A phonon laser in ultra-cold matter (2009)
Mendonça, J. T., Brodin, G., Marklund, M., Terças, H.
We show the possible excitation of a phonon laser instability in an ultra-cold atomic gas confined in a magneto-optical trap. Such an effect results from a negative Landau damping of the collective...
Interaction between gravitational waves and plasma waves in the Vlasov description (2009)
Brodin, G., Forsberg, M., Marklund, M., Eriksson, D.
The nonlinear interaction between electromagnetic, electrostatic and gravitational waves in a Vlasov plasma is reconsidered. By using a orthonormal tetrad description the three-wave coupling...
Rogue waves in the atmosphere (2009)
The appearance of rogue waves is well known in oceanographics, optics, and cold matter systems. Here we show a possibility for the existence of atmospheric rogue waves.
Fluid moment hierarchy equations derived from quantum kinetic theory (2009)
Haas, F., Marklund, M., Brodin, G., Zamanian, J.
A set of quantum hydrodynamic equations are derived from the moments of the electrostatic mean-field Wigner kinetic equation. No assumptions are made on the particular local equilibrium or on the...
Modestov, M., Bychkov, V., Brodin, G., Valiev, D., Marklund, M., Matyba, P., ...
We develop a model describing the electrochemical conversion of an organic semiconductor (specifically, the active material in a light-emitting electrochemical cell) from the undoped non-conducting...
Nonlinear electromagnetic wave equations for superdense magnetized plasmas (2009)
Shukla, N., Brodin, G., Marklund, M., Shukla, P. K., Stenflo, L.
By using the quantum hydrodynamic and Maxwell equations, we derive nonlinear electron-magnetohydrodynamic (MHD), Hall-MHD, and dust Hall-MHD equations for dense quantum magnetoplasmas. The nonlinear...
Evolution of Rogue Waves in Interacting Wave Systems (2009)
Grönlund, A., Eliasson, B., Marklund, M.
Large amplitude water waves on deep water has long been known in the sea faring community, and the cause of great concern for, e.g., oil platform constructions. The concept of such freak waves is...
Excitation of multiple wakefields by short laser pulses in dense plasmas (2009)
Shukla, P. K., Brodin, G., Marklund, M., Stenflo, L.
We present a theoretical investigation of the excitation of multiple electrostatic wakefields by the ponderomotive force of a short electromagnetic pulse propagating through a dense plasma. It is...
Nonlinear electromagnetic wave equations for superdense magnetized plasmas (2009)
Shukla, Nitin, Brodin, G., Marklund, M., Shukla, P. K., Stenflo, L.
Nonlinear electromagnetic wave equations for superdense magnetized plasmas (2009)
Shukla, Nitin, Brodin, G, Marklund, M, Shukla, P K, Stenflo, Lennart
By using the quantum hydrodynamic and Maxwell equations, we derive the generalized nonlinear electron magnetohydrodynamic, the generalized nonlinear Hall-MHD (HMHD), and the generalized nonlinear...
On the possibility of metamaterial properties in spin plasmas (2008)
The fluid theory of plasmas is extended to include the properties of electron spin. The linear theory of waves in a magnetized plasma is presented, and it is shown that the spin effects causes a...
Mendonca, J. T., Brodin, G., Marklund, M.
Two different quantum processes are considered in a perturbed vacuum cavity: time refraction and dynamical Casimir effect. They are shown to be physically equivalent, and are predicted to be...
Modified Jeans Instability Criteria for Magnetized Systems (2008)
Lundin, J., Marklund, M., Brodin, G.
The Jeans instability is analyzed for dense magnetohydrodynamic plasmas with intrinsic magnetization, the latter due to collective electron spin effects. Furthermore, effects of electron tunneling as...
Wake field generation and nonlinear evolution in a magnetized electron-positron-ion plasma (2008)
Shukla, P. K., Brodin, G., Marklund, M., Stenflo, L.
The nonlinear propagation of a circularly polarized electromagnetic (CPEM) wave in a strongly magnetized electron-positron-ion plasma is investigated. Two coupled equations describing the interaction...
Superluminal tunneling of microwaves in smoothly varying transmission lines (2008)
Shvartsburg, A. B., Marklund, M., Brodin, G., Stenflo, L.
Tunneling of microwaves through a smooth barrier in a transmission line is considered. In contrast to standard wave barriers, we study the case where the dielectric permittivity is positive, and the...
Spin quantum plasmas - new aspects of collective dynamics (2008)
Quantum plasmas is a rapidly expanding field of research, with applications ranging from nanoelectronics, nanoscale devices and ultracold plasmas, to inertial confinement fusion and astrophysics....
Quantum, spin and QED effects in plasmas (2008)
Plasmas are usually described using classical equations. While this is often a good approximation, where are situations when a quantum description is motivated. In this paper we will include several...
Quantum plasma effects in the classical regime (2008)
Brodin, G., Marklund, M., Manfredi, G.
For quantum effects to be significant in plasmas it is often assumed that the temperature over density ratio must be small. In this paper we challenge this assumption by considering the contribution...
New quantum limits in plasmonic devices (2008)
Marklund, M, Brodin, G, Stenflo, Lennart, Liu, C S
Surface plasmon polaritons (SPPs) have recently been recognized as an important future technique for microelectronics. Such SPPs have been studied using classical theory. However, current...
New Quantum Limits in Plasmonic Devices (2007)
Marklund, M., Brodin, G., Stenflo, L., Liu, C. S.
Surface plasmon polaritons (SPPs) have recently been recognized as an important future technique for microelectronics. Such SPPs have been studied using classical theory. However, current...
Laboratory soft x-ray emission due to the Hawking-Unruh effect? (2007)
Brodin, G., Marklund, M., Bingham, R., Collier, J., Evans, R. G.
The structure of spacetime, quantum field theory, and thermodynamics are all connected through the concepts of the Hawking and Unruh temperatures. The possible detection of the related radiation...
Ferromagnetic behavior in magnetized plasmas (2007)
We consider a low-temperature plasma within a newly developed MHD Fluid model. In addition to the standard terms, the electron spin, quantum particle dispersion and degeneracy effects are included....
Spin solitons in magnetized pair plasmas (2007)
A set of fluid equations, taking into account the spin properties of the electrons and positrons in a magnetoplasma, are derived. The magnetohydrodynamic limit of the pair plasma is investigated. It...
Three-dimensional instability of two nonlinearly coupled electromagnetic waves in a plasma (2007)
Stenflo, L., Eliasson, B., Marklund, M.
The three-dimensional instability of two coupled electromagnetic waves in an unmagnetized plasma is investigated theoretically and numerically. In the regime of two-plasmon decay, where one pump wave...
Circularly polarized waves in a plasma with vacuum polarization effects (2007)
Lundin, J., Stenflo, L., Brodin, G., Marklund, M., Shukla, P. K.
The theory for large amplitude circularly polarized waves propagating along an external magnetic field is extended in order to include also vacuum polarization effects. A general dispersion relation,...
Magnetosonic solitons in a dusty plasma slab (2007)
Marklund, M., Stenflo, L., Shukla, P. K.
The existence of magnetosonic solitons in dusty plasmas is investigated. The nonlinear magnetohydrodynamic equations for a warm dusty magnetoplasma are thus derived. A solution of the nonlinear...
Magnetosonic solitons in a Fermionic quantum plasma (2007)
Marklund, M., Eliasson, B., Shukla, P. K.
Starting from the governing equations for a quantum magnetoplasma including the quantum Bohm potential and electron spin-1/2 effects, we show that the system of quantum magnetohydrodynamic (QMHD)...
Short wavelength electromagnetic propagation in magnetized quantum plasmas (2007)
Lundin, J., Zamanian, J., Marklund, M., Brodin, G.
The quantum electrodynamical (QED) short wavelength correction on plasma wave propagation for a non-relativistic quantum plasma is investigated. A general dispersion relation for a thermal...
Anomalous reflection and excitation of surface waves in metamaterials (2007)
Brodin, G., Marklund, M., Stenflo, L., Shukla, P. K.
We consider reflection of electromagnetic waves from layered structures with various dielectric and magnetic properties, including metamaterials. Assuming periodic variations in the permittivity, we...
Betschart, G., Zunkel, C., Dunsby, P. K. S., Marklund, M.
Here we respond to the comment by Tsagas (gr-qc/0503042) on our paper gr-qc/0503006. We show that the results in that comment are flawed and cannot be used for drawing conclusion about the nature of...
Quantum Electrodynamical Photon Splitting in Magnetized Nonlinear Pair Plasmas (2007)
Brodin, G., Marklund, M., Eliasson, B., Shukla, P. K.
We present for the first time the nonlinear dynamics of quantum electrodynamic (QED) photon splitting in a strongly magnetized electron-positron (pair) plasma. By using a QED corrected Maxwell...
A. Boudewyns, M. Marklund, W. Hochban
Although continuous positive airway pressure (CPAP) is considered to represent the standard treatment for patients with moderate-to-severe obstructive sleep apnoea/hypopnoea syndrome (OSAHS), poor...
Spin magnetohydrodynamics (2006)
Starting from the non-relativistic Pauli description of spin-1/2 particles, a set of fluid equations, governing the dynamics of such particles interacting with external fields and other particles, is...
Dynamics of spin 1/2 quantum plasmas (2006)
The fully nonlinear governing equations for spin 1/2 quantum plasmas are presented. Starting from the Pauli equation, the relevant plasma equations are derived, and it is shown that nontrivial...
Modulational Instability of Nonlinearly Interacting Incoherent Sea States (2006)
Shukla, P. K., Marklund, M., Stenflo, L.
The modulational instability of nonlinearly interacting spatially incoherent Stokes waves is analyzed. Starting from a pair of nonlinear Schroedinger equations, we derive a coupled set of...
Marklund, M., Shukla, P. K., Bingham, R., Mendonca, J. T.
The modulational instability of broadband optical pulses in a four-state atomic system is investigated. In particular, starting from a recently derived generalized nonlinear Schr\"odinger equation, a...
Nonlinear wave interactions in quantum magnetoplasmas (2006)
Shukla, P. K., Ali, S., Stenflo, L., Marklund, M.
Nonlinear interactions involving electrostatic upper-hybrid (UH), ion-cyclotron (IC), lower-hybrid (LH), and Alfven waves in quantum magnetoplasmas are considered. For this purpose, the quantum...
Graviton mediated photon-photon scattering in general relativity (2006)
Brodin, G., Eriksson, D., Marklund, M.
In this paper we consider photon-photon scattering due to self-induced gravitational perturbations on a Minkowski background. We focus on four-wave interaction between plane waves with weakly space...
Kinetic theory for radiation interacting with sound waves in ultrarelativistic pair plasmas (2006)
Marklund, M., Shukla, P. K., Stenflo, L.
A kinetic theory for radiation interacting with sound waves in an ultrarelativistic electron-positron plasma is developed. It is shown that the effect of a spatial spectral broadening of the...
Kinetic theory of electromagnetic ion waves in relativistic plasmas (2006)
A kinetic theory for electromagnetic ion waves in a cold relativistic plasma is derived. The kinetic equation for the broadband electromagnetic ion waves is coupled to the slow density response via...
Statistical properties of the continuum Salerno model (2006)
Marklund, M., Shukla, P. K., Bingham, R., Mendonca, J. T.
The statistical properties of the Salerno model is investigated. In particular, a comparison between the coherent and partially coherent wave modes is made for the case of a random phased wave...
Marklund, M., Eliasson, B., Shukla, P.K.*
A kinetic equation describing the nonlinear evolution of intense electromagnetic pulses in electron–positron (e-p) plasmas is presented. The modulational instability is analyzed for a...
Marklund, M., Eliasson, B., Shukla, P.K.
A kinetic equation describing the nonlinear evolution of intense electromagnetic pulses in electron-positron (e-p) plasmas is presented. The modulational instability is analyzed for a...
Marklund, M., Eliasson, B., Shukla, P.K.
A kinetic equation describing the nonlinear evolution of intense electromagnetic pulses in electron-positron (e-p) plasmas is presented. The modulational instability is analyzed for a...
Instability and Evolution of Nonlinearly Interacting Water Waves (2006)
Shukla, P. K., Kourakis, I., Eliasson, B., Marklund, M., Stenflo, L.
We consider the modulational instability of nonlinearly interacting two-dimensional waves in deep water, which are described by a pair of two-dimensional coupled nonlinear Schroedinger equations. We...
Photon acceleration in vacuum (2006)
Mendonça, J.T., Marklund, M., Shukla, P.K.*, Brodin, G.
A new process associated with the nonlinear optical properties of the electromagnetic vacuum, as predicted by quantum electrodynamics, is described. This can be called photon acceleration in vacuum,...
Photon acceleration in vacuum (2006)
Mendonça, J.T., Marklund, M., Shukla, P.K., Brodin, G.
A new process associated with the nonlinear optical properties of the electromagnetic vacuum, as predicted by quantum electrodynamics, is described. This can be called photon acceleration in vacuum,...
Photon acceleration in vacuum (2006)
Mendonça, J.T., Marklund, M., Shukla, P.K., Brodin, G.
A new process associated with the nonlinear optical properties of the electromagnetic vacuum, as predicted by quantum electrodynamics, is described. This can be called photon acceleration in vacuum,...
Photon acceleration in vacuum (2006)
Mendonca, J. T., Marklund, M., Shukla, P. K., Brodin, G.
A new process associated with the nonlinear optical properties of the electromagnetic vacuum, as predicted by quantum electrodynamics, is described. This can be called photon acceleration in vacuum,...
Marklund, M., Eliasson, B., Shukla, P. K.
A kinetic equation describing the nonlinear evolution of intense electromagnetic pulses in electron-positron (e-p) plasmas is presented. The modulational instability is analyzed for a...
Lundin, J., Marklund, M., Lundstrom, E., Brodin, G., Collier, J., Bingham, R., ...
We derive expressions for the coupling coefficients for electromagnetic four-wave mixing in the non-linear quantum vacuum. An experimental setup for detection of elastic photon-photon scattering is...
Short wavelength quantum electrodynamical correction to cold plasma-wave propagation (2006)
Lundin, J., Brodin, G., Marklund, M.
The effect of short wavelength quantum electrodynamic (QED) correction on plasma-wave propagation is investigated. The effect on plasma oscillations and on electromagnetic waves in an unmagnetized as...
Instability and dynamics of two nonlinearly coupled laser beams in a plasma (2006)
Shukla, P. K., Eliasson, B., Marklund, M., Stenflo, L., Kourakis, I., Parviainen, M., ...
We investigate the nonlinear interaction between two laser beams in a plasma in the weakly nonlinear and relativistic regime. The evolution of the laser beams is governed by two nonlinear...
Modulational instability of partially coherent signals in electrical transmission lines (2006)
We present an investigation of the modulational instability of partially coherent signals in electrical transmission lines. Starting from the modified Ginzburg-Landau equations and the Wigner-Moyal...
New low frequency oscillations in quantum dusty plasmas (2006)
Stenflo, L., Shukla, P. K., Marklund, M.
The existence of two new low-frequency electrostatic modes in quantum dusty plasmas is pointed out. These modes can be useful to diagnose charged dust impurities in micro-electro-mechanical systems.
Filamentational Instability of Partially Coherent Femtosecond Optical Pulses in Air (2006)
The filamentational instability of spatially broadband femtosecond optical pulses in air is investigated by means of a kinetic wave equation for spatially incoherent photons. An explicit expression...
Electrostatic pair creation and recombination in quantum plasmas (2006)
Marklund, M., Eliasson, B., Shukla, P. K., Stenflo, L., Dieckmann, M. E., Parviainen, M.
The collective production of electron-positron pairs by electrostatic waves in quantum plasmas is investigated. In particular, a semi-classical governing set of equation for a self-consistent...
Nonlinear collective effects in photon-photon and photon-plasma interactions (2006)
We consider strong-field effects in laboratory and astrophysical plasmas and high intensity laser and cavity systems. Current state-of-the-art laser facilities are close to reaching energy scales at...
Large-amplitude Electron Oscillations in a Plasma Slab (2006)
Stenflo, L., Marklund, M., Brodin, G., Shukla, P. K.
Nonlinear oscillations within a plasma slab are analyzed. Two types of solutions are found, depending on the initial value of the electron density. The first represents regular oscillations within...
Ultra-short solitons and kinetic effects in nonlinear metamaterials (2006)
Marklund, M., Shukla, P. K., Stenflo, L.
We present a stability analysis of a modified nonlinear Schroedinger equation describing the propagation of ultra-short pulses in negative refractive index media. Moreover, using methods of quantum...
Dynamics of broadband dispersive Alfven waves (2006)
The properties of amplitude modulated broadband Alfven waves is investigated. In particular, the dynamics of circularly polarized dispersive Alfven waves, governed by a derivative nonlinear...
Lundin, J, Marklund, M, Lundstrom, E, Brodin, G, Collier, J, Bingham, R, ...
We derive expressions for the coupling coefficients for electromagnetic four-wave mixing in the nonlinear quantum vacuum. An experimental setup for detection of elastic photon-photon scattering is...
Using high-power lasers for detection of elastic photon-photon scattering (2006)
Lundström, E, Brodin, G, Lundin, J, Marklund, M, Bingham, R, Collier, J, ...
Self-compression and catastrophic collapse of photon bullets in vacuum (2005)
Marklund, M., Eliasson, B., Shukla, P. K.
Photon-photon scattering, due to photons interacting with virtual electron-positron pairs, is an intriguing deviation from classical electromagnetism predicted by quantum electrodynamics (QED). Apart...
Incoherent interaction of light with electron-acoustic waves (2005)
The equations governing the interaction between incoherent light and electron-acoustic waves are presented. The modulational instability properties of the system are studied, and the effect of...
Quantum electrodynamical shocks and solitons in astrophysical plasmas (2005)
Marklund, M., Tskhakaya, D. D., Shukla, P. K.
The nonlinear propagation of low-frequency circularly polarized waves in a magnetized dusty plasma is analyzed. It is found that wave steepening and shock formation can take place due to the presence...
Using high-power lasers for detection of elastic photon-photon scattering (2005)
Lundstrom, E., Brodin, G., Lundin, J., Marklund, M., Bingham, R., Collier, J., ...
The properties of four-wave interaction via the nonlinear quantum vacuum is investigated. The effect of the quantum vacuum is to generate photons with new frequencies and wave vectors, due to elastic...
Random phases in Bose-Einstein condensates with higher order nonlinearities (2005)
We present a statistical description of Bose-Einstein condensates with general higher order nonlinearities. In particular, we investigate the case of cubic-quintic nonlinearities, of particular...
Classical and quantum kinetics of the Zakharov system (2005)
A kinetic theory for quantum Langmuir waves interacting nonlinearly with quantum ion-acoustic waves is derived. The formulation allows for a statistical analysis of the quantum correction to the...
Statistical description of short pulses in long optical fibers: Effects of nonlocality (2005)
We present a statistical description of the propagation of short pulses in long optical fibers, taking into account the Kerr and nonlocal nonlinearities on an equal footing. We use the Wigner...
Modulational instability criteria for two-component Bose-Einstein condensates (2005)
Kourakis, I., Shukla, P. K., Marklund, M., Stenflo, L.
The stability of colliding Bose-Einstein condensates is investigated. A set of coupled Gross-Pitaevskii equations is thus considered, and analyzed via a perturbative approach. No assumption is made...
Solitons and decoherence in left-handed metamaterials (2005)
Marklund, M., Shukla, P. K., Stenflo, L., Brodin, G.
We present exact electromagnetic solitary pulses that can be experimentally obtained within nonlinear left-handed metamaterials. The effect of pulse decoherence on the modulation instability of...
Quantum Electrodynamical Effects in Dusty Plasmas (2005)
Marklund, M., Stenflo, L., Shukla, P. K., Brodin, G.
A new nonlinear electromagnetic wave mode in a magnetized dusty plasma is predicted. Its existence depends on the interaction of an intense circularly polarized electromagnetic wave with a dusty...
Dust acoustic wave in a strongly magnetized pair-dust plasma (2005)
The existence of the dust acoustic wave (DAW) in a strongly magnetized electron-positron (pair)-dust plasma is demonstrated. In the DAW, the restoring force comes from the pressure of inertialess...
Cherenkov radiation in a photon gas (2005)
Marklund, M., Brodin, G., Stenflo, L., Shukla, P. K.
It is well-known that a charged particle moving with constant velocity in vacuum does not radiate. In a medium the situation can be different. If the so called Cherenkov condition is satisfied, i.e....
Generation of Gravitational Radiation in Dusty Plasmas and Supernovae (2004)
Brodin, G., Marklund, M., Shukla, P. K.
We present a novel nonlinear mechanism for exciting a gravitational radiation pulse (or a gravitational wave) by dust magnetohydrodynamic (DMHD) waves in dusty astrophysical plasmas. We derive the...
Wave-kinetic description of nonlinear photons (2004)
Marklund, M., Shukla, P. K., Brodin, G., Stenflo, L.
The nonlinear interaction, due to quantum electrodynamical (QED) effects, between photons is investigated using a wave-kinetic description. Starting from a coherent wave description, we use the...
The Intense Radiation Gas (2004)
Marklund, M., Shukla, P. K., Eliasson, B.
We present a new dispersion relation for photons that are nonlinearly interacting with a radiation gas of arbitrary intensity due to photon-photon scattering. It is found that the photon phase...
New low-frequency nonlinear electromagnetic wave in a magnetized plasma (2004)
Marklund, M., Shukla, P. K., Stenflo, L., Brodin, G., Servin, M.
A new nonlinear electromagnetic wave mode in a magnetized plasma is predicted. Its existence depends on the interaction of an intense circularly polarized electromagnetic wave with a plasma, where...
Photon-graviton pair conversion (2004)
Kallberg, A., Brodin, G., Marklund, M.
We consider the conversion of gravitons and photons as a four-wave mixing process. A nonlinear coupled systems of equations involving two gravitons and two photons is obtained, and the energy...
Nonlinear model for magnetosonic shocklets in plasmas (2004)
Shukla, P. K., Eliasson, B., Marklund, M., Bingham, R.
Exact nonlinear equations for magnetosonic shocklets in a uniform hot magnetoplasma are derived by using the nonlinear magnetohydrodynamic equations. Analytic as well as numerical solutions of the...
Marklund, M., Shukla, P. K., Brodin, G., Stenflo, L.
The nonlinear interaction, due to quantum electrodynamical (QED) effects, between two electromagnetic pulses and a radiation gas is investigated. It is found that the governing equations admit both...
The electromagnetic signature of black hole ringdown (2003)
Clarkson, C., Marklund, M., Betschart, G., Dunsby, P.
We investigate generation of electromagnetic radiation by gravitational waves interacting with a strong magnetic field in the vicinity of a vibrating Schwarzschild black hole. Such an effect may play...
Self-phase modulation of spherical gravitational waves (2003)
Mendonca, J. T., Cardoso, V., Marklund, M., Servin, M., Brodin, G.
Self-phase modulation of spherical gravitational wavepackets propagating in a flat space-time in the presence of a tenuous distribution of matter is considered. Analogies with respect to similar...
Nonlinear self-interaction of plane gravitational waves (2003)
Servin, M., Marklund, M., Brodin, G., Mendonca, J. T., Cardoso, V.
Recently Mendonca and Cardoso [Phys. Rev. D, vol. 66, 104009 (2002)] considered nonlinear gravitational wave packets propagating in flat space-time. They concluded that the evolution equation - to...
Gravitational wave detection using electromagnetic modes in a resonance cavity (2002)
We present a proposal for a gravitational wave detector, based on the excitation of an electromagnetic mode in a resonance cavity. The mode is excited due to the interaction between a large amplitude...
Light bullets and optical collapse in vacuum (2002)
Brodin, G., Stenflo, L., Anderson, D., Lisak, M., Marklund, M., Johannisson, P.
In quantum electrodynamics, photon--photon scattering can be the result of the exchange of virtual electron--positron pairs. Effectively, this gives rise to self-interaction terms in Maxwell's...
Gravitational wave amplification of seed magnetic fields (2001)
Tsagas, C. G., Dunsby, P. K. S., Marklund, M.
We discuss how gravitational waves could amplify seed magnetic fields to strengths capable of supporting the galactic dynamo. We consider the interaction of a weak magnetic field with gravity wave...
Marklund, M., Anderson, D., Cattani, F., Lisak, M., Lundgren, L.
Fermat's principle and variational analysis is used to analyze the trajectories of light propagating in a radially inhomogeneous medium with a singularity in the center. It is found that the light...
Bradley, M., Fodor, G., Marklund, M., Perjes, Z.
Using an orthonormal Lorentz frame approach to axistationary perfect fluid spacetimes, we have formulated the necessary and sufficient equations as a first order system, and investigated the...
Photon frequency conversion induced by gravitational radiation (2000)
Brodin, G., Marklund, M., Servin, M.
We consider propagation of gravitational radiation in a magnetized multicomponent plasma. It is shown that large density perturbations can be generated, even for small deviations from flat space,...
Parametric Excitation of Alfven Waves by Gravitational Radiation (1999)
Servin, M., Brodin, G., Bradley, M., Marklund, M.
We consider the parametric excitation of Alfven waves by gravitational radiation propagating on a Minkowski background, parallel to an external magnetic field. As a starting point, standard ideal MHD...
Invariant construction of solutions to Einstein's field equations - LRS perfect fluids II (1998)
The properties of LRS class II perfect fluid space-times are analyzed using the description of geometries in terms of the Riemann tensor and a finite number of its covariant derivatives. In this...
Axistationary perfect fluids -- a tetrad approach (1998)
Fodor, G., Marklund, M., Perjés, Z.
Stationary axisymmetric perfect fluid space-times are investigated using the curvature description of geometries. Attention is focused on space-times with a vanishing electric part of the Weyl...