Abstract
Zero tunneling time and thereby a faster than light traversal velocity was calculated nearly a hundred years ago and has been observed recently. We report about experimental results and estimations, which confirm the zero time tunneling for elastic as well as for electromagnetic and Schrödinger waves. Zero time tunneling was first observed with microwaves 1992 (H. Aichmann and G. Nimtz, Found. Phys., vol. 44, p. 678, 2014; A. Enders and G. Nimtz, J. Phys. I, vol. 2, p. 169, 1992). In 2008, zero time was also observed for tunneling electrons (P. Eckle, A. N. Pfeiffer, C. Cirelli, et al., Science, vol. 322, p. 1525, 2008). Presumably, this effect took place with atoms quite recently (R. Ramos, D. Spierings, I. Racicot, and A. M. Steinberg, Nature, vol. 583, p. 529, 2020). The Einstein relation E2 = (ħk)2c2 is not satisfied in the tunneling process, since the wave number k is imaginary (E is the total energy, ħ the Planck constant, and c the vacuum velocity of light), Zero time tunneling is described by virtual photons (A. Stahlhofen and G. Nimtz, Europhys. Lett., vol. 76, p. 189, 2006). The tunneling process itself violates the Special Theory of Relativity. Remarkably, Brillouin conjectured that wave mechanics is valid for all waves independent of their field (L. Brillouin, Wave Propagation in Periodic Structures, Chap. VIII, New York, Dover Publications, 1953).
Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
References
[1] J. C. Bose, Double Prisms Experiment, Science and Culture, 2008, p. 408.Suche in Google Scholar
[2] A. Sommerfeld, Optics, Lectures on Theoretical Physics Vol. IV, § SC, San Diego, Academic Press, 1954.Suche in Google Scholar
[3] G. Nimtz, A. Haibel, R.-M. Vetter, A. Haibel, and G. Nimtz, “Monografie scientifiche, serie fisiche, Roma,” Proceedings Int. Conf., TAQMSB, Napoli, 2000, pp. 125–138. A. Haibel, G. Nimtz, Ann. Phys.(Leipzig) 10, 707 (2001).10.1002/1521-3889(200108)10:8<707::AID-ANDP707>3.0.CO;2-RSuche in Google Scholar
[4] A. Ranfagni, D. Mugnai, P. Fabeni, and G. P. Pazzi, “Delay-time measurements in narrowed waveguides as a test of tunneling,” Appl. Phys. Lett., vol. 58, p. 774, 1991, G. Nimtz and H. Aichmann, Z. Naturforsch. 72, 881 (2017). https://doi.org/10.1063/1.104544.Suche in Google Scholar
[5] S. Esposito, “On a universal photonic tunnelling time,” Phys. Rev. E, vol. 64, p. 026609, 2001. https://doi.org/10.1103/physreve.64.026609.Suche in Google Scholar
[6] H. Aichmann and G. Nimtz, “On the traversal time of barriers,” Found. Phys., vol. 44, p. 678, 2014. https://doi.org/10.1007/s10701-014-9804-2.Suche in Google Scholar
[7] A. Enders and G. Nimtz, “On superluminal barrier traversal,” J. Phys. I, vol. 2, p. 169, 1992. https://doi.org/10.1051/jp1:1992236.10.1051/jp1:1992236Suche in Google Scholar
[8] M. Alonso and E. J. Finn, “Fundamental university physics, vol. III,” Am. J. Phys., vol. 37, p. 235, 1969. https://doi.org/10.1119/1.1975492.Suche in Google Scholar
[9] R. Ramos, D. Spierings, I. Racicot, A. M. Steinberg, arXiv:1907.13523v1, 31.Jul 2019; S. Potnis et al., Phys. Rev. Lett. 118, 060402 (2017).Suche in Google Scholar
[10] U. S. Sainadh, H. Xu, X. Wang, et al.., “Attosecond angular streaking and tunnelling time in atomic hydrogen,” Nature, vol. 568, p. 75, 2019. https://doi.org/10.1038/s41586-019-1028-3.Suche in Google Scholar
[11] P. Eckle, A. N. Pfeiffer, C. Cirelli, et al.., “Attosecond ionization and tunneling delay time measurements in helium,” Science, vol. 322, p. 1525, 2008. https://doi.org/10.1126/science.1163439.Suche in Google Scholar
[12] T. Hartman, “Tunneling of a wave packet,” J. Appl. Phys., vol. 33, p. 3427, 1962. https://doi.org/10.1063/1.1702424.Suche in Google Scholar
[13] A. Enders and G. Nimtz, “Evanescent-mode propagation and quantum tunneling,” Phys. Rev.E, vol. 48, p. 632, 1994.10.1103/PhysRevE.48.632Suche in Google Scholar
[14] R. Ramos, D. Spierings, I. Racicot, and A. M. Steinberg, “Measurement of the time spent by a tunnelling atom within the barrier region,” Nature, vol. 583, p. 529, 2020. https://doi.org/10.1038/s41586-020-2490-7.Suche in Google Scholar
[15] G. Nimtz, “Macroscopic virtual particles exist,” Z. Naturforsch. A, vol. 74, no. 5, p. 363, 2019. https://doi.org/10.1515/zna-2019-0020.Suche in Google Scholar
[16] C. K. Carniglia and L. Mandel, “Quantization of evanescent electromagnetic waves,” Phys. Rev. D, vol. 3, p. 280, 1971. https://doi.org/10.1103/physrevd.3.280.Suche in Google Scholar
[17] S. T. Ali, “Evanescent waves in quantum electrodynamics with unquantized sources,” Phys. Rev. D, vol. 7, p. 1668, 1972.10.1103/PhysRevD.7.1668Suche in Google Scholar
[18] A. Stahlhofen and G. Nimtz, “Evanescent modes are virtual photons,” Europhys. Lett., vol. 76, p. 189, 2006. https://doi.org/10.1209/epl/i2006-10271-9.Suche in Google Scholar
[19] E. Merzbacher, Quantum Mechanics, 2nd ed. New York, John Wiley & Sons, 1970.Suche in Google Scholar
[20] L. Brillouin, Wave Propagation in Periodic Structures, Chap. VIII, New York, Dover Publications, 1953.Suche in Google Scholar
[21] G. Nimtz, “Do evanescent modes violate relativistic causality?,” LNP, vol. 702, p. 506, 2006.10.1063/1.2218191Suche in Google Scholar
© 2021 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- General
- Rapid Communication
- All waves have a zero tunneling time
- Atomic, Molecular & Chemical Physics
- Studies of local structures for Cu2+ centers in M2Zn(SO4)2·6H2O (M = NH4 and Rb) crystals
- Dynamical Systems & Nonlinear Phenomena
- Dynamics of liquid drop on a vibrating micro-perforated plate
- Inverse scattering method for the Kundu-Eckhaus equation with zero/nonzero boundary conditions
- Evolution of nonlinear stationary formations in a quantum plasma at finite temperature
- Solid State Physics & Materials Science
- Effect of ZnO nanoparticles on optical textures and image analysis properties of 7O.O5 liquid crystalline compound
- First-principles study on band gaps and transport properties of van der Waals WSe2/WTe2 heterostructure
- Dirac cones for graph models of multilayer AA-stacked graphene sheets
Artikel in diesem Heft
- Frontmatter
- General
- Rapid Communication
- All waves have a zero tunneling time
- Atomic, Molecular & Chemical Physics
- Studies of local structures for Cu2+ centers in M2Zn(SO4)2·6H2O (M = NH4 and Rb) crystals
- Dynamical Systems & Nonlinear Phenomena
- Dynamics of liquid drop on a vibrating micro-perforated plate
- Inverse scattering method for the Kundu-Eckhaus equation with zero/nonzero boundary conditions
- Evolution of nonlinear stationary formations in a quantum plasma at finite temperature
- Solid State Physics & Materials Science
- Effect of ZnO nanoparticles on optical textures and image analysis properties of 7O.O5 liquid crystalline compound
- First-principles study on band gaps and transport properties of van der Waals WSe2/WTe2 heterostructure
- Dirac cones for graph models of multilayer AA-stacked graphene sheets