Entanglement witnessing in superconducting beamsplitters

被引：8
|
作者：
Soller, H. [1 ]
Hofstetter, L. [2 ]
Reeb, D. [3 ]
机构：
[1] Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany
[2] Univ Basel, Dept Phys, CH-4056 Basel, Switzerland
[3] Tech Univ Munich, Dept Math, D-85748 Garching, Germany
来源：
EPL | 2013年 / 102卷 / 05期
关键词：
MAGNETIC TUNNEL-JUNCTIONS; NOISE CROSS-CORRELATION; QUANTUM; RESONANCE; ELECTRONS; TORQUE;
D O I：
10.1209/0295-5075/102/50009
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We analyse a large class of superconducting beamsplitters for which the Bell parameter (CHSH violation) is a simple function of the spin detector efficiency. For these superconducting beamsplitters all necessary information to compute the Bell parameter can be obtained in Y-junction setups for the beamsplitter. Using the Bell parameter as an entanglement witness, we propose an experiment which allows to verify the presence of entanglement in Cooper pair splitters. Copyright (c) EPLA, 2013
引用
收藏
页数：5
相关论文
共 50 条
  • [1] From squeezing to Gaussian entanglement via beamsplitters
    Fu, Shuangshuang
    Luo, Shunlong
    Zhang, Yue
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2020, 53 (08)
  • [2] Witnessing entanglement by proxy
    Baeuml, Stefan
    Bruss, Dagmar
    Huber, Marcus
    Kampermann, Hermann
    Winter, Andreas
    NEW JOURNAL OF PHYSICS, 2015, 18
  • [3] Ultrafine Entanglement Witnessing
    Shahandeh, Farid
    Ringbauer, Martin
    Loredo, Juan C.
    Ralph, Timothy C.
    PHYSICAL REVIEW LETTERS, 2017, 118 (11)
  • [4] Witnessing entanglement without entanglement witness operators
    Pezze, Luca
    Li, Yan
    Li, Weidong
    Smerzi, Augusto
    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2016, 113 (41) : 11459 - 11464
  • [5] Witnessing quantum entanglement in ensembles of nitrogen-vacancy centers coupled to a superconducting resonator
    Maleki, Yusef
    Zheltikov, Aleksei M.
    OPTICS EXPRESS, 2018, 26 (14): : 17849 - 17858
  • [6] Entanglement witnessing with untrusted detectors
    Viola, Giuseppe
    Miklin, Nikolai
    Gachechiladze, Mariami
    Pawlowski, Marcin
    JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2023, 56 (42)
  • [7] Witnessing entanglement in an undergraduate laboratory
    Beck, Marisol N.
    Beck, M.
    AMERICAN JOURNAL OF PHYSICS, 2016, 84 (02) : 87 - 94
  • [8] Witnessing entanglement in hybrid systems
    Borrelli, Massimo
    Rossi, Matteo
    Macchiavello, Chiara
    Maniscalco, Sabrina
    PHYSICAL REVIEW A, 2014, 90 (02):
  • [9] Witnessing entanglement in experiments with correlated noise
    Dirkse, Bas
    Pompili, Matteo
    Hanson, Ronald
    Walter, Michael
    Wehner, Stephanie
    QUANTUM SCIENCE AND TECHNOLOGY, 2020, 5 (03)
  • [10] Quantum variational learning for entanglement witnessing
    Scala, Francesco
    Mangini, Stefano
    Macchiavello, Chiara
    Bajoni, Daniele
    Gerace, Dario
    2022 INTERNATIONAL JOINT CONFERENCE ON NEURAL NETWORKS (IJCNN), 2022,
12345