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quant-ph2026
Tradeoff between Wigner negativity and decoherence time for cubic Gaussian states
Matthieu Arnhem, Valerio Crescimanna, Giuseppe Patera +1
Wigner negativity has been shown to be a resource in quantum computing, raising the question of how to efficiently produce states with a large Wigner negativity. Cubic Gaussian sta…
quant-ph2026
Complex frequency-dependent quadrature squeezing in semiconductor lasers
Daniele Nello, Giuseppe Patera, Lorenzo Columbo
We present a comprehensive study of quadrature squeezing in a quantum well laser based on a fully quantum Langevin approach. We compute the frequency-resolved squeezing map of the…