BACKGROUND Levitation of large objects has become a widely used technique in science
and engineering, and the control of levitated nano-and micro-objects in vacuum has gained …

The traditional view from particle physics is that quantum-gravity effects should become
detectable only at extremely high energies and small length scales. Owing to the significant …

According to conventional wisdom, a system placed in an environment with a different
temperature tends to relax to the temperature of the latter, mediated by the flows of heat or …

Abstract The GRadient Ascent Pulse Engineering (GRAPE) method is widely used for
optimization in quantum control. GRAPE is gradient search method based on exact …

In this work, we study controllability in the set of all density matrices for a two-level open
quantum system driven by coherent and incoherent controls. In Pechen (2011 Phys. Rev. A …

We report on speeding-up equilibrium recovery in the previously unexplored general case of
the underdamped regime using an optically levitated particle. We accelerate the …

By controlling the variance of the radiation pressure exerted on an optically trapped
microsphere in real time, we engineer temperature protocols that shortcut thermal relaxation …

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 …

Optically levitated nanoparticles emerged as an interesting platform for probing fundamental
physics. Quantum control of their motion (including potential sha**) predisposes them for …

Optimal control of levitated particles subject to thermal fluctuations is a challenging problem,
both from the theoretical and the experimental perspective. In this paper we compute the …