Paper 13112-52
Magnetic control of electrically uncharged magneto-optical particles
21 August 2024 • 4:05 PM - 4:20 PM PDT
Abstract
Constant magnetic fields are known to interact with electrically charged particles inducing Lorentz forces that point in a direction perpendicular to the field. However, if the particle is electrically discharged, it is impossible to induce a force using a constant magnetic field. An exotic option is to mimic a magnetic charge on a neutral particle. This false magnetic monopole will interact with the magnetic field just as an electric charge would do with an electric field through the Coulomb interaction. Attempts to generate this magnetic charge have mainly relied on quasiparticles generated using condensed matter spin ice networks. In this work we present another option based on neutral magneto-optical particles illuminated by a spinning monochromatic light field. We will analyze the behavior of these particles under different isotropic optical configurations, and we will calculate the value of the induced magnetic charge.
Presenter
Manuel I. Marqués
Univ. Autónoma de Madrid (Spain)
Manuel Marques obtained his B.A in physics at Universidad Complutense de Madrid in 1995 and was awarded with an extraordinary Ph.D. prize in physics at Universidad Autonoma de Madrid in 2000. Fullbright fellow at Boston University from 2001 to 2003. In 2003 he was awarded with a Ramón y Cajal appointment at the Universidad Autonoma de Madrid. Manuel Marques is now Associate Professor in the Material Physics Department and member of the Institute of Condensed Matter Physics (IFIMAC). Actual research activity is devoted to the application of optical forces to manipulate the dynamics of complex systems of particles.