Nuclear Spin Superradiance
نویسندگان
چکیده
Vyacheslav I. Yukalov. b. 1946. M.Sc., 1970, Ph.D., 1974, Moscow, Dr.Hab., 1999, Poznan, Dr.Sci., 2001, Moscow. First involved with NMR related research in 1984, after starting his work at JINR in Dubna, where together with an experimental group he took part in the first observation of pure nuclear spin superradiance. Then developed a microscopic theory of this phenomenon. Received the First Prize of Joint Institute for Nuclear Research for the discovery and theory of nuclear spin superradiance in 2001. Pubslished 250 papers and 4 books. Current research interests: developing the theory of spin superradiance for including novel materials, and for finding new applications.
منابع مشابه
2 00 1 Enhancement of Nuclear Spin Superradiance by Electron Resonator 1
Superradiance of nuclear spins is considered, when the nuclei interact via hyperfine forces with electrons of a ferromagnet. The consideration is based on a microscopic model. If the sample, coupled with a resonant electric circuit, possesses electronic magnetization, then the electron subsystem plays the role of an additional effective resonator, by enhancing the coupling between nuclear spins...
متن کاملOn the Superradiance of Spin-1 Waves in an Equatorial Wedge around a Kerr Hole.
Recently Van Putten has suggested that superradiance of magnetosonic waves in a toroidal magnetosphere around a Kerr black hole may play a role in the central engine of gamma-ray bursts. In this context, he computed (in the WKB approximation) the superradiant amplification of scalar waves confined to a thin equatorial wedge around a Kerr hole and found that the superradiance is higher than for ...
متن کاملSpin superradiance versus atomic superradiance
A comparative analysis is given of spin superradiance and atomic superradiance. Their similarities and distinctions are emphasized. It is shown that, despite a close analogy, these phenomena are fundamentally different. In atomic systems, superradiance is a self-organized process, in which both the initial cause, being spontaneous emission, as well as the collectivizing mechanism of their inter...
متن کاملNonlinear spin dynamics in nuclear magnets.
1 Abstract A method is developed for solving nonlinear systems of differential, or inte-grodifferential, equations with stochastic fields. The method makes it possible to give an accurate solution for an interesting physical problem: What are the peculiarities of nonlinear spin dynamics in nonequilibrium nuclear magnets coupled with a resonator? Evolution equations for nuclear spins are derived...
متن کاملSuperradiant Operation of Spin Masers
The theory of spin superradiance, developed earlier for nuclear magnets, is generalized to a wider class of spin systems, such as granular magnets and molecular magnets. The latter may possess strong single-site magnetocrystalline anisotropy, whose role in nonlinear spin dynamics is analysed. Transient as well as pulsing superradiant regimes are described. These coherent regimes may be employed...
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تاریخ انتشار 2002