Entangled Andreev pairs and collective excitations in nanoscale superconductors

Nature Physics

Volumn 3, Issue 7, 2007, Pages 455-459

  Yeyati, A Levy ^a   Bergeret, F S ^a   Martin Rodero A ^a   Klapwijk, T M ^b  

^a UNIVERSIDAD AUTÓNOMA DE MADRID   (Spain)

^b DELFT UNIVERSITY OF TECHNOLOGY   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRONS; NANOTECHNOLOGY; QUANTUM COMPUTERS; SOLID STATE DEVICES; SUPERCONDUCTING MATERIALS;

COLLECTIVE EXCITATIONS; CROSSED ANDREEV REFLECTIONS; ELASTIC TRANSMISSIONS; HYBRID NANOSTRUCTURES; LOW-ENERGY COLLECTIVE EXCITATIONS; LOW-ENERGY EXCITATIONS; NANO-SCALE SUPERCONDUCTORS; SUPERCONDUCTING STRUCTURE;

QUANTUM ENTANGLEMENT;

EID: 34547302246     PISSN: 17452473     EISSN: 17452481     Source Type: Journal    
DOI: 10.1038/nphys621     Document Type: Article

References (21)

1. Redler, F., Sukhorukov, E. V. & Loss, D. Andreevtunneling, Coulomb blockade, and resonant transport of nonlocal spin-entangled electrons. Phys. Rev. B 63, 165314 (2001).
2. Chtchelkatchev, N.M., Blatter, G., Lesovik, G. B. & Martin, T. Bell inequalities and entanglement in solid-state devices. Phys. Rev. B 66, 161320 (2002).
3. Bena, C., Vishveshwara, S., Balents, L. & Fisher, M. F. A. Quantum entanglement in carbon nanotubes. Phys. Rev. Lett. 89, 037901 (2002).
4. Samuelsson, F., Sukhorukov, E. V. & Büttiker, M. Orbital entanglement and violation of Bell inequalities in mesoscopic conductors. Phys. Rev. Lett. 91, 157002 (2003).
5. Prada, E. & Sols, F. Entangled electron current through finite size normal-superconductor tunneling structures. Em. Phys. J. B 40, 379-396 (2004).
6. Byers, J. M. & Flatté, M. E. Probing spatial correlations with nanoscale two-contact tunneling. Phys. Rev. Lett. 74, 306-309 (1995).
7. den Hartog, S. G. et al Iransport in multiterminal normal-superconductor devices: Reciprocity relations, negative and nonlocal resistances, and reen trance of the proximity effect. Phys. Rev. Lett. 77, 4954-4957 (1996).
8. Deutscher, G. & Feinberg, D. Coupling superconducting-ferromagnetic point contacts by Andreev reflections. Appl. Phys. Lett. 76, 487-489 (2000).
9. Mooij, J. E. & Schön, G. Propagating plasma mode in thin superconducting filaments. Phys. Rev. Lett. 55, 114-117 (1985).
10. Beckmann, D., Weber, H. B. & Löhneysen, H. v. Evidence for crossed Andreev reflection in superconductor-ferromagnet hybrid structures. Phys. Rev. Lett. 93, 197003 (2004).
11. Russo, S., Kroug, M., Klapwijk, T. M. & Morpurgo, A. F. Experimental observation of bias-dependent nonlocal Andreev reflection. Phys. Rev. Lett. 95, 027002 (2005).
12. Falci, G., Feinberg, D. & Hekking, F. W. J. Correlated tunneling into a superconductor in amultiprobe hybrid structure. Europhys. Lett. 54, 255-261 (2001).
13. Feinberg, D. Andreev scattering and cotunneling between two superconductor-normal metal interfaces: the dirty limit. Eur. Phys. J. B 36, 419-422 (2003).
14. Mélin, R. & Feinberg, D. Sign of the crossed conductances at aferromagnet/superconductor/ferromagnet double interface. Phys. Rev. B 70, 174509-174518 (2004).
15. Hermele, M., Rafael, G., Fisher, M. P. A. & Goldbart, P. M. Fate of the Josephson effect in thin-film superconductors. Nature Phys. 1, 117-121 (2005).
16. Orlando, T. P. & Delin, K. E. Foundations of Applied Superconductivity (Addison-Wesley, Reading, 1991).
17. Gubin, A. L et al. Dependence of magnetic penetration depth on the thickness of superconducting Nb thin films. Phys. Rev. B 72, 064503 (2005).
18. Parage, F., Doria, M. M. & Buisson, O. Plasma modes in periodic two-dimensional superconducting-wire networks. Phys. Rev. B 58, R8921-R8924 (1998).
19. Cadden-Zimansky, P. & Chandrasekhar, V. Non-local correlations in normal metal-superconducting systems. Phys. Rev. Lett. 97, 237003 (2006).
20. Beckmann, D. & Lohneysen, H. v. Negative four-terminal resistance as a probe of crossed Andreev reflection. Preprint at 〈http://arxiv.org/abs/ cond-mat/0609766〉 (2006).
21. Fertig, H. A. & Das Sarma, S. Collective modes in layered superconductors. Phys. Rev. Lett. 65, 1482-1485 (1990).