TL;DR
This paper introduces a unified approach to quantum smoothing, combining entanglement and continuous measurement, and demonstrates its application in quantum communication with a two-mode squeezed state.
Contribution
It provides a unified formulation of classical and quantum smoothing and establishes a smoothing uncertainty relation, advancing quantum state estimation techniques.
Findings
Unified quantum and classical smoothing framework
Derived a smoothing uncertainty relation
Demonstrated quantum communication using two-mode squeezed state
Abstract
Quantum initial state estimation through entanglement and continuous measurement is introduced. This paper provides a unified formulation of classical and quantum smoothing and shows a smoothing uncertainty relation. As an example, a communication between two parties via a two mode squeezed state is shown.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum Computing Algorithms and Architecture · Quantum Mechanics and Applications