Multiphoton Processes in Driven Mesoscopic Systems

Abstract

We study the statistics of multi-photon absorption/emission processes in a mesoscopic ring threaded by an harmonic time-dependent flux $\Phi (t)$. For this sake, we demonstrate a useful analogy between the Keldysh quantum kinetic equation for the electrons distribution function and a Continuous Time Random Walk in energy space with corrections due to interference effects. Studying the probability to absorb/emit $n$ quanta $\hslash \omega$ per scattering event, we explore the crossover between ultra-quantum/low-intensity limit and quasi-classical/high-intensity regime, and the role of multiphoton processes in driving it.

6 pages, 5 figures, extended version

References in corpus (3)

• Coherent Quasiclassical Dynamics of a Persistent Current Qubit
• Parametric control of a superconducting flux qubit
• Photovoltaic Current Response of Mesoscopic Conductors to Quantized Cavity Modes

Cited by in corpus (2)

• Multifloquet to single electronic channel transition in the transport properties of a resistive 1D driven disordered ring
• The mesoscopic conductance of disordered rings, its random matrix theory, and the generalized variable range hopping picture