Results 81 to 90 of about 457,528 (172)

Coherent Control of Quantum Entropy via Quantum Interference in a Four-Level Atomic System [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2013
The time evaluation of quantum entropy in a four-level double- type atomic system is theoretically investigated. Quantum entanglement of the atom and its spontaneous emission fields is then discussed via quantum entropy.
M. Sahrai   +3 more
doaj  

Do maximally entangled states always have an advantage over non-maximally entangled states in Schwarzschild black hole? [PDF]

open access: yesarXiv
It is generally believed that quantum entanglement in the maximally entangled states is greater than quantum entanglement in the non-maximally entangled states under a relativistic setting. In this paper, we study quantum entanglement for four different types of Bell-like states of the fermionic modes near the event horizon of a Schwarzschild black ...
arxiv  

Quantum discord and entanglement in grover search algorithm

open access: yesOpen Physics, 2016
Imperfections and noise in realistic quantum computers may seriously affect the accuracy of quantum algorithms. In this article we explore the impact of static imperfections on quantum entanglement as well as non-entangled quantum correlations in Grover ...
Ye Bin   +3 more
doaj   +1 more source

A brand new strategy of quantum relay strategy based on entanglement swapping

open access: yesDianxin kexue, 2016
Quantum protocols based on entanglement are known as information security,reliability,flexibility and a broad prospect in use.Meanwhile,the fidelity of photons is also required.A new quantum relay strategy was proposed.By setting multi-relays between ...
Min XU   +3 more
doaj   +2 more sources

Does anti-Unruh effect assist quantum entanglement and coherence?

open access: yesNew Journal of Physics
In this paper, we use the concepts of quantum entanglement and coherence to analyze the Unruh and anti-Unruh effects based on the model of Unruh–DeWitt detector.
Shu-Min Wu   +4 more
doaj   +1 more source

Quantum-information distribution via entanglement [PDF]

open access: green, 2000
Mio Murao   +2 more
openalex   +1 more source

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