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Related papers: Joe Vinen and transverse force on vortex

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A theory is developed to describe the superfluid turbulence on the base of kinetics of the merging and splitting vortex loops. Because of very frequent reconnections the vortex loops (as a whole) do not live long enough to perform any…

Statistical Mechanics · Physics 2009-11-13 Sergey K. Nemirovskii

Whether quantum physics is universally valid is an open question with far-reaching implications. Intense research is therefore invested into testing the quantum superposition principle with ever heavier and more complex objects. Here we…

In the first part of this article, I summarise two centuries of research on turbulence. I also critically discuss some of the interpretations that are still in use, as turbulence remains an inherently non-linear problem that is still…

Fluid Dynamics · Physics 2024-03-12 Marie Farge

There has been a recent tendency to apply Schroedinger's wave equation to macroscopic domains, from Bose-Einstein condensates in neutron stars to planetary orbits. In these applications a hydrodynamical interpretation, involving vortices in…

Quantum Physics · Physics 2007-05-23 J. Orlin Grabbe

We examine the transverse and longitudinal components of the drag force upon a straight vortex line due to the scattering of liquid $^4$He excitations. For this purpose, we consider a recently proposed Hamiltonian that describes the…

Condensed Matter · Physics 2009-10-31 H. M. Cataldo , M. A. Despósito , D. M. Jezek

In two previous papers two evolution equations for the vortex line density $L$, proposed by Vinen, were generalized to rotating superfluid turbulence and compared with each other. Here, the already generalized alternative Vinen equation is…

Other Condensed Matter · Physics 2010-08-27 Michele Sciacca

The role of time reversal invariance in the phenomenology of transverse spin is discussed.

High Energy Physics - Phenomenology · Physics 2007-05-23 V. Barone

We derive a set of equations that describe the shape and behaviour of a single perturbed vortex line in a Bose-Einstein condensate. Through the use of a matched asymptotic expansion and a unique coordinate transform a relation for a…

Quantum Gases · Physics 2013-05-30 Lyndon Koens , Andrew M. Martin

Vortex shedding from an obstacle potential moving in a Bose-Einstein condensate is investigated. Long-lived alternately aligned vortex pairs are found to form in the wake, as for the von K\'arm\'an vortex street in classical viscous fluids.…

Quantum Gases · Physics 2015-05-18 Kazuki Sasaki , Naoya Suzuki , Hiroki Saito

We explore the dynamics of a simple liquid whose particles, in addition to standard potential-based interactions, are also subjected to transverse forces preserving the Boltzmann distribution. We derive the effective dynamics of one and two…

Soft Condensed Matter · Physics 2024-06-18 Federico Ghimenti , Ludovic Berthier , Grzegorz Szamel , Frédéric van Wijland

We consider induced topological transitions in a wire made from cylindrical superconducting film. During a transition, a pulse of electric current causes transport of a virtual vortex-antivortex pair around the cylinder. We consider both…

Quantum Physics · Physics 2007-05-23 S. Khlebnikov

This is a Reply to Nemirovskii Comment [Phys. Rev. B 94, 146501 (2016)] on the Khomenko et al, [Phys.Rev. B v.91, 180504(2016)], in which a new form of the production term in Vinen's equation for the evolution of the vortex-line density…

Other Condensed Matter · Physics 2016-11-01 D. Khomenko , V. S. L'vov , A. Pomyalov , I. Procaccia

I give a brief introduction to the relation between loop quantum gravity and twistor theory, and comment on some perspectives on the problem of time.

General Relativity and Quantum Cosmology · Physics 2015-06-19 Simone Speziale

In a nanopillar with dipolarly coupled vortices, we present an experimental and simulation study to understand how the interplay between the bias field and spin transfer torque impacts reversal of the vortex cores. We find that, depending…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 N. Locatelli , A. E. Ekomasov , A. V. Khvalkovskiy , Sh. A. Azamatov , K. A. Zvezdin , J. Grollier , E. G. Ekomasov , V. Cros

The transversity of quarks inside unpolarized hadrons and its phenomenology are discussed. Several experimental suggestions are proposed that would allow further study of this intrinsic handedness.

High Energy Physics - Phenomenology · Physics 2009-11-07 Daniel Boer

We investigate the dynamics of a magnetic vortex driven by spin-transfer torque due to spin current in the adiabatic case. The vortex core represented by collective coordinate experiences a transverse force proportional to the product of…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Junya Shibata , Yoshinobu Nakatani , Gen Tatara , Hiroshi Kohno , Yoshichika Otani

We describe ferroelectric thin films with circular electrodes and develop a thermodynamic theory that explains previously mysterious experiments. It is found to be especially useful for restricted geometries such as microstructures for…

Materials Science · Physics 2015-06-19 Laurent Baudry , Anaïs Sené , Igor A. Luk'yanchuk , Laurent Lahoche , James F Scott

The specificities of transverse polarization with respect to helicity of ultrarelativistic fermions are pointed out. For massless fermions, a covariant transversity four-vector is defined, up to a kind of gauge transformation. The…

High Energy Physics - Phenomenology · Physics 2007-05-23 X. Artru

In this thesis, we consider the dynamics of vortices in the easy plane insulating ferromagnet in two dimensions. In addition to the quasiparticle excitations, here spin waves or magnons, this magnetic system admits a family of vortex…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Lara Thompson

We discuss the recently published numerical computations of the vortex free energy. They dramatically demonstrate that the excitation probability for a sufficiently thick vortex approaches unity at large beta, i.e. that thick vortices…

High Energy Physics - Lattice · Physics 2009-10-31 T. G. Kovács , E. T. Tomboulis
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