The Wigner function was formulated in 1932 by Eugene Paul Wigner, at a time when
quantum mechanics was in its infancy. In doing so, he brought phase space representations …

We develop a resource theory for continuous-variable systems grounded on operations
routinely available within current quantum technologies. In particular, the set of free …

The ability to process optical signals without passing into the electrical domain has always
attracted the attention of the research community. Processing photons by photons unfolds …

Cat states, with their unique phase-space interference properties, are ideal candidates for
understanding fundamental principles of quantum mechanics and performing key quantum …

Bosonic quantum codes redundantly encode quantum information in the states of a quantum
harmonic oscillator, making it possible to detect and correct errors. Schrödinger cat codes …

We propose an autonomous quantum error correction scheme using squeezed cat (SC)
code against excitation loss in continuous-variable systems. Through reservoir engineering …

Generation of high-fidelity photonic non-Gaussian states is a crucial ingredient for universal
quantum computation using continuous-variable platforms, yet it remains a challenge to do …

We propose a high-rate generation method of optical Schrödinger cat states. Thus far,
photon subtraction from squeezed vacuum states has been a standard method in cat-state …

Mechanical degrees of freedom are natural candidates for continuous-variable quantum
information processing and bosonic quantum simulations. However, these applications …

Large-amplitude squeezed cat states and high-quality Gottesman-Kitaev-Preskill (GKP)
states are essential for effective quantum error correction, yet their optical preparation has …