研究目的
Investigating the joint action of ac and dc fields on one-dimensional quantum chains of two-level Fermi particles in the regimes of strong and ultrastrong coupling, and proposing a new concept of terahertz (THz) spectroscopy for future nanoelectronics and nano-photonics applications.
研究成果
The study developed a physical model of 1D two-level atomic chain with tunneling inter-atomic coupling driven by dc and ac fields in the regimes of strong and ultrastrong coupling. The passage to ultrastrong coupling dramatically changes the scenario of Rabi–Bloch oscillations, manifesting in the appearance of additional lines in the spectra of the tunneling current. These lines are identified as a contribution of anti-resonant interactions and remain even in the case of high losses characteristic of ultrastrong coupling. The promising potential applications of the obtained results in novel types of THz spectroscopy for nano-electronics have been proposed.
研究不足
The study is limited to theoretical modeling and numerical simulations without experimental validation. The impact of losses and dissipative broadening on the spectral lines is acknowledged but not deeply analyzed.
