Journals / Turkish Journal of Physics / 2022 / Cilt: 46 - Sayı: 3

Relativistic tunneling through two “transparent” successive barrier

Pages
113–121
Publication Date
2022-11-01
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Two solutions for energy E above and below the potential square barrier V are found, for both solutions there the apparent superluminal behavior is possible above a threshold of free travelling group velocity (energy) and dependent on the ratio barriers length free path as function of the ratio group velocity - speed of ligh

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In the case of tunneling of relativistic particles, differently from the nonrelativistic case, a limit of “transparent” barrier can also lead to an apparent “superluminal” behavior when considering the phase time.
📊
Key Findings & Data:In this limit, the restricting condition of ”opaque” barrier of the nonrelativistic case is avoided, nevertheless, the very thin width of a single barrier to obtain this “transparent” limit can result in a problem itself, for probing the effect.
💡
Conclusion & Impact:Two solutions for energy E above and below the potential square barrier V are found, for both solutions there the apparent superluminal behavior is possible above a threshold of free travelling group velocity (energy) and dependent on the ratio barriers length free path as function of the ratio group velocity - speed of ligh
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In the case of tunneling of relativistic particles, differently from the nonrelativistic case, a limit of “transparent” barrier can also lead to an apparent “superluminal” behavior when considering the phase time. In this limit, the restricting condition of ”opaque” barrier of the nonrelativistic case is avoided, nevertheless, the very thin width of a single barrier to obtain this “transparent” limit can result in a problem itself, for probing the effect. A combination of two successive transparent barriers can show an apparent “superluminal” behavior along a macroscopic arbitrary distance “L”. Two solutions for energy E above and below the potential square barrier V are found, for both solutions there the apparent superluminal behavior is possible above a threshold of free travelling group velocity (energy) and dependent on the ratio barriers length free path as function of the ratio group velocity - speed of ligh

🔖

Cite This Article

GERMANO, M. (2022). Relativistic tunneling through two “transparent” successive barrier. Turkish Journal of Physics, Cilt: 46 - Sayı: 3, 113–121. https://ajindex.com/articles/613893

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (21)

  1. T. E. Hartman, “Tunneling of a Wave Packet,” J. Appl. Phys. 33 (1962) 3427
  2. M. Büttiker and R. Landauer, “Traversal Time for Tunneling,” Phys. Rev. Lett. 49 (1982) 1739
  3. M. Büttiker, “Larmor precession and the traversal time for tunneling,” Phys. Rev. B 27 (1983) 6178
  4. G. Privitera, G. Salesti, V. S. Olkhovsky and E. Recami, “Tunnelling times: An elementary introduction,” La Rivista del Nuovo Cimento 26 (2003) 1-55
  5. E. H. Hauge and A. M. Støvneng, “Tunneling times: a critical review,” Rev. Mod. Phys. 61 (1989) 917
  6. H. G. Winful, M. Ngom and N. M. Litchinitser, “Relation between quantum tunneling times for relativistic particles,” Phys. Rev. A 70 (2004) 052112
  7. H.G. Winful, “Tunneling time, the Hartman effect, and superluminality: A proposed resolution of an old paradox,” Phys. Reports 436 (2006) 1-69
  8. A.I. Baz’, “Lifetime of intermediate states,” Sov. J. Nucl. Phys. 4 (1967) 182
  9. V.F. Rybachenko, “Time of penetration of a particle through a potential barrier,” Sov. J. Nucl. Phys. 5 (1967) 635
  10. M. B¨uttiker, “Larmor precession and the traversal time for tunneling,” Phys. Rev. B 27 (1983) 6178
  11. D. Sokolovski and L. Baskin, “Traversal time in quantum scattering,” Phys. Rev. A.36 (1987) 4604
  12. D. Bohm, “Quantum theory,” Prentice-Hall, New York, (1951)
  13. E. P. Wigner, “Lower Limit for the Energy Derivative of the Scattering Phase Shift,” Phys. Rev. 98 (1955) 145
  14. H.G. Winful, “Delay Time and the Hartman Effect in Quantum Tunneling,” Phys. Rev. Lett. 91 (2003) 260401
  15. L. Kelvin (W. Thompson), “On the wave produced by a single impulse in water of any depth or in a dispersive medium” Phil. Mag. 23 (1887) 252
  16. L. Brillouin, “Wave propagation and group velocity,” Academic Press, New York, (1960)
  17. J. Jakiel, V.S. Olkhovsky and E. Recami, “On superluminal motions in photon and particle tunnellings,” Phys. Lett. A. 248 (1998) 156
  18. J. R. Fletcher, “Time delay in tunnelling through a potential barrier,” J. Phys. C: Solid State Phys. 18 (1985) L55
  19. Ch. Spielmann, R. Szip¨ocs, A. stingl and F. Krausz, “Tunneling of optical pulses through photonic band gaps,” Phys. Rev. Lett. 71 (1994) 2308
  20. A. Ranfagni, D. Mugnai, P. Fabeni and G. P. Pazzi, “Delay-time measurements in narrowed waveguides as a test of tunneling,” Appl. Phys. Lett. 58 (1991) 774
  21. A. Alippi, M. Germano, A. Bettucci, F. A. Farrelly and G. Muzio, “Traversal time of acoustic plate waves through a tunneling section,” Phy