Towards the generation of mechanical Kerr-cats: awakening the perturbative quantum Moyal corrections to classical motion

Towards the generation of mechanical Kerr-cats: awakening the perturbative quantum Moyal corrections to classical motion

Blog Article

The quantum to classical transition is determined by the interplay of a trio of parameters: dissipation, nonlinearity, and macroscopicity.Why is nonlinearity needed to see quantum effects? And, is not an ordinary pendulum quite nonlinear already? In this manuscript, we discuss the parameter regime where the dynamics of a massive oscillator should be quantum mechanical in la rams crop top the presence of dissipation.We review the outstanding challenge of the dynamical generation of highly quantum mechanical cat states of a massive ‘pendulum’, known as Kerr-cats.We argue that state-of-the-art cold atom experiments may be in a position to reach such a nonlinear regime, which today singles out superconducting quantum circuits.A way to stabilize Schrödinger cat superpositions of a mechanical atomic oscillator via parametric here squeezing and further protected by an unusual form of quantum interference is discussed.

The encoding of a neutral atom Kerr-cat qubit is proposed.