Negativity of quasiprobability distributions as a measure of nonclassicality

• Main Authors: Tan, Kok Chuan, Choi, Seongjeon, Jeong, Hyunseok
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2020
• Subjects: Science::Physics; Quantum Information; Quantum Optics
• Online Access: https://hdl.handle.net/10356/138232
• Institution: Nanyang Technological University

We demonstrate that the negative volume of any s-parametrized quasiprobability, including the Glauber-Sudashan P function, can be consistently defined and forms a continuous hierarchy of nonclassicality measures that are linear optical monotones. These measures belong to an operational resource theo...