scholarly journals Experimental Diagnostics of Entanglement Swapping by a Collective Entanglement Test

2020 ◽  
Vol 14 (6) ◽  
Author(s):  
Vojtěch Trávníček ◽  
Karol Bartkiewicz ◽  
Antonín Černoch ◽  
Karel Lemr
Keyword(s):  
Entanglement Swapping ◽  
Experimental Diagnostics

scholarly journals Demonstrating the power of quantum computers, certification of highly entangled measurements and scalable quantum nonlocality

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Elisa Bäumer ◽  
Nicolas Gisin ◽  
Armin Tavakoli
Keyword(s):  
Quantum Computer ◽  
Outcome Measurement ◽  
Bell State ◽  
Bell Inequalities ◽  
Quantum Correlations ◽  
Entanglement Swapping ◽  
Quantum Nonlocality ◽  
Quantum Computers ◽  
Classical Models ◽  
Quantum Phenomena

AbstractIncreasingly sophisticated quantum computers motivate the exploration of their abilities in certifying genuine quantum phenomena. Here, we demonstrate the power of state-of-the-art IBM quantum computers in correlation experiments inspired by quantum networks. Our experiments feature up to 12 qubits and require the implementation of paradigmatic Bell-State Measurements for scalable entanglement-swapping. First, we demonstrate quantum correlations that defy classical models in up to nine-qubit systems while only assuming that the quantum computer operates on qubits. Harvesting these quantum advantages, we are able to certify 82 basis elements as entangled in a 512-outcome measurement. Then, we relax the qubit assumption and consider quantum nonlocality in a scenario with multiple independent entangled states arranged in a star configuration. We report quantum violations of source-independent Bell inequalities for up to ten qubits. Our results demonstrate the ability of quantum computers to outperform classical limitations and certify scalable entangled measurements.

Entanglement swapping with non-Gaussian resources

2011 ◽  
Vol 58 (7) ◽  
pp. 593-598 ◽  
Author(s):  
Ye-Qi Zhang ◽  
Jing-Bo Xu
Keyword(s):  
Entanglement Swapping ◽  
Non Gaussian

scholarly journals Deterministic CNOT gate and entanglement swapping for photonic qubits using a quantum-dot spin in a double-sided optical microcavity

2013 ◽  
Vol 377 (40) ◽  
pp. 2870-2876 ◽  
Author(s):  
Hong-Fu Wang ◽  
Jing-Ji Wen ◽  
Ai-Dong Zhu ◽  
Shou Zhang ◽  
Kyu-Hwang Yeon
Keyword(s):  
Quantum Dot ◽  
Entanglement Swapping ◽  
Cnot Gate ◽  
Optical Microcavity

Multiple pulse-mode Bell states heralded via entanglement swapping

2021 ◽  
Author(s):  
Sofiane Merkouche ◽  
Valerian Thiel ◽  
Alex O.C. Davis ◽  
Brian J. Smith
Keyword(s):  
Entanglement Swapping ◽  
Pulse Mode ◽  
Bell States ◽  
Multiple Pulse

scholarly journals Macroscopic Entanglement by Entanglement Swapping

2006 ◽  
Vol 97 (15) ◽  
Author(s):  
Stefano Pirandola ◽  
David Vitali ◽  
Paolo Tombesi ◽  
Seth Lloyd
Keyword(s):  
Entanglement Swapping ◽  
Macroscopic Entanglement

scholarly journals Purification via entanglement swapping and conserved entanglement

1999 ◽  
Vol 60 (1) ◽  
pp. 194-197 ◽  
Author(s):  
S. Bose ◽  
V. Vedral ◽  
P. L. Knight
Keyword(s):  
Entanglement Swapping

scholarly journals Entanglement swapping in the process of two-level atoms interacting with cavity fields of coherent states

2004 ◽  
Vol 53 (11) ◽  
pp. 3733
Author(s):  
Lai Zhen-Jiang ◽  
Yang Zhi-Yong ◽  
Bai Jin-Tao ◽  
Sun Zhong-Yu
Keyword(s):  
Coherent States ◽  
Entanglement Swapping

scholarly journals Effects of EOS and constitutive models on simulating copper shaped charge jets in ALEGRA

2019 ◽  
Author(s):  
Robert L. Doney ◽  
John H. J. Niederhaus ◽  
Timothy J. Fuller ◽  
Matthew J. Coppinger
Keyword(s):  
Threshold Stress ◽  
Equations Of State ◽  
Constitutive Models ◽  
Shaped Charge ◽  
Material Models ◽  
Us Army ◽  
Mechanical Threshold ◽  
The Us ◽  
Computational Resources ◽  
Experimental Diagnostics

Abstract Metallic shaped charge jets (SCJ) have been studied for many decades across multiple communities for applications ranging from military warheads to earth penetrators for accessing oil-rich areas [1]. Researchers have had varied success in modeling these jets using simulation codes such as CTH, ALEGRA, and ALE3D. Recently, a large amount of work has been performed at the US Army Research Lab investigating the behavior of jets with increasingly sophisticated experimental diagnostics. Advances in computational resources, code enhancements, and material models have allowed us to model jets and probe uncertainties caused by algorithms, equations of state (EOS), constitutive models, and any of the available parameters each one provides. In this work we explore the effects that various EOS and constitutive models have on the development and characteristics of a 65-mm diameter, 2D copper SCJ using the Sandia National Laboratories’ multiphysics hydrocode, ALEGRA [2]. Specifically, we evaluate the tabular SESAME 3320 [3], 3325 [4-5], and 3337 [6] EOS models, analytic EOS (ANEOS) 3331 [7], as well as the Johnson-Cook (JC) [8], Zerilli-Armstrong (ZA) [9], Preston-Tonks-Wallace (PTW) [10], Steinberg-Guinan-Lund (SGL) [11-12], and Mechanical Threshold Stress (MTS) [13] constitutive models. Note that while the SGL model supports rate-dependence, there is no current characterization for copper, thus we are using rate-independent version. We do not consider the MieGrüneisen equation of state here as we expect parts of the jet to be near or cross into melt.

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