Celeri, L. C.Landulfo, A. G. S. [UNESP]Serra, R. M.Matsas, George Emanuel Avraam [UNESP]2013-09-302014-05-202013-09-302014-05-202010-06-28Physical Review A. College Pk: Amer Physical Soc, v. 81, n. 6, p. 8, 2010.1050-2947http://hdl.handle.net/11449/24429We use the Unruh effect to analyze the dynamics of classical and quantum correlations for a two-qubit system when one of them is uniformly accelerated for a finite amount of proper time. We show that the quantum correlation is completely destroyed in the limit of infinite acceleration, while the classical one remains nonzero. In particular, we show that such correlations exhibit the so-called sudden-change behavior as a function of acceleration. Eventually, we discuss how our results can be interpreted when the system lies in the vicinity of the event horizon of a Schwarzschild black hole.8engSudden change in quantum and classical correlations and the Unruh effectArtigo10.1103/PhysRevA.81.062130WOS:000279261300002Acesso restritoWOS000279261300002.pdf8525680767393616