i n d i springer series in nonlinear dynamics978-3-642-77769-1/1.pdfworkshop. this second meeting...
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I N D I I Springer Series in Nonlinear Dynamics
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I N D I I Springer Series in Nonlinear Dynamics
Series Editors: F. Calogero, B. Fuchssteiner, G. Rowlands, M. Wadati, and V. E. Zakharov
Solitons - Introduction and Applications Editor: M. Lakshmanan
What Is Integrability? Editor: V. E. Zakharov
Rossby Vortices and Spiral Structures By M. V. Nezlin and E. N. Snezhkin
Algebro-Geometrical Approach to Nonlinear Evolution Equations By E. D. Belokolos, AI. Bobenko, V. Z. Enolsky, A R. Its and V. B. Matveev
Darboux 'fransformations and Solitons By V. B. Matveev and M. A Salle
Optical Solitons By F. Abdullaev, S. Darmanyan and P. Khabibullaev
Wave Turbulence Under Parametric Excitation Applications to Magnetics ByV.S. Vvov
Koimogorov Spectra ofThrbuience I Wave Turbulence By V. E. Zakharov, V. S. Vvov and G. Falkovich
Nonlinear Processes in Physics Editors: AS. Fokas, D. J. Kaup, A C. Newell and V. E. Zakharov
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A.S. Fokas D.I Kaup A.C. Newell Y.E. Zakharov (Eds.)
Nonlinear Processes in Physics Proceedings of the III Potsdam - V Kiev Workshop at Clarkson University, Potsdam, NY, USA August 1-11, 1991
With 41 Figures
Springer-Verlag Berlin Heidelberg New York London Paris Tokyo Hong Kong Barcelona Budapest
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Professor A. S. Fokas Professor D. J. Kaup Clarkson University, Potsdam, NY 13699-5815, USA
Professor A. C. Newell University of Arizona, Thcson, AZ 85721, USA
Professor V. E. Zakharov Landau Institute for Theoretical Physics, u1. Kosygina 2, 117334 Moscow, Russia and University of Arizona, Tucson, AZ 85721, USA
ISBN-13:978-3-642-77771-4 e-ISBN-13:978-3-642-77769-1 DOl: 10.1007/978-3-642-77769-1
Library of Congress Cataloging·in·Publication Data. Nonlinear processes in physics 1 A. S. Fokas ... [et al.]. p. cm. - (Springer series in nonlinear dynamics) Includes bibliographical references and index. ISBN-13:978-3-642-77771-4 1. Nonlinear theories-Congresses. 2. Soliton theory-Congresses. 3. Mathematical physics-Congresses. I. Fokas, A. S., 1952 -. II. Series. QC20.7.N6N662 1993 530.1'4-dc20 92-32811
This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplicatioll of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer-Verlag. Violations are liable for prosecution under the German Copyright Law.
© Springer-Verlag Berlin Heidelberg 1993 Softcover reprint of the hardcover 1st edition 1993
The use of general descriptive names, registered names, trademarks etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use.
Typesetting: Camera ready copy from the authorsl editors
57/3140-543210 - Printed on acid-free paper
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Preface
In 1979, a historical meeting took place at the Institute for Theoretical Physics in Kiev, USSR, where 48 American Scientists, specialists in nonlinear and turbulent processes, met for two weeks with their soviet counterparts. This meeting provided the unique opportunity for USA and USSR participants to directly interact personally and scientifically with each other. This interaction was of great importance not only for the individuals involved but also for the science of nonlinear phenomena in general.
At the end of the meeting, it was agreed that this exchange should continue, and it was decided to have the next meeting in the USA in 1981. Unfortunately, due to the political situation at that time, the second meeting in the USA never materialized. However, in 1983, the Soviet scientists organized in Kiev a second Workshop. This second meeting was again quite successful. Similar meetings, with growing success were organized at Kiev in 1987, and 1989. It should be noted that 405 participants from 22 countries participated at the fourth Kiev workshop on Nonlinear and Turbulent Processes. The Chainnan of this workshop was V. Zakharov, who has also been a co-chainnan of all the previous workshops.
Even earlier, in 1972, there had been a Potsdam workshop (the first Potsdam meeting) on nonlinear waves which was organized by Alan Newell. This workshop had served as a valuable precursor for much of the work on nonlinear waves in the USA. It was then repeated in 1978 (the second Potsdam workshop) which was a time in the midst of the recent explosive growth in nonlinear waves.
Except for the above four Kiev Workshops, there had been no scientific meetings where a large number of Soviet and USA scientists working in nonlinear and turbulent processes had met. At the closing of the Fourth Kiev Workshop, it was decided to have the next meeting in the USA. Because of the general political climate, it appeared that such an endeavor could now be feasible.
The III Potsdam-V Kiev Workshop on Nonlinear Processes in Physics was held at Clarkson University, Potsdam, NY from August 1-11, 1991. It was sponsored by the Clarkson School of Science and was funded by the National Science Foundation, the Department of Energy, the US Air Force of Scientific Research, the US Office of Naval Research, the Sloan Foundation and the School of Science of Clarkson University. The organizing committee was A.S. Fokas, D.J. Kaup, A.C. Newell and V.E. Zakharov. '
This was the first major scientific workshop in the USA where the Soviet scientists fonned a major contingent of the participants. There were 31 USSR participants out of a total of 106 pa¢cipants. The emphasis of the workshop was on the interaction between mathematical techniques and problems of physical
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interest. It was particularly successful in mixing plasma physicists, fluid physicists and soliton theorists. The exchanges between these groups, particularly with the participation of the Soviet delegation, were quite stimulating.
The lectures ranged from algebraic features of integrable systems and vortex dynamics to applications in plasma physics, ionospheric physics, nonlinear optics, oceanic studies and solid state. It is not possible to give full justice to all the excellent lectures here, but we shall mention some results. Lax presented a survey of the work on the zero dispersion limit for several types of dispersive systems and Levermore, Tian, and Venakides presented new important developments and applications of the Lax-Levermore theory and the associated Whitham's equation. Explicit solutions of this equation, using algebraic-geometric techniques, were presented by Krichever and Dubrovin. Krichever also reviewed the recent appearance of Whitham's equation in the minimal models of 2D quantum gravity. Another connection between soliton theory and 2D quantum gravity was presented by Its who discussed the role of discrete Painleve equations and gave a rigorous description of their continuous limit Deift described a rigorous methodology for studying the long time behavior of the Riemann-Hilbert problems arising in the inverse spectral theory. Santini discussed the possibility of solving purely algebraic equations by the algebraic-geometric techniques developed in soliton theory. New results in the inverse spectral theory of evolution equations in two spatial dimensions were described by Boiti (dromions for DSn, Zhou (KPI), Sung (DSII), and Pogrebkov (KPI). McKean described the spectral theory associated with bi-Hamiltonian structures in classical mechanics, and Dorfman reviewed Hamiltonian and symplectic structures for evolution equations in one and two spatial variables. McLaughlin described algebraic-geometric aspects of the perturbation theory of certain soliton equations. Applications of the dressing method to nonlocal nonlinear evolution equations and to nonlinear evolution equations in multidimensions were discussed by Degasperis and Sabatier respectively. Takhtajan introduced a reversible soliton cellular automaton. Korepin derived and analyzed the integrable PDE's satisfied by quantum correlation functions. Beals described the action angle formulation of the Gel'fand-Dikii hierarchies. Shulman talked about new results regarding degenerate dispersion law. Alber analyzed certain complicated but integrable Hamiltonian systems. Bogoyanlenskij analyzed a certain 2 + 1 version of the KdV and showed that it exhibits the phenomena of breaking of solitons. Conte and Fordy explained how to implement the Painleve test in the presence of negative resonances.
Grunbaum discussed a novel inverse problem arising in low energy medical imaging (diffuse tomography) and Monk described analytical and numerical aspects of a certain inverse scattering problem. Hasegawa described some of the technical points involved with using solitons as pulses in the proposed transatlantic optical cable and Rupasov described new rigorous results ,in the quantum theory of stimulated Raman scattering. Bona showed how a rough wave model could give a respectable explanation of the appearance of underwater sand ridges seen on sloping beaches.
Important new results, in vortex dynamics were presented by Zabusky, Majda, Ichikawa, Horton and Petviashvili. Zabusky showed excellent detailed visual de-
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scriptions of the collisions and reconnection of vortex filaments while Majda and Ichikawa each independently described the stretching and kinking of vortex filaments in irrotational fluids. Both Horton and Petviashvili discussed the rotational case and in particular, showed that the strength of the vortex determines whether the vortex behaves as a point vortex or a KdV soliton in collisions. Langmuir turbulence and collapsing cavitons in the ionosphere were discussed by Don DuBois while Rao and Kaup described how the mode conversion into electron Bernstein waves could cause the observed quenching of the downshifted peaks seen in the Tromsj21 and Arecibo ionospheric modification experiments. Morales discussed the nonlinear refraction of an rf wave in the ionosphere while Hada and Hamilton both presented studies of nonlinear Alfven waves in space plasmas. One of the major presentations in collapse physics was made by Malkin who presented new analytical results for the self-focusing problem of the two-dimensional nonlinear Schrodinger equation. Zakharov and Rubenchik each discussed aspects of weak turbulence.
Most of these lectures are summarized in these proceedings.
Potsdam, NY Moscow Summer 1992
A.S. Fokas D.J. Kaup
A.C. Newell V.E. Zakharov
VII
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VIII
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Contents
Part I Nonlinear Equations
Multisoliton-like Solutions of Wave Propagation in Periodic Nonlinear Structures By AB. Aceves and S. Wabnitz ............................ 3
Complex Deformation of Integrable Hamiltonians over Generalized Jacobi Varieties By S.J. Alber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Collective Coordinates by a Variational Approach: Problems for Sine Gordon and tJ4 Models By J.G. Caputo and N. Flytzanis . . . . . . . . . . . . . . . . . . . . . . . . . . .. 21
Spatiotemporal Chaos in the Nonlinear Three Wave Interaction By C.C. Chow, A Bers, and AK. Ram (With 1 Figure) . . . . . . . . . . .. 25
On the Instability of the Static Soliton-like "Bubbles" By A. de Bouard ...................................... 29
Symplectic and Hamiltonian Structures of Nonlinear Evolution Equations By lYa. Dorftnan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 32
A Fuchs Extension to the Painleve Test By R. Conte, AP. Fordy, and A Pickering .................... 35
Modulation Equations for Nearly Integrable PDEs with Periodic Boundary Conditions By M.G. Forest ....................................... 45
Spectrum of Domain Wall Excitations in YIG By AV. Mikhailov and lA Shimokhin (With 4 Figures)
Interaction of Defects in Nonlinear Dissipative Fields By L.M. Pismen, J. Rubinstein, AA Nepomnyashchy,
47
and J.D. Rodriguez ..................................... 53
On the Analytic Degenerate Dispersion Laws By E.I. Schulman and D.D. Tskhakaya ....................... 60
XI
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Part II Inverse Scattering Transforms
Breaking Solitons. Systems of Hydrodynamic Type By 0.1. Bogoyavlenskij .................................. 67
Real and Virtual Multidimensional Solitons By M. Boiti, L. Martina, O.K. Pashaev, and F. Pempinelli .......... 77
Resolvent Approach for the Nonstationary Schrodinger Equation with Line-Type Potential * By M. Boiti, F. Pempinelli, A.K. Pogrebkov, and M.C. Polivanov 82
Lattice Construction of Quantum Integrable Systems By D.A. Coker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 87
Combining Dressing and Nonlocality By A. Degasperis .....•................................ 91
Initial Boundary-Value Problems for Soliton Equations By A.S. Fokas ........................................ 96
Non-Perturbative Two-Dimensional Quantum Gravity and the lsomonodromy Method By A.S. Fokas, A.R. Its, and A.V. Kitaev ..................... 102
The Action of the Vrrasoro Nonisospectral KdV Symmetries of the Whitham Equations By P.G. Grinevich ..................................... 108
A Generalized Sato's Equation of the KP Theory and Weyl Algebra By Y. Kodama. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 113
Quasirelativistic Analogs of Lax Equations By B.A. Kupershmidt ................................... 114
n x n Zakharov-Shabat System of the Form (d#dx)(z2 -1Iz2)J'lj; + (zQ + P + Riz)'lj; By J.-H. Lee ..... ~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 118
Homoclinic Orbits and Backlund Transformations for the Doubly Periodic Davey-Stewartson Equation By Y. Li and D.W. McLaughlin (With 2 Figures) ................ 122
Volterra Operator Algebra for Zero Curvature Representation. Universality of KP By A.Yu. Orlov ....................................... 126
Calculation of All Commutation Relations Among Scattering Data Without Using the R-Matrix Approach By G.D. Pang and A.S. Fokas ............................. 132
Fluctuating Solitons of the KdV Hierarchy By L. Trlifaj ......................................... 136
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The Periodic Fixed Points of Backlund Transfonnations By J. Weiss (With 3 Figures) .............................. 139
1ST for KPI By Xin Zhou 148
Part III Plasmas
A Physical Model for Nonlinear, Supersonic Equatorial Bubbles By W.J. Burke and T.L. Aggson (With 3 Figures) . . . . . . . . . . . . . . .. 153
Nonlinear Dynamics of Electron Cyclotron Heated Plasmas By G.E. Guest ........................................ 166
Nonlinear Evolution of Alfven Waves in Space Plasmas By T. Hada .......................................... 169
Alfven Solitons and the DNLS Equation By R.L. Hamilton, C.F. Kennel, and E. Mj!2Slhus ................. 175
On the Analytical Theory for Self-Focusing of Radiation By V.M. Malkin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 179
Ionospheric Langmuir Turbulence Driven by an Electromagnetic Pump Below the Upper-Hybrid Frequency By D.L. Newman and M.V. Goldman (With 3 Figures) ............ 180
Mode Conversions in Ionospheric Modification Experiments By N.N. Rao and D.J. Kaup (With 2 Figures) ................... 185
On the Superstrong Wave Collapse By V.F. Shvets (With 2 Figures) . . . . . . . . . . . . . . . . . . . . . . . . . . .. 191
A Moving Boundary Problem in Plasma Physics By N. Sternberg and V.A. Godyak .......................... 195
Proton-Whistler Interactions in the Radiation Belts By E. Villalon and W.J. Burke (With 1 Figure) ............ . . . . .. 199
Part IV Nonlinear Optics
Optical Turbulence in Semiconductor Lasers By E. Abraham, H. Adachihara, O. Hess, R.A. Indik, P. Jacobsen, J.V. Moloney, and P. Ru (With 2 Figures) ..................... 213
Chaotic Dynamics Due to Competition Among Degenerate Modes in a Ring-Cavity Laser By A. Aceves, D.D. Holm, and G. Kovacic (With 2 Figures) ........ 218
Quantum Self Phase Modulation in Optical Fibres By K.J. Blow, R. Loudon, and S.J.D. Phoenix (With 1 Figure) ....... 228
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Quantum Groups: Q-Boson Theories of Integrable Models and Applications in Non-Linear Optics By RK. Bullough and N.M. Bogoliubov (With 1 Figure)
Perturbation Method and Optical Solitons
232
By Y. Kodama . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . .. 241
Birefringent Optical Fibers: Modulational Instability in a Near-Integrable System By DJ. Muraki, O.C. Wright, and D.W. McLaughlin
Rigorous Results in Quantum Theory of Stimulated Raman Scattering
242
By V.1. Rupasov ...................................... 247
Backlund Transformations as Physical Equations By H. Steudel (With 1 Figure) ............................. 252
Level Splitting and Band Formation of Dark Soliton Eigenvalues By G.A. Swartzlander Jr. (With 2 Figures) . . . . . . . . . . . . . . . . . . . .. 256
Soliton Propagation in a Random Medium By P.K.A. Wai, C.R Menyuk, and H.H. Chen (With 1 Figure) ....... 261
Part V Hydrodynamics and Thrbulence
Length Scales and the Navier-Stokes Equations By M. Bartuccelli, C.D. Doering, J.D. Gibbon, and S.J.A. Malham 267
Local and Nonlocal Transfer of Motion Integrals in Wave Turbulence By G.E. Falkovich and M.D. Spector ........................ 271
Weak and Strong Turbulence in the CGL Equation By J.D. Gibbon, M.V. Bartuccelli, and C.R Doering .............. 275
Numerical Test of a Weak Turbulence Approximation for an Electromagnetically Driven Langmuir Turbulence By A. Hanssen and E. Mjj1Slhus . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 279
Drift Wave Vortices in Inhomogeneous Plasmas By W. Horton, X. Su, and P.J. Morrison (With 3 Figures) .......... 281
Solitons on a Vortex Filament with Axial Flow By Y.H. Ichikawa, K. Konno, and H. Ohno (With 1 Figure) 291
Lagrangian Statistics of Turbulence By Y. Kaneda .................................. " . . . .. 299
Pattern Formation Via Resonant Interactions in Fluid Flows By S. Leibovich and A. Mahalov ........................... 303
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Length Scale of Vortices and Mode Competition in Quasi 2D Shear Flows By D.Yu. Manin ........•.•............................ 305
Dynamics of Vortex-Current Filaments in MHO Plasma By V.I. Petviashvili (With 1 Figure) ......................... 306
Success of Arnol'd's Method in a Hierarchy of Ocean Models By P. Ripa •..........•...•..........•............... 310
Wavelets and Two Dimensional Turbulence By J. Weiss (With 3 Figures) .•.•.......................... 315
Part VI Inverse Scattering Problems
Spectral Theory of Linear A-Matrices and the Solution of Certain Nonlinear Algebraic and Functional Equations By B.A. Dubrovin, A.S. Fokas, and P.M. Santini ................ 329
Nonlinear Acoustic Tomography By P. Monk (With 2 Figures) .............................. 334
Spectral Transform for Nonlinear Evolution Equations with N Space Dimensions By P.C. Sabatier . . . . . . • . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . .. 339
Index of Contributors ....•............................. 343
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