
	Where results make sense

Topic: Quantum turbulence

Related Topics

Quantum hydrodynamics

Turbulence

Superfluid

Superconductivity

Copper(I) oxide

Nitroglycerin

Bussard ramjet

Neutron star

	Quantum
		Quantum decoherence Quantum decoherence is the general term for the consequences of irreversible quantum mechanical to c...
		Quantum electrodynamics Quantum electrodynamics (QED) is a hydrogen.
		Quantum statistical mechanics Quantum statistical mechanics is the the study of statistical ensembles of Hilbert space H...
	www.brainyencyclopedia.com /topics/quantum.html (1409 words)

	Turbulence
		Quantum turbulence Quantum Turbulence is the Helium 3.
		Six Degrees of Inner Turbulence Six Degrees of Inner Turbulence is the title of a two-disc 2002 release by the Elektra R...
		The intensity or strength of the vortex is prim...
	www.brainyencyclopedia.com /topics/turbulence.html (72 words)

	WTS (Site not responding. Last check: 2007-10-15)
		The onset of turbulence, the Kolmogorov cascade in developed turbulence, and decay of turbulence, all these are modified in the quantum regime especially at low temperature when the dissipation practically vanishes.
		The expertise obtained by study of turbulence in classical liquids is very important for quantum turbulence.
		The turbulence in classical liquids is thought to be characterized by the dynamics of the vortex tubes, whose radii are of order of the dissipative Kolmogorov scale.
	www.maths.warwick.ac.uk /~snazar/turb_symp/cosmo.html (913 words)

	Fundamental science PDA briefing - iQ NewsNet (Site not responding. Last check: 2007-10-15)
		Optically-latticed quantum degenerate Fermi gas Physicists at the ETH lab in Zurich have made a quantum degenerate Fermi gas in which the atoms are loaded into the criss-cross interstices of an optical lattice, an artificial 3D crystal in which the atoms are held in place by the electric fields of well-aimed laser beams.
		Several quantum theories of gravity suggest that spacetime at this tiny scale is not a smooth continuum but rather a discrete lattice, where particles jump from one point to the next.
		This confirms that tiny quantum fluctuations in the very early universe that are believed to have produced the variation in the microwave background were also responsible for forming the galaxies and for their distribution.
	www.iqnewsnet.com /displaysubl.asp?cat=F (13841 words)

	Fundamental science briefing - iQNewsNet (Site not responding. Last check: 2007-10-15)
		Quantum turbulence Studying the constrained turbulence in superfluids may help in unravelling the more complex problem of turbulent motion in normal fluids, which is one of the great challenges in physics.
		Quantum entanglement Evidence for quantum entanglement of three macroscopic objects has been seen at the University of Maryland in a superconducting circuit operating at temperatures near absolute zero.
		Quantum theory predicts that at the Planck scale, space and time must break up into a "quantum foam" in which connections between different points are constantly appearing and vanishing.
	www.iqnewsnet.com /displaysub.asp?cat=F&year=1 (11880 words)

	Russell J. Donnelly
		Those devoted to the study of quantum fluids are aware of the unprecedented sorts of fluid dynamics that occur when superfluids are present.
		and abroad on the phenomenon of counterflow turbulence.
		Dissipation in Turbulent Helium II The dissipation per unit mass in a classical turbulent flow is of the form
	darkwing.uoregon.edu /~rjd/cyogenic.htm (2250 words)

	Oxford University Press
		Turbulence is the archetypal non-linear, non-equilibrium problem of statistical physics; the fundamental problems of turbulence are still unsolved, but there is a growing interest in their solution.
		This book aims to look at fluid turbulence from the point of view of engineering science and physics to produce an integrated treatise on the nature of the physics of fluid turbulence as a universal phenomenon with a universal behaviour.
		This is followed by a detailed analysis of modern (post 1960) turbulence theory, including rigorous formulation of the turbulence problem as an example of a non-equilibrium statistical system with strong coupling and the application of renormalized perturbation theory to turbulence.
	www.oup.com /ca/isbn/0-19-856256-X (449 words)

	[No title]
		This parameter may regulate the crossover or transition between two classes of superfluid turbulence: (i) the classical regime of Kolmogorov cascade where vortices are locally polarized forming fat vortex tubes, so that the quantization is not important; (ii) the quantum turbulence whose properties are determined by the quantization of vorticity.
		Taking the theory of quantum elasticity (describing phonons) in a 2+1 D Bose system as a literal quantum field theory, we show that superfluidity and superconductivity (in the EM charged case) emerge automatically when the shear rigidity of the elastic state is destroyed by the proliferation of topological defects (quantum dislocations).
		Quantum chemical dynamics is based on the eigenvalue problem for multidimensional vibration Hamiltonians with potential energy surfaces (PES) having at least two minima, which are associated with the initial and final quasi-stationary states, reactants and products of chemical reaction.
	www.itp.ac.ru /itp_new/sem/ippold.html (8820 words)

	INI Programme QVD
		Important aspects of the behaviour of the quantum vortices are still not understood.
		Turbulent flows in such systems are also of great interest, not only in their own right, but also because, surprisingly, they often appear to share important characteristics with those found in classical fluids.
		The aim of this Short Programme is to encourage cross-fertilization by bringing together for intensive cross-disciplinary discussions physicists and mathematicians with backgrounds ranging from quantum fluids to classical fluid mechanics and magnetohydrodynamics, and from applied mathematics to condensed matter and atomic physics.
	www.newton.cam.ac.uk /programmes/QVD (364 words)

	TURBULENCE [quantum curtain]
		...quantum theorist Werner Heisenberg, on his deathbed declared he had two questions for God, why relativity and why turbulence.
		Much less felt was the emphasis Heisenberg placed on turbulence and matrices.
		The latter could have ignited an interest in infinite depth and geometrization, but it took ideas associated with chaos theory to allow that to happen.
	beehive.temporalimage.com /content_apps31/sanford/turbulence.html (219 words)

	Abstract (Site not responding. Last check: 2007-10-15)
		Turbulence in fluids is an old problem of Physical mathematics.
		Understanding turbulence is beyond the capabilities of current Analytical mathematics since the Navier-Stokes that govern it describe strong interactions between a continuum of vortical scales which can not be treated with perturbation or renormalization group methods.
		In this lecture I present first recent numerical results for the simplified (yet experimentally accessible) case of quantum turbulence and then I describe how ideas from this case have been used to understand better the structure of classical, incompressible turbulence.
	www.acm.caltech.edu /colloquia/02-03/kivotides_d.html (94 words)

	Joint Low Temperature Laboratory
		This similarity allowed investigations of one of the cornerstone problems of turbulence - the decay of homogeneous and isotropic turbulence, which is to a good approximation generated in flow through a grid of bars.
		Closer examination shows that the difference between classical and quantum turbulence occurs at small length scales of order or less than the mean distance between quantum vortices in the tangle.
		Generally, it turns out that the phenomenon of fluid turbulence is very robust and controls the flow of both classical and quantum fluids.
	physics.mff.cuni.cz /kfnt/us/menu/groups/rotter/rotter.htm (1441 words)

	Quantum Foam, Einstein's Relativity Theory, Matter and Antimatter (Site not responding. Last check: 2007-10-15)
		There is nothing smaller than a quantum; a quantum can not be composed of smaller or previous things.
		And so it comes about that quantum particles simply pop up where ever there is space; out there, out there somewhere, but also in your head and on the table in front of you.
		Quantum particles are really part of a two-some, and they never get born alone.
	www.abarim-publications.com /artqmnursery.html (1754 words)

	Curriculum Vitae (Site not responding. Last check: 2007-10-15)
		I developed a new magneto-hydrodynamic homogeneous, isotropic, turbulence theory for the plasma of electrons and holes in a semiconductor, as well as for a metal, yielding the first rigorously derived universal classical-physical 1/f spectrum (as was stated by F.N. Hooge), and the classical analog of my present quantum 1/f effect theory.
		P.H. Handel: "Instabilities, Turbulence and Flicker-Noise in Semiconductors", Phys.
		P.H. Handel: "Instabilities, Turbulence and Flicker-Noise in Semiconductors III, Turbulence in Semiconductor Plasma and Flicker-Noise", Z.f.
	www.umsl.edu /~handel/cv.htm (8537 words)

	From ‘macro’ to ‘micro’ – turbulence seen by Cluster
		Such turbulence is generated for instance in the areas of transition between layers of plasma of different density and temperature, but its formation mechanisms are not completely clear yet.
		The new discovery of ‘micro’ turbulence, with vortices of only 100 kilometres across, is a first in the study of the plasma surrounding Earth.
		Besides, Cluster’s study of the turbulence in Earth’s plasma, with the dynamics and the energies involved, is contributing to the advancement of fundamental theories on plasma.
	www.physorg.com /news5753.html (922 words)

	Jahrbuch-CD der MPG 2003 - An attempt of formulating the p
		We present a generalization of the quantum mechanical formalism to a class of propagators that is closely related to the generalized Lorentzian path integrals we proposed in an earlier publication [R. Treumann, Phys.
		In this formulation the Schrodinger and Heisenberg formalisms assume a definite form when introducing a new kappa-Hamilton operator that is a functional of the quantum Hamiltonian operator.
		It is believed that the theory may be of use in application to quantum chaos and quantum turbulence.
	www.mpg.de /forschungsergebnisse/wissVeroeffentlichungen/archivListenJahrbuch/2002/26/publZIM359.html (225 words)

	Quantized Vortex Dynamics and Superfluid Turbulence - Accepted Talks and Abstracts
		Quantum nucleation of phase slips in Bose-Einstein condensates
		Weak turbulence theory for the Nonlinear Schroedinger and Gross-Pitaevskii equations
		Decay regimes of He-II grid turbulence in a finite channel
	www.newton.cam.ac.uk /programmes/QVD/qvdw01-titles.html (302 words)

	Turbulence: Jeng-Horng Chen's Introduction Page (Site not responding. Last check: 2007-10-15)
		In contrast to "laminar" flow, turbulent flow means fluid motion is chaotic, not in an order, unpredictable (so far) and any neighbour point at one moment will be far away later.
		After fast and successful studies of physics and mathematics in 17th, 18th and 19th centuries, it can be said that only turbulence was a not well understood field in classical physics, even though the famous Navier-Stokes equations which descibe fluid motion in partial differential equation form had been found then.
		Despite the shift of studies from turbulence to quantum mechanics in 20th century, the studies of turbulence remains and actually grows due to many important applications to weather, transportation, and heath issue as well as military use.
	www-personal.engin.umich.edu /~jhchen/turbulence/turb.html (536 words)

	Dynamics Days 2004 Mallorca, participants (Site not responding. Last check: 2007-10-15)
		Turbulence Like Quantum Chaos In Three Dimensional Model Of Euclidian Quantum Field Theory.
		Proposed new mechanism for quantum chaos generating in nonlinear dynamical systems.
		The hypothesis is said, that physical turbulence could be identified with quantum chaos of considered type.
	www.imedea.uib.es /~ddays/verAbstracts.php?id=50 (148 words)

	RUSSELL J. DONNELLY (Site not responding. Last check: 2007-10-15)
		Liquid helium below 2 K exhibits strange properties, some of which are apparently due to the manifestation of quantum effects on a macroscopic scale.
		Quantized vortices can also be produced by heat currents in the liquid, where they demonstrate a unique form of quantum turbulence.
		Work is under way to study the transition to turbulence in the flow between rotating cylinders in both classical and superfluids.
	zebu.uoregon.edu /~dmason/grad/fac/donnelly.html (239 words)

	Publications
		Evolution of turbulent spots in a parallel shear flow
		Turbulence and passive scalar transport in a free-slip surface
		Transition to turbulence in linearly stable shear flows
	www.physik.uni-marburg.de /kosy/AGKoSy/AG_publ.html (305 words)

	Unraveling a Twisted Tale
		The findings may shed light on the complexity of turbulent motion in normal fluids, a phenomenon that has challenged physicists for over a century.
		Turbulent fluids show up in oceanography, aviation, pipe flow, and industrial processing, but physicists still have great difficulty describing and studying the constantly changing mix of eddies that constitute turbulent flow.
		For decades physicists have suspected that quantum turbulence in a superfluid arises when vortex lines and rings become so dense that they interact and tangle with each other, but direct evidence for the transition to turbulent flow has been hard to come by.
	focus.aps.org /story/v16/st3 (707 words)

	Publikationen Siegfried Großmann (Site not responding. Last check: 2007-10-15)
		On the Derivation of the Boltzmann-Landau Equation from the Quantum Mechanical Hierarchy, mit K.Baerwinkel, Z.Phys.
		Wie Strömungen turbulent werden, in: Jahrbuch 1996 der Deutschen Akademie der Naturforscher Leopoldina, Herausgeber: Benno Parthier Reihe 3, Bd.42, 263-277 Verlag: Deutsche Akademie der Naturforscher, Halle/Saale, 1997
		Scaling exponents in anisotropic turbulence from the Navier-Stokes equations, mit Anna von der Heydt und Detlef Lohse, J. Fluid Mech.
	www.physik.uni-marburg.de /statphys/sgn/publ.list.html (3170 words)

	No Title
		Kramer, J. Biello, and Y. Lvov, ``Application of weak turbulence theory to FPU model,'' to appear in the journal of Discrete and Continious Dynamical Systems.
		Yuri V.Lvov, Sergei Nazarenko and Robert West, ``Spatially nonhomogeneous weak turbulence theory for the Gross-Pitaevskii equation'', to appear in Physica D. Yuri Lvov and Esteban Tabak, "Hamiltonian formalism and the Garrett-Munk spectrum of internal waves in the ocean", Physics Review Letters, 87, 168501, (2001).
		Yuri V.Lvov, Sergei Nazarenko and Robert West, ``Weak turbulence theory for the Gross-Pitaevskii equation'', in "Quantized vortex dynamics and superfluid turbulence'', Springer-Verlag (2000).
	www.rpi.edu /~lvovy/cv (481 words)

	LIST OF RESEARCH PUBLICATIONS (Site not responding. Last check: 2007-10-15)
		“Chapters (7) and (8) in Theory of Turbulence, No. 120 in the Series of Selected Papers in Physics, edited by H. Takahasi, The Physical Society of Japan (1962), p.
		“Quantum Theory of Gravitation and the Mass of the Electron," Phys.
		“Explicit Functional Integration Method for Determining Approximate Stationary States in Quantum Field Theories," in Proceedings of NATO Advanced Study Institute on Path Integrals and Their Applications in Quantum, Statistical and Solid State Physics (edited by J. Devreese)Plenum, New York, 1978, p.
	home.comcast.net /~gerald-rosen/publications.htm (1639 words)

	Warwick Mathematics Institute — Workshops (Site not responding. Last check: 2007-10-15)
		Joint Workshop and Graduate summer school: Instabilities and Turbulence in MHD flows.
		Environmental and Geophysical Turbulence: new approaches in theoretical and numerical modelling.
		Singularities, coherent structures and their role in intermittent turbulence.
	www.maths.warwick.ac.uk /research/workshops.html (217 words)

	COBRA Research Groups (Site not responding. Last check: 2007-10-15)
		The group has several large refrigerators in the millikelvin region, equipped with magnets up to 8 T. Linked to the group is the Physics Department's cryogenic liquids facility.
		Numerical simulations of vortex motion in 4He are performed to obtain a better understanding of quantum turbulence of 4He in 3He-4He mixtures.
		In the recent past, the attention was focussed on the numerical analysis of the vortex dynamics and the resulting vortex tangles.
	www.cobra.tue.nl /groups/lt/lt.html (544 words)

	Classical aspects of quantum turbulence
		Turbulence in helium II manifests itself as a disordered tangle of quantized vortex lines.
		The study of this form of disorder near absolute zero began with Vinen's heat-transfer experiments in the mid-1950s and is still a fertile ground of investigation.
		This article reviews the recent developments, which show surprising similarities between helium II turbulence and classical turbulence, and points to new directions of research.
	stacks.iop.org /0953-8984/11/7751 (195 words)

	Faculty Members
		In his joint studies with Dr. Howard Baum of NIST, he has developed a novel software module for simulating boundary-layer scalar transport to be coupled with room-scale simulations of fire dynamics.
		Rouson is performing fundamental computer simulations of the motion of quantum vortices in turbulent, superfluid liquid Helium at cryogenic temperatures.
		Rouson has studied the laminar to turbulent transition in free convection boundary layers at temperatures typical of large-scale fire applications.
	www-me.engr.ccny.cuny.edu /faculty/rouson.html (394 words)

Try your search on: Qwika (all wikis)