Local Transformation of Two Einstein-Podolsky-Rosen Photon Pairs into a Three-Photon<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>W</mml:mi></mml:math>State

Tashima, Toshiyuki; Wakatsuki, T.; Özdemir, Şahin Kaya; Yamamoto, Takashi; Koashi, Masato; Imoto, Nobuyuki

doi:10.1103/physrevlett.102.130502

Cited by 95 publications

(70 citation statements)

References 25 publications

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“…In Ref. [6], the authors experimentally demonstrated a transformation of two Einstein-Podolsky-Rosen photon pairs distributed among three parties into a three-photon W state using local operations and classical communication. We also proposed a linear optical method to convert N − 1 (N ≥ 3) entangled two-photon pairs distributed among N parties into a N-photon W state [7].…”

Section: Introductionmentioning

confidence: 99%

Direct conversion of a three-atom W state to a Greenberger–Horne–Zeilinger state in spatially separated cavities

Wang

Cui

et al. 2016

J. Phys. B: At. Mol. Opt. Phys.

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State conversion between Greenberger-Horne-Zeilinger (GHZ) state and W state is an open challenging problem because they cannot be converted to each other only by local operations and classical communication. Here we propose a cavity quantum electrodynamics method based on interference of polarized photons emitted by the atoms trapped in spatially separated optical cavities that can convert a three-atom W state to a GHZ state. We calculate the success probability and fidelity of the converted GHZ state when the cavity decay, atomic spontaneous decay, and photon leakage of the cavities are taken into account for a practical system, which shows that the proposed scheme is feasible and within the reach of current experimental technology.

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Section: Introductionmentioning

confidence: 99%

Direct conversion of a three-atom W state to a Greenberger–Horne–Zeilinger state in spatially separated cavities

Wang

Cui

et al. 2016

J. Phys. B: At. Mol. Opt. Phys.

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“…Construction and processing of multi-partite entangled states, state ordering and relation with quantum Fisher information is a hot topic in related research areas. [6,[10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

The relation between majorization theory and quantum information from entanglement monotones perspective

Erol

2016

AIP Conference Proceedings

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Abstract. Entanglement has been studied extensively for understanding the mysteries of nonclassical correlations between quantum systems. In the bipartite case, there are well known monotones for quantifying entanglement such as concurrence, relative entropy of entanglement (REE) and negativity, which cannot be increased via local operations. The study on these monotones has been a hot topic in quantum information [1][2][3][4][5][6][7] in order to understand the role of entanglement in this discipline. It can be observed that from any arbitrary quantum pure state a mixed state can obtained. A natural generalization of this observation would be to consider local operations classical communication (LOCC) transformations between general pure states of two parties. Although this question is a little more difficult, a complete solution has been developed using the mathematical framework of the majorization theory [8].In this work, we analyze the relation between entanglement monotones concurrence and negativity with respect to majorization for general two-level quantum systems of two particles.

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“…However, since it must be used in many information processing tasks, the production and processing of multilateral quantum entangled systems is at the top of the hot topics of recent years [2][3][4][5][6][7][8][9]. Much of the work in the basic quantum technologies, such as quantum cryptography, communications, and computers, requires multi-partite entangled systems such as GHZ, W [10,11].…”

Section: Introductionmentioning

confidence: 99%

Behaviour of Quantum Correlations and Violation of Bell Inequalities in some Noisy Channels

Erol¹

2017

Preprint

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Quantum Correlations are studied extensively in quantum information domain. Entanglement Measures and Quantum Discord are good examples of these actively studied correlations. Detection of violation in Bell inequalities is also a widely active area in quantum information theory world. In this work, we revisit the problem of analyzing the behavior of quantum correlations and violation of Bell inequalities in noisy channels. We extend the problem defined in a recent study by observing the changes in negativity measure, quantum discord and a modified version of Horodecki measure for violation of Bell inequalities under amplitude damping, phase damping and depolarizing channels. We report different interesting results for each of these correlations and measures. All these correlations and measures decrease under decoherence channels, but some changes are very dramatical comparing to others. We investigate also separability conditions of example studied states.

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Local Transformation of Two Einstein-Podolsky-Rosen Photon Pairs into a Three-PhotonWState

Cited by 95 publications

References 25 publications

Direct conversion of a three-atom W state to a Greenberger–Horne–Zeilinger state in spatially separated cavities

Direct conversion of a three-atom W state to a Greenberger–Horne–Zeilinger state in spatially separated cavities

The relation between majorization theory and quantum information from entanglement monotones perspective

Behaviour of Quantum Correlations and Violation of Bell Inequalities in some Noisy Channels

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