Fidelity based purity and coherence for quantum states

• URL: http://arxiv.org/abs/2104.03844v1
• Date: Thu, 8 Apr 2021 15:38:46 GMT
• Title: Fidelity based purity and coherence for quantum states
• Authors: Indrajith V S, R. Muthuganesan, and R. Sankaranarayanan
• Abstract summary: We propose a valid measure of purity and coherence monotone and establish a relationship between them. This formulation of coherence is extended to quantum correlation relative to measurement.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Purity and coherence of a quantum state are recognized as useful resources for various information processing tasks. In this article, we propose a fidelity based valid measure of purity and coherence monotone and establish a relationship between them. This formulation of coherence is extended to quantum correlation relative to measurement. We have also studied the role of weak measurement on purity.

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