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 …

We study the dynamics of the pump mode in the down-conversion Hamiltonian using the
cumulant-expansion method, perturbation theory, and the full numerical simulation of …

Quanta splitting is an essential generator of Gaussian entanglement, exemplified by Einstein-
Podolsky-Rosen states and apparently the most commonly occurring form of entanglement …

Very recently, strongly non-Gaussian states have been observed via a direct three-mode
spontaneous parametric down-conversion in a superconducting cavity [Phys. Rev. X 10 …

Universal quantum computing with continuous variables requires non-Gaussian resources,
in addition to a Gaussian set of operations. A known resource enabling universal quantum …

We have designed a tunable nonlinear resonator terminated by a SNAIL (Superconducting
Nonlinear Asymmetric Inductive eLement). Such a device possesses a Kerr-free point in …

We theoretically demonstrate through numerical methods that the triple-photon state
generated by three-photon spontaneous parametric down-conversion is a non-Gaussian …

Triple-photon states generated by three-mode spontaneous parametric down-conversion
are the paradigm of unconditional non-Gaussian states, essential assets for quantum …

We introduce a class of quantum optical Hamiltonians characterized by three-body
couplings and propose a circuit-QED scheme based on state-of-the-art technology that …

Significant progress has been made with multipartite entanglement of discrete qubits, but
continuous variable systems may provide a more scalable path toward entanglement of …