335 citations · 1.2k across the 10 of their papers we have counts for
10 papers
Non-reciprocal energy transfer through the Casimir effect
Zhujing Xu, Xingyu Gao, Jaehoon Bang +2
A fundamental prediction of quantum mechanics is that there are random fluctuations everywhere in a vacuum because of the zero-point energy. Remarkably, quantum electromagnetic flu…
5D cooling and nonlinear dynamics of an optically levitated nanodumbbell
Jaehoon Bang, Troy Seberson, Peng Ju +5
Optically levitated nonspherical particles in vacuum are excellent candidates for torque sensing, rotational quantum mechanics, high-frequency gravitational wave detection, and mul…
Simulation of sympathetic cooling an optically levitated magnetic nanoparticle via coupling to a cold atomic gas
T. Seberson, Peng Ju, Jonghoon Ahn +3
A proposal for cooling the translational motion of optically levitated magnetic nanoparticles is presented. The theoretical cooling scheme involves the sympathetic cooling of a fer…
Ultrasensitive torque detection with an optically levitated nanorotor
Jonghoon Ahn, Zhujing Xu, Jaehoon Bang +3
Torque sensors such as the torsion balance enabled the first determination of the gravitational constant by Cavendish and the discovery of Coulomb's law. Torque sensors are also wi…
Stable emission and fast optical modulation of quantum emitters in boron nitride nanotubes
Jonghoon Ahn, Zhujing Xu, Jaehoon Bang +3
Atom-like defects in two-dimensional (2D) hexagonal boron nitride (hBN) have recently emerged as a promising platform for quantum information science. Here we investigate single-ph…
Optically Levitated Nanodumbbell Torsion Balance and GHz Nanomechanical Rotor
Jonghoon Ahn, Zhujing Xu, Jaehoon Bang +5
Levitated optomechanics has great potentials in precision measurements, thermodynamics, macroscopic quantum mechanics and quantum sensing. Here we synthesize and optically levitate…
Experimental realization of Feynman's ratchet
Jaehoon Bang, Rui Pan, Thai M. Hoang +4
Feynman's ratchet is a microscopic machine in contact with two heat reservoirs, at temperatures and , that was proposed by Richard Feynman to illustrate the second law o…
Experimental test of the differential fluctuation theorem and a generalized Jarzynski equality for arbitrary initial states
Thai M. Hoang, Rui Pan, Jonghoon Ahn +3
Nonequilibrium processes of small systems such as molecular machines are ubiquitous in biology, chemistry and physics, but are often challenging to comprehend. In the past two deca…
Torsional optomechanics of a levitated nonspherical nanoparticle
Thai M. Hoang, Yue Ma, Jonghoon Ahn +4
An optically levitated nanoparticle in vacuum is a paradigm optomechanical system for sensing and studying macroscopic quantum mechanics. While its center-of-mass motion has been i…
Electron spin control of optically levitated nanodiamonds in vacuum
Thai M. Hoang, Jonghoon Ahn, Jaehoon Bang +1
Electron spins of diamond nitrogen-vacancy (NV) centers are important quantum resources for nanoscale sensing and quantum information. Combining NV spins with levitated optomechani…