Quantum decoherence - Wikipedia
Quantum decoherence is the loss of quantum coherence. Quantum decoherence has been studied to understand how quantum systems convert to systems which can be explained by classical mechanics.
Coherence (physics) - Wikipedia
The classical electromagnetic field exhibits macroscopic quantum coherence. The most obvious example is the carrier signal for radio and TV. They satisfy Glauber's quantum description of coherence.
Rev. Mod. Phys. 89, 041003 (2017) - Colloquium: Quantum coherence …
2017年10月30日 · Quantum coherence in many-body systems embodies the essence of entanglement and is an essential ingredient for a plethora of physical phenomena in quantum optics, quantum information, solid state physics, and nanoscale thermodynamics.
Physicists find quantum coherence and quantum entanglement …
2015年6月25日 · Quantum coherence deals with the idea that all objects have wave-like properties. If an object's wave-like nature is split in two, then the two waves may coherently interfere...
an overview for the conceptual implications and basic connections of quantum coherence, quantum correlations, and their potential applications in various related subjects of physics. PACS numbers: 03.65.Ud, 03.65.Ta, 03.67.Mn
Quantum coherence measures based on Fisher information with applications
2021年1月5日 · In this paper, several reliable quantum coherence measures based on quantum Fisher information (QFI) are presented. For pure states, this coherence measure is equivalent to that based on skew information, while for mixed states, we first define two natural coherence measures via QFI and find that the two definitions are exactly identical.
Quantum coherence is an essential ingredient in quantum information processing and plays a central role in emergent fields such as nanoscale thermodynamics and quantum biology. However, our understanding and quantitative characterization of coherence as an operational resource are still very limited.
Coherence, entanglement, and quantumness in closed and …
2019年5月31日 · First, we show how, in these cases, the presence of multipartite entanglement or quantumness can be faithfully witnessed simply by detecting coherence in the quantum system, while bipartite entanglement or bipartite quantum discord are implied by asymmetry (block coherence) in the system.
[2407.11568] Dynamical Characterization of Quantum Coherence
2024年7月16日 · Quantum coherence, rooted in the superposition nature of quantum mechanics, is one core quantum resource in quantum technologies. Until now, various measures, operational interpretations and generalizations about coherence have been proposed.
Quantum Coherence - Vocab, Definition, and Must Know Facts
Quantum coherence refers to the property of a quantum system where the different possible states can exhibit interference effects due to their superposition. This phenomenon is essential in various quantum technologies, influencing how quantum bits behave during operations and measurements, and plays a crucial role in enhancing the precision of ...
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