3 papers
quant-ph2026
A levitated nano-accelerometer sensitized by quantum quench
M. Kamba, S. Otabe, K. Funo +2
We realize a nanoscale accelerometer exploiting the nonequilibrium dynamics of a nanoparticle near the quantum ground state. We explore the dynamics after quenching the trapping po…
quant-ph2023
Revealing the velocity uncertainties of a levitated particle in the quantum ground state
M. Kamba, K. Aikawa
We demonstrate time-of-flight measurements for an ultracold levitated nanoparticle and reveal its velocity for the translational motion brought to the quantum ground state. We disc…
physics.optics2020
Recoil-limited feedback cooling of single nanoparticles near the ground state in an optical lattice
M. Kamba, H. Kiuchi, T. Yotsuya +1
We report on direct feedback cooling of single nanoparticles in an optical lattice to near their motional ground state. We find that the laser phase noise triggers severe heating o…