… a planar superconducting qubit via magnetic stray fields, which can additionally be used to
synthesize high-fidelity magnonic cat states by analog means. The direct magnon-qubit flux-…

… In conclusion, we have generated nonclassical states through the fast tunable nonlinearity
… to the cat states in 3D cavities 44 where the state preparation is based on the ancillary qubit, …

… in QIP with cat-state qubits (ie, qubits encoded with cat states) … set of single- and two-qubit
gates with cat-state qubits [47–52], … using cat-state qubits [53], and realizing a multitarget-qubit …

… Thus the qubit T1 decay leads to cat states dephasing that would be impossible to recover …
microwave resonators with respect to superconducting qubits further intensifies this difference …

… entanglement between a superconducting qubit and hundreds of … qubit-photon logic, we
mapped an arbitrary qubit state to a superposition of coherent states, known as a “cat state…

… cat state is indicated by the negative values in the experimentally obtained spin Wigner function.
The GHZ state … the 18-qubit GHZ state with fixed-frequency superconducting qubits (25) …

… encoding a qubit into the phase space of an oscillator is superpositions of macroscopically
distinct coherent states—the so-called Schrödinger cat states. Here we choose the states \(|{{\…

… coupled to a superconducting qubit, implementing the … such cat states can be used as an
intrinsically protected qubit … The long coherence times of the superconducting qubits and …

… cat states in our scheme can be greatly speeded up, and the resonator with a highfidelity cat
state … , only one dissipative qubit in our scheme is needed for generating the cat state, which …

Cat-state qubits (qubits encoded with cat states) have recently drawn intensive attention …
of two cat-state qubits via two microwave resonators coupled to a superconducting transmon …