Results 71 to 80 of about 25,720 (285)

Skew information correlations beyond entanglement in dissipative two Su(2)-systems

open access: yesResults in Physics, 2019
We investigate the dynamics of quantum correlations [including skew information correlations beyond entanglement] of two isolated Su(2)-systems that are initially in a maximum Bell state or in a separable state.
A.-B.A. Mohamed, H. Eleuch
doaj   +1 more source

Hawking effect can generate physically inaccessible genuine tripartite nonlocality

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We explore the acceleration effect on the genuine tripartite nonlocality (GTN) for one or two accelerated detector(s) coupled to the vacuum field with initial mixed tripartite states.
Tinggui Zhang, Xin Wang, Shao-Ming Fei
doaj   +1 more source

Entanglement dynamics of bipartite system in squeezed vacuum reservoirs

open access: yes, 2010
Entanglement plays a crucial role in quantum information protocols, thus the dynamical behavior of entangled states is of a great importance. In this paper we suggest a useful scheme that permits a direct measure of entanglement in a two-qubit cavity ...
Aurelian Isar   +8 more
core   +2 more sources

Entanglement Trapping in Structured Environments [PDF]

open access: yes, 2008
The entanglement dynamics of two independent qubits each embedded in a structured environment under conditions of inhibition of spontaneous emission is analyzed, showing entanglement trapping.
Bruno Bellomo   +7 more
core   +2 more sources

Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife

open access: yesBiological Reviews, EarlyView.
ABSTRACT Highly pathogenic avian influenza (HPAI) has become a critical threat to wildlife, shifting from a seasonal epizootic to a persistent, year‐round panzootic with global consequences. Here, we summarise the origin, evolutionary mechanisms, and expanding host range of the current H5N1 virus (clade 2.3.4.4b) and assess its impact on wildlife. Over
Ulrich Knief   +4 more
wiley   +1 more source

Dynamics of qubit entanglement in three-qubit Jaynes–Cummings model for biseparable intial states

open access: yesФизика волновых процессов и радиотехнические системы
Background. To operate a quantum computer, a set of universal gates must be implemented, such as a two-cubit gate of the controlled negation type plus one-cubit spins. As a universal alternative, three-cubic-bit gates may be used.
Alexander R. Bagrov, Eugene K. Bashkirov
doaj   +1 more source

Coherent State Control to Recover Quantum Entanglement and Coherence

open access: yesEntropy, 2019
How to analytically deal with the entanglement and coherence dynamics of separated Jaynes−Cummings nodes with continuous-variable fields is still an open question. We here generalize this model to a more common situation including either a small or
Li-Tuo Shen   +2 more
doaj   +1 more source

Resilience Practices and Post‐Traumatic Growth Among Sudanese IDPs

open access: yesConflict Resolution Quarterly, EarlyView.
ABSTRACT In this paper we examine the resilience of internally displaced persons (IDPs) in Sudan who have endured various forms of suffering resulting from being targeted or trapped by militants involved in large‐scale violence. Upon escaping the conflict zones, the civilians exhibit strength, adaptability, and wisdom in the face of various threats to ...
Karina Korostelina   +2 more
wiley   +1 more source

Entanglement harvesting and quantum discord of alpha vacua in de Sitter space

open access: yesJournal of High Energy Physics
The CPT invariant vacuum states of a scalar field in de Sitter space, called α-vacua, are not unique. We explore the α-vacua from the quantum information perspective by a pair of static Unruh-DeWitt (UDW) detectors coupled to a scalar field with either ...
Feng-Li Lin, Sayid Mondal
doaj   +1 more source

Sudden vanishing and reappearance of nonclassical effects: General occurrence of finite-time decays and periodic vanishings of nonclassicality and entanglement witnesses

open access: yes, 2011
Analyses of phenomena exhibiting finite-time decay of quantum entanglement have recently attracted considerable attention. Such decay is often referred to as sudden vanishing (or sudden death) of entanglement, which can be followed by its sudden ...
A. Lukš   +11 more
core   +1 more source

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