Since the pioneering works by Landau, Zener, Stückelberg, and Majorana (LZSM), it has
been known that driving a quantum two-level system results in tunneling between its states …

We investigate theoretically and numerically the light-matter interaction in a two-band
system (TBS) as a model system for excitation in a solid-state band structure. We identify five …

In this work, we derive exact solutions of a dynamical equation, which can represent all two-
level Hermitian systems driven by periodic N-step driving fields. For different physical …

In a vicinity of the Fermi surface, graphene layers with bandgaps allow for closely simulating
the vacuum of quantum electrodynamics and, thus, its yet unverified strong-field …

Monolayer graphene provides an ideal material to explore one of the fundamental light-field
driven interference effects: Landau-Zener-Stückelberg interference. However, direct …

Pseudospectral numerical schemes for solving the Dirac equation in general static curved
space are derived using a new pseudodifferential representation of the Dirac equation along …

Interband transitions of electrons in a gapped graphene monolayer are highly stimulated
near the Fermi surface when a high-frequency electric wave of weak intensity and a strong …

By numerically solving the time-dependent Schrödinger equation and semiconductor Bloch
equations, the light-induced residual current in monolayer graphene driven by a circularly …

The Breit-Wheeler pair production process in 2+ 1 dimensional spacetime is investigated. In
the perturbative regime, nonvanishing rates at the energy threshold are found when odd …

This Letter demonstrates control over multiphoton absorption processes in driven two-level
systems, which include, for example, superconducting qubits or laser-irradiated graphene …