Fundamental quantum limits on phase-insensitive linear amplification and phase conjugation in a practical framework
Ryo Namiki · Physical Review A · 2011
We present experimentally testable quantum limitations on the phase-insensitive linear amplification and phase conjugation with respect to the transformation of a Gaussian-distributed set of coherent states following the footing to assess the success of continuous-variable quantum teleportation and quantum memory devices. The results enable us to compare the real device with the quantum-limited device via the feasible input of coherent states.