Entanglement measures of W-state in noninertial frames

Torres-Arenas, Ariadna J.; Qian, Dong; Sun, Guo Hua; Qin, Wen

doi:10.1016/j.physletb.2018.12.010

Cited by 66 publications

(51 citation statements)

References 27 publications

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“…These selected diatomic molecules are homonuclear and heteronuclear, respectively. These diatomic molecules possess the same properties as each diatomic molecule is made of two atoms only and differ from each other in terms of covalent bonding and their geometric structure [54,55]. Our choice of these two molecules is based on the available data of their spectroscopic parameters as given in Table I.…”

Section: Spectroscopic Values For Some Diatomic Moleculesmentioning

confidence: 99%

“…Fisher information, usually regarded as the measure of information entropy [14,38], is the control of localization of the probability density. It can be seen as a measure of oscillator degree, which has applications in quantum mechanical kinetic energy of the system [54]. Thus, Fisher information in position space and momentum space is expressed as [14,38]…”

Section: Fisher Informationmentioning

confidence: 99%

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Information Entropies for H2 and ScF Diatomic Molecules with Deng- Fan-Eckart Potential

et al. 2020

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In this study, the Shannon entropy and the Fisher information is investigated with molecular Deng-Fan-Eckart potential for the diatomic molecules and ScF in position and momentum spaces in three dimensions for the ground and the excited states. The results were numerically obtained for diatomic molecules. Localization is observed for Shannon entropy and delocalization for Fisher information for both molecules in the position and momentum spaces. The uncertainty relations for the selected diatomic molecules were satisfied accordingly.

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Section: Spectroscopic Values For Some Diatomic Moleculesmentioning

confidence: 99%

Section: Fisher Informationmentioning

confidence: 99%

Information Entropies for H2 and ScF Diatomic Molecules with Deng- Fan-Eckart Potential

et al. 2020

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“…Bipartite entanglement under the joint influence of both environmental noise and Unruh effect [31,32] was also studied. Besides bipartite systems, tripartite entanglement in the relativistic framework was also investigated [33][34][35][36][37][38][39]. Note that, in these works, the measure of GTE is based on the concept of logarithmic negativity [40,41], and the measure of GTE based on concurrence [42,43] was not used in Schwarzschild spacetime.…”

Section: Introductionmentioning

confidence: 99%

Genuine tripartite nonlocality and entanglement in curved spacetime

Zeng

2022

Eur. Phys. J. C

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We study the genuine tripartite nonlocality (GTN) and the genuine tripartite entanglement (GTE) of Dirac fields in the background of a Schwarzschild black hole. We find that the Hawking radiation degrades both the physically accessible GTN and the physically accessible GTE. The former suffers from “sudden death” at some critical Hawking temperature, and the latter approaches to the nonzero asymptotic value in the limit of infinite Hawking temperature. We also find that the Hawking effect cannot generate the physically inaccessible GTN, but can generate the physically inaccessible GTE for fermion fields in curved spacetime. These results show that on the one hand the GTN cannot pass through the event horizon of black hole, but the GTE do can, and on the other hand the surviving physically accessible GTE and the generated physically inaccessible GTE for fermions in curved spacetime are all not nonlocal. Some monogamy relations between the physically accessible GTE and the physically inaccessible GTE are found.

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“…Apart from the pure quantum-mechanical aspect, it is also important to study quantum resource under the relativistic framework [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. It is not only an interesting theoretical topic from the view of noninertial observers, but also a very practical consideration, because many modern experiments about quantum information involve relativistic photons or particles [31,32].…”

Section: Introductionmentioning

confidence: 99%

Quantum coherence and distribution of N-partite bosonic fields in noninertial frame

Wu,

Zeng,

Cao

2022

Preprint

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We study the quantum coherence and its distribution of N -partite GHZ and W states of bosonic fields in the noninertial frames with arbitrary number of acceleration observers. We find that the coherence of both GHZ and W state reduces with accelerations and freezes in the limit of infinite accelerations. The freezing value of coherence depends on the number of accelerated observers. The coherence of N -partite GHZ state is genuinely global and no coherence exists in any subsystems. For the N -partite W state, however, the coherence is essentially bipartite types, and the total coherence is equal to the sum of coherence of all the bipartite subsystems.

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Entanglement measures of W-state in noninertial frames

Cited by 66 publications

References 27 publications

Information Entropies for H2 and ScF Diatomic Molecules with Deng- Fan-Eckart Potential

Information Entropies for H2 and ScF Diatomic Molecules with Deng- Fan-Eckart Potential

Genuine tripartite nonlocality and entanglement in curved spacetime

Quantum coherence and distribution of N-partite bosonic fields in noninertial frame

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