Fisher information universally identifies quantum resources

• Main Authors: Tan, Kok Chuan, Narasimhachar, Varun, Regula, Bartosz
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2021
• Subjects: Science::Physics; Entanglement; Sensitivity
• Online Access: https://hdl.handle.net/10356/153663
• Institution: Nanyang Technological University

We show that both the classical as well as the quantum definitions of the Fisher information faithfully identify resourceful quantum states in general quantum resource theories, in the sense that they can always distinguish between states with and without a given resource. This shows that all quantu...