Results 81 to 90 of about 2,832,269 (261)

Spontaneous demagnetization of a dipolar spinor Bose gas at ultra-low magnetic field

, 2011
Quantum degenerate Bose gases with an internal degree of freedom, known as spinor condensates, are natural candidates to study the interplay between magnetism and superfluidity.
Bismut, Gabriel, Gorceix, Olivier, Laburthe-Tolra, Bruno, Maréchal, Etienne, Pasquiou, Benjamin, Pedri, Paolo, Vernac, Laurent   +6 more
core   +3 more sources

Effective Hamiltonian of Electroweak Penguin for Hadronic b Quark Decays [PDF]

Journal of Sciences, Islamic Republic of Iran, 2009
In this research we work with the effective Hamiltonian and the quark model. We investigate the decay rates of matter-antimatter of quark. We describe the effective Hamiltonian theory and apply this theory to the calculation of current-current ( ), QCD
H. Mehrban
doaj  

Lossless Positron Injection into a Magnetic Dipole Trap.

Physical Review Letters, 2018
The high-efficiency injection of a low-energy positron beam into the confinement volume of a magnetic dipole has been demonstrated experimentally. This was accomplished by tailoring the three-dimensional guiding-center drift orbits of positrons via ...
E. Stenson, E. Stenson, E. Stenson, S. Nißl, S. Nißl, U. Hergenhahn, U. Hergenhahn, J. Horn-Stanja, M. Singer, H. Saitoh, H. Saitoh, T. S. Pedersen, T. S. Pedersen, J. Danielson, M. Stoneking, M. Dickmann, C. Hugenschmidt   +16 more
semanticscholar   +1 more source

The Submm and mm Excess of the SMC: Magnetic Dipole Emission from Magnetic Nanoparticles?

, 2012
The Small Magellanic Cloud (SMC) has surprisingly strong submm and mm-wavelength emission that is inconsistent with standard dust models, including those with emission from spinning dust.
Draine, B. T., Hensley, Brandon
core   +1 more source

Giant Primeval Magnetic Dipoles [PDF]

The Astrophysical Journal, 2017
Abstract Macroscopic magnetic dipoles are considered cosmic dark matter. Permanent magnetism in relativistic field structures can involve some form of superconductivity, one example being current-carrying string loops (“springs”) with vanishing net tension.
openaire   +4 more sources

Huygens' Metasurfaces Enabled by Magnetic Dipole Resonance Tuning in Split Dielectric Nanoresonators.

Nano letters (Print), 2017
Dielectric metasurfaces that exploit the different Mie resonances of nanoscale dielectric resonators are a powerful platform for manipulating electromagnetic fields and can provide novel optical behavior.
Sheng Liu, A. Vaskin, S. Campione, O. Wolf, M. Sinclair, J. Reno, G. Keeler, I. Staude, I. Brener   +8 more
semanticscholar   +1 more source

Magnetic Nanoparticles in the Interstellar Medium: Emission Spectrum and Polarization

, 2012
The presence of ferromagnetic or ferrimagnetic nanoparticles in the interstellar medium would give rise to magnetic dipole radiation at microwave and submm frequencies.
Ashcroft, B. T. Draine, Babkin, Berger, Billas, Bloch, Bloembergen, Bohren, Brabers, Brandon Hensley, Cabot, Chakrabarti, Chlewicki, Cox, de Oliveira-Costa, Debye, Degiorgi, Draine, Draine, Draine, Draine, Draine, Draine, Dutta, Gasparov, Gilbert, Gilbert, Glotch, Goodman, Henke, Ho, Hoang, Huffman, Iida, Jenkins, Jones, Kogut, Landau, Landau, Lax, Lazarian, Lazarian, Leitch, Lynch, Mathis, Mie, Miles, Milham, Moravec, Neo, Ordal, Ordal, Park, Pecharromán, Pimenov, Querry, Schlegel, Shendruk, Soohoo, Tebble, Tepper, Tiago, Tsuzuki, Valstyn, van de Hulst, Weaver, Werner, Wickramasinghe, Wu, Özdemir   +69 more
core   +1 more source

What is the force on a magnetic dipole? [PDF]

European Journal of Physics, 2018
This version presents a more compelling argument that the textbook equation for the force on a magnetic dipole is correct, and is needed to preserve overall momentum ...
openaire   +3 more sources

Spin excitations of magnetoelectric LiNiPO$_4$ in multiple magnetic phases

, 2019
Spin excitations of magnetoelectric LiNiPO$_4$ are studied by infrared absorption spectroscopy in the THz spectral range as a function of magnetic field through various commensurate and incommensurate magnetically ordered phases up to 33\,T.
Bordács, Sándor, Farkas, Dániel Gergely, Kamenskyi, Dmytro, Kocsis, Vilmos, Kézsmárki, István, Nagel, Urmas, Peedu, Laur, Rõõm, Toomas, Szaller, Dávid, Taguchi, Yasujiro, Tokunaga, Yusuke, Tokura, Yoshinori, Viirok, Johan, Zeitler, Uli   +13 more
core   +1 more source

Dipole-Quadrupole dynamics during magnetic field reversals

, 2010
The shape and the dynamics of reversals of the magnetic field in a turbulent dynamo experiment are investigated. We report the evolution of the dipolar and the quadrupolar parts of the magnetic field in the VKS experiment, and show that the experimental ...
Gissinger, Christophe
core   +1 more source