摘要
Photon number-squeezed states are of significant value in fundamental quantum research and have a wide range of applications in quantum metrology.Most of their preparation mechanisms require precise control of quantum dynamics and are less tolerant to dissipation.We propose a mechanism that is not subject to these restraints.In contrast to common approaches,we exploit the self-balancing between two types of dissipation induced by positive-and negative-temperature reservoirs to generate steady states with sub-Poissonian statistical distributions of photon numbers.We also show how to implement this mechanism with cavity optomechanical systems.The quality of the prepared photon number-squeezed state is estimated by our theoretical model combined with realistic parameters for various typical optomechanical systems.
基金
Innovation Program for Quantum Science and Technology(2021ZD0303200)
National Key Research and Development Program of China(2016YFA0302001)
National Natural Science Foundation of China(11654005,11974116,12234014)
Shanghai Municipal Science and Technology Major Project(2019SHZDZX01)
Fundamental Research Funds for the Central Universities
Chinese National Youth Talent Support Program
Shanghai Talent Program。
