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Information Theoretical Analysis of Quantum Mixedness in a Finite Model of Interacting Fermions [PDF]

open access: yesEntropy
In this study, we utilize information theory tools to investigate notable features of the quantum degree of mixedness (Cf) in a finite model of N interacting fermions. This model serves as a simplified proxy for an atomic nucleus, capturing its essential
Diana Monteoliva   +2 more
exaly   +4 more sources

Entropic Uncertainty for Two Coupled Dipole Spins Using Quantum Memory under the Dzyaloshinskii–Moriya Interaction [PDF]

open access: yesEntropy, 2021
In the thermodynamic equilibrium of dipolar-coupled spin systems under the influence of a Dzyaloshinskii–Moriya (D–M) interaction along the z-axis, the current study explores the quantum-memory-assisted entropic uncertainty relation (QMA-EUR), entropy ...
Ahmad N. Khedr   +5 more
doaj   +2 more sources

Negativity vs. purity and entropy in witnessing entanglement [PDF]

open access: yesScientific Reports, 2023
In this paper, we explore the value of measures of mixedness in witnessing entanglement. While all measures of mixedness may be used to witness entanglement, we show that all such entangled states must have a negative partial transpose (NPT).
James Schneeloch   +3 more
doaj   +2 more sources

Trade-offs between coherence and mixedness and their evolution under quantum noise channels

open access: yesResults in Physics, 2023
Generally quantum processes tend to mix the pure input states and degrade the original coherence. Such processes display exactly the trade-offs between the coherence and the mixedness.
Yuan-Hong Tao, Shao-Ming Fei
exaly   +3 more sources

Tracing Genealogies of Mixedness: Social Representations and Definitions of “Eurasian” in Singapore

open access: yesGenealogy, 2021
Social representations theory provides a key lens through which to approach mixed racial and ethnic identities. The concept and contextual histories of “mixedness” highlight how meanings are ascribed and constructed, and social representations of mixed ...
Zarine L Rocha   +2 more
exaly   +3 more sources

Clinical Sociology and Mixedness: Towards Applying Critical Mixed Race Theory in Everyday Life

open access: yesGenealogy, 2022
Research on mixed racial and ethnic identities has developed rapidly over the past decades, increasing in theoretical scope and depth, and exploring mixedness across a growing range of national and social contexts.
Zarine L Rocha
exaly   +3 more sources

Changing from Visibility to Invisibility—An Intersectional Perspective on Mixedness in Switzerland and Morocco

open access: yesGenealogy, 2022
In the context of intermarriage, mixedness can take different forms. Most often, it refers to a mix of class, religion, nationality, ethnicity or ‘race’ in a couple.
Gwendolyn Gilliéron
exaly   +3 more sources

Entropic Uncertainty in Spin XY Model with Long-Range Interactions [PDF]

open access: yesEntropy, 2020
The behavior of the uncertainty relations and their tightness for a system, consisting of two qubits interacting thermally with a magnetic field in the presence of Dzyaloshinskii–Moriya interaction, is discussed, where different types of interaction ...
Nour Zidan
doaj   +2 more sources

Nonclassical Effects Based on Husimi Distributions in Two Open Cavities Linked by an Optical Waveguide [PDF]

open access: yesEntropy, 2020
Nonclassical effects are investigated in a system formed by two quantum wells, each of which is inside an open cavity. The cavities are spatially separated, linked by a fiber, and filled with a linear optical medium.
Abdel-Baset A. Mohamed, Hichem Eleuch
doaj   +2 more sources

Mixedness, Coherence and Entanglement in a Family of Three-Qubit States [PDF]

open access: yesEntropy, 2022
We consider a family of states describing three-qubit systems. We derived formulas showing the relations between linear entropy and measures of coherence such as degree of coherence, first- and second-order correlation functions. We show that qubit–qubit
Joanna K. Kalaga   +3 more
doaj   +2 more sources

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