For systems consisting of distinguishable particles, there exists an agreed upon notion of
entanglement which is fundamentally based on the possibility of addressing individually …

In both classical and quantum many-body physics, it is a core issue to characterize statistical
correlations among different degrees of freedom. From this point of view, a natural question …

Gaussian states have played an important role in the physics of continuous-variable
quantum systems. They are appealing for the experimental ease with which they can be …

Einstein-Rosen-Podolsky (EPR) steering or quantum steering describes the “spooky action
at a distance” that one party is able to remotely alter the states of the other if they share a …

We propose to create and stabilize long-lived macroscopic quantum superposition states in
atomic ensembles. We show that using a fully quantum parametric amplifier can cause the …

Non-Gaussian states with Wigner negativity are of particular interest in quantum technology
due to their potential applications in quantum computing and quantum metrology. However …

While the squeezing of a propagating field can, in principle, be made arbitrarily strong, the
cavity-field squeezing is subject to the well-known 3 dB limit, and thus has limited …

We provide an explicit construction of a universal gate set for continuous-variable quantum
computation with microwave circuits. Such a universal set has been first proposed in …

Linear bosonic modes offer a hardware-efficient alternative for quantum information
processing but require access to some nonlinearity for universal control. The lack of …

There has been a growing interest in realizing quantum simulators for physical systems
where perturbative methods are ineffective. The scalability and flexibility of circuit quantum …