Physics Seminar: Spin transport by a supercurrent in a room-temperature magnon Bose-Einstein condensate

N-823

Speaker: Dr. Oleksandr Serha University of Kaiserslautern Kaiserslautern, Rhineland-Palatinate, Germany Abstract: With the fast growth in the volume of information being processed, researchers are charged with the task of finding new ways for fast and energy efficient computing. An extraordinary challenge is the use of macroscopic quantum phenomena such as magnon Bose-Einstein condensates (BEC) for the

Physics Seminar: Quantum materials: insights from near field nano-optics

N-823

Presented by Prof. Dmitri Basov Columbia University New York, NY, USA Abstract In 1944 Hans Bethe reported on “the diffraction of electromagnetic radiation by a hole small compared with the wave-length” . This seminal paper was among the early precursors to a new and vibrant area of research: near field nano-optics. I will discuss recent

Physics Seminar: Exciton complexes in quasi-2D crystals in the configuration space approach

N-823

Presenter: Prof. Igor V. Bondarev North Carolina Central University Durham, NC, USA Abstract: I will present a universal method for binding energy evaluation of the lowest energy neutral and charged exciton complexes (biexciton, trion) in spatially confined semiconductor nanostructures . The method, originally pioneered by Landau, Gor'kov, Pitaevski, Holstein, and Herring in their studies of

Physics Lecture

Namm 823

The Physics Department and Center for Theoretical Physics will host a seminar Thursday, October 25 at 12:00 pm in Namm Room 823.  Faculty and students are welcome. Title: Odd surface waves in two-dimensional incompressible fluids Dr. Sriram Ganeshan City College of CUNY New York, NY, USA Abstract: In everyday fluids, the viscosity is the measure

Physics Department presents Novel nano-imaging techniques for probing electronic properties in graphene devices

Namm 823

Presented by: Dr. Dorri Halbertal Columbia University My talk will present results of two studies of heat dissipation related processes in graphene devices, involving unconventional local probe techniques. The first part of my talk will focus on my work at the Weizmann Institute involving the developed of a scanning nanoSQUID with sub 50 nm diameter

Physics Department presents Effects of confinement and degeneracy on optomechanical interaction between whispering-gallery-modes and a nanoparticle: old results and new ideas

Optical force on a polarizable dipole is usually divided into a conservative force, described as a gradient of the effective potential energy proportional to the intensity of electromagnetic field, and a non-conservative scattering or radiative pressure force. In this talk i will show that combination of the confinement of light in highly symmetrical optical cavity