fluctuating broadband decimetric emission during the HXR phase of flares. The use of these coherent radio emissions as a diagnostic tool for the primary energy release requires a solid understanding of the emission process. At the moment we are still far away from an accepted theory. Only careful comparisons with complementary observations of energetic electrons and the thermal coronal background in EUV lines and soft X-rays can put coherent emissions into context and test the different scenarios. The comparison with HXR, millimeter and centimeter observations will be necessary to derive quantitative results on energy release. In combination with other wavelengths and their recent imaging capabilities, exciting new possibilities are now opening for radio diagnostics.
  • Ferrofluid Structure and Rheology
    Item type: Book Chapter
    Ilg, P.; Odenbach, S. (2009)
    Lecture Notes in Physics ~ Colloidal magnetic fluids : basics, development and application of ferrofluids
  • Quantum Key Distribution
    Item type: Monograph
    Wolf, Ramona (2021)
    Lecture Notes in Physics
    This textbook introduces the non-specialist reader to the concepts of quantum key distribution and presents an overview of state-of-the-art quantum communication protocols and applications. The field of quantum cryptography has advanced rapidly in the previous years, not least because with the age of quantum computing drawing closer, traditional encryption methods are at risk. The textbook presents the necessary mathematical tools without assuming much background, making it accessible to readers without experience in quantum information theory. In particular, the topic of classical and quantum entropies is presented in great detail. Furthermore, the author discusses the different types of quantum key distribution protocols and explains several tools for proving the security of these protocols. In addition, a number of applications of quantum key distribution are discussed, demonstrating its value to state-of-the-art cryptography and communication. This book leads the reader through the mathematical background with a variety of worked-out examples and exercises. It is primarily targeted at graduate students and advanced undergraduates in theoretical physics. The presented material is largely self-contained and only basic knowledge in quantum mechanics and linear algebra is required.
  • NanoShuttles
    Item type: Conference Paper
    Vogel, V.; Hess, H. (2007)
    Lecture Notes in Physics ~ Controlled nanoscale motion : Nobel Symposium 131
  • Non-centrosymmetric superconductors
    Item type: Edited Volume
    (2012)
    Lecture Notes in Physics
  • Models for polymeric and anisotropic liquids
    Item type: Monograph
    Kröger, Martin (2005)
    Lecture Notes in Physics
  • Adiabatic theorems and reversible isothermal processes
    Item type: Conference Paper
    Abou-Salem, Walid K.; Fröhlich, Jürg (2006)
    Lecture Notes in Physics ~ Mathematical physics of quantum mechanics : selected and refereed lectures from QMath9
  • A DNS study of structure and stability properties of intrusion fronts
    Item type: Conference Paper
    Härtel, Carlos (1999)
    Lecture Notes in Physics ~ Industrial and environmental applications of direct and large-Eddy simulation: Proceedings of a workshop held in Istanbul, Turkey, 5-7 August 1998
  • Initiation, evolution and global consequences of coherent structures in turbulent shear flows
    Item type: Conference Paper
    Fiedler, H.; Dziomba, B.; Mensing, P.; et al. (1981)
    Lecture Notes in Physics ~ The role of coherent structures in modelling turbulence and mixing : proceedings of the international conference; Madrid, June 25-27, 1980
  • Quantum probability theory and the foundations of quantum mechanics
    Item type: Book Chapter
    Fröhlich, Jürg; Schubnel, Baptiste (2015)
    Lecture Notes in Physics ~ The message of quantum science : attempts towards a synthesis
Publications 1 - 10 of 19