Results 31 to 40 of about 855,287 (330)

The Geometry of Entanglement Sudden Death [PDF]

open access: yes, 2007
In open quantum systems, entanglement can vanish faster than coherence. This phenomenon is usually called sudden death of entanglement. In this paper sudden death of entanglement is discussed from a geometrical point of view, in the context of two qubits.
Diósi L   +8 more
core   +2 more sources

Comparison of electrocardiograms (ECG) waveforms and centralized ECG measurements between a simple 6‐lead mobile ECG device and a standard 12‐lead ECG

open access: yesAnnals of Noninvasive Electrocardiology, 2021
Background Interval duration measurements (IDMs) were compared between standard 12‐lead electrocardiograms (ECGs) and 6‐lead ECGs recorded with AliveCor's KardiaMobile 6L, a hand‐held mobile device designed for use by patients at home.
Robert Kleiman   +7 more
doaj   +1 more source

Factors Associated with Mothers' Knowledge about Sudden Infant Death Syndrome

open access: yesO Mundo da Saúde, 2023
Sudden Infant Death Syndrome is defined as the death of any infant under one year of age, with a sleeping position, in the prone position, being the most important risk factor.
Mariana Gabriela Anselmo   +5 more
doaj   +1 more source

Dynamics of the entanglement between two oscillators in the same environment [PDF]

open access: yes, 2008
We provide a complete characterization of the evolution of entanglement between two oscillators coupled to a common environment. For initial Gaussian states we identify three phases with different qualitative long time behavior: There is a phase where ...
Paz, Juan Pablo, Roncaglia, Augusto J.
core   +2 more sources

Racing‐associated fatalities in Norwegian and Swedish harness racehorses: Incidence rates, risk factors, and principal postmortem findings

open access: yesJournal of Veterinary Internal Medicine, 2022
Background There are no reports on the number of fatalities or causes of death in the Norwegian and Swedish harness racehorses. Objectives The incidence rates (IRs), risk factors, and postmortem findings in horses that died or were euthanized associated ...
Ingunn Risnes Hellings   +5 more
doaj   +1 more source

Brugada Syndrome and GPD1L: Definite Genotype-Phenotype Association?

open access: yesCardiogenetics
The GPD1L gene encodes a small cytoplasmic protein that is involved in the regulation of sodium currents. Alterations in this gene have been associated with Brugada syndrome.
Andrea Greco   +10 more
doaj   +1 more source

Non-classical correlation of cascaded photon pairs emitted from quantum dot

open access: yes, 2011
We studied the quantum correlation between the photon pairs generated by biexciton cascade decays of self-assembled quantum dots, and determined the temperature behavior associated with so-called sudden change of the quantum correlation. The relationship
Ge, Rong-Chun   +4 more
core   +1 more source

Entanglement Sudden Death and Sudden Birth in Semiconductor Microcavities

open access: yes, 2011
We explore the dynamics of the entanglement in a semiconductor cavity QED containing a quantum well.
Abdel-Khalek, S.   +2 more
core   +1 more source

Robustness of quantum discord to sudden death [PDF]

open access: yes, 2009
We calculate the dissipative dynamics of two-qubit quantum discord under Markovian environments. We analyze various dissipative channels such as dephasing, depolarizing, and generalized amplitude damping, assuming independent perturbation, in which each ...
Fanchini, F. F.   +3 more
core   +2 more sources

Sudden death of effective entanglement

open access: yes, 2010
Sudden death of entanglement is a well-known effect resulting from the finite volume of separable states. We study the case when the observer has a limited measurement capability and analyse the effective entanglement, i.e.
I. L. Chuang   +4 more
core   +1 more source

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