Continuous-variable entanglement sharing in noninertial frames

Adesso, Gerardo; Fuentes-Schuller, Ivette; Ericsson, Marie

doi:10.1103/physreva.76.062112

Cited by 155 publications

(227 citation statements)

References 58 publications

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“…The case of continuous variables was studied in Ref. [31], where it was shown that the entanglement is completely destroyed in the limit of infinite acceleration for scalar fields, in contrast to what was found for Dirac ones [32]. In a recent work, two of the present authors observed sudden death of entanglement in a two-qubit system when one of the partners is accelerated by some external agent [33].…”

Section: Introductionmentioning

confidence: 91%

Sudden change in quantum and classical correlations and the Unruh effect

et al. 2010

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We 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.

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Section: Introductionmentioning

confidence: 91%

Sudden change in quantum and classical correlations and the Unruh effect

et al. 2010

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“…(1)). Since the loss of entanglement occurs due to the leakage of information into the inaccessible regions [43,44] as a result of the Unruh effect. The quicker decrease in entanglement with the increasing acceleration arises because the information leakage is higher due to the acceleration of two observers as compare to the case of one accelerated observer.…”

Section: Dynamics Of Tripartite Entanglement In Accelerated Framesmentioning

confidence: 99%

Tripartite entanglement of fermionic system in accelerated frames

Khan

2014

Annals of Physics

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The dynamics of tripartite entanglement of fermionic system in noninertial frames through linear contraction criterion when one or two observers are accelerated is investigated. In one observer accelerated case the entanglement measurement is not invariant with respect to the partial realignment of different subsystems and for two observers accelerated case it is invariant. It is shown that the acceleration of the frame does not generate entanglement in any bipartite subsystems. Unlike the bipartite states, the genuine tripartite entanglement does not completely vanish in both one observer accelerated and two observers accelerated cases even in the limit of infinite acceleration. The degradation of tripartite entanglement is fast when two observers are accelerated than when one observer is accelerated. It is shown that tripartite entanglement is a better resource for quantum information processing than the bipartite entanglement in noninertial frames .

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“…Following the pioneering work presented by Peres et al [6], many authors [7][8][9][10][11][12][13][14][15][16][17][18][19] considered the quantum entanglement in a relativistic setting. Recently, Adesso et al [20] discussed the entanglement sharing of a scalar field in the noninertial frame and found that the classical correlation is independent of the acceleration of the observer if the other observer stays stationary. Juan Len et al studied the Dirac entanglement in both the spin and occupation number cases [21], and Mann et al discussed the speeding up entanglement degradation of the scalar field in the noninertial frame [22].…”

Section: Introductionmentioning

confidence: 99%

Classical correlation and quantum discord sharing of Dirac fields in noninertial frames

2010

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The classical and quantum correlations sharing between modes of the Dirac fields in the noninertial frame are investigated. It is shown that: (i) The classical correlation for the Dirac fields decreases as the acceleration increases, which is different from the result of the scalar field that the classical correlation is independent of the acceleration; (ii) There is no simple dominating relation between the quantum correlation and entanglement for the Dirac fields, which is unlike the scalar case where the quantum correlation is always over and above the entanglement; (iii) As the acceleration increases, the correlations between modes I and II and between modes A and II increase, but the correlations between modes A and I decrease.

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Continuous-variable entanglement sharing in noninertial frames

Cited by 155 publications

References 58 publications

Sudden change in quantum and classical correlations and the Unruh effect

Sudden change in quantum and classical correlations and the Unruh effect

Tripartite entanglement of fermionic system in accelerated frames

Classical correlation and quantum discord sharing of Dirac fields in noninertial frames

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