Electromagnetic field induced resonance tunneling in a quantum point contact (4 pages)

• G. González de la Cruz ^[1]
  1. [1] CINVESTAV-IPN, CDMX, México
• Localización: Revista Mexicana de Física, ISSN-e 0035-001X, Vol. 71, Nº. 1, 2025
• Idioma: inglés
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• Resumen

  • Recently experimental results described electron transport through a quantum point contact irradiated by an electromagnetic wave in thetunneling regime as a photon-stimulated tunneling. In this work, we study electron tunneling through potential barrier in the presence of an intense electromagnetic field. Using the time-dependent unitary transformation method, the electron scattering by the laser-dressed potential barrier is calculated analytically. It is shown that the potential barrier is modified in the presence of the electromagnetic radiation and electron transmission probability is enhanced with increasing the laser-field strength.