Mesoscopic "Rydberg" atom in a microwave field

Abstract

We establish analogy between a microwave ionization of Rydberg atoms and a charge transport through a chaotic quantum dot induced by a monochromatic field in a regime with a potential barrier between dot contacts. We show that the quantum coherence leads to dynamical localization of electron excitation in number of photons absorbed inside the dot. The theory developed determines the dependence of localization length on dot and microwave parameters showing that the microwave power can switch the dot between metallic and insulating regimes.

4 pages, 5 figs, explanations added

References in corpus (4)

• Random-Matrix Theory of Quantum Transport
• The Statistical Theory of Quantum Dots
• AC electric and magnetic responses of non-connected Aharonov-Bohm rings
• Chaotic enhancement in microwave ionization of Rydberg atoms

Cited by in corpus (9)

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• Microwave realisation of a periodically driven system
• Reducing multiphoton ionization in a linearly polarized microwave field by local control
• Quantum response of weakly chaotic systems
• Energy absorption by "sparse" systems: beyond linear response theory
• "Weak Quantum Chaos" and its resistor network modeling
• Kolmogorov turbulence defeated by Anderson localization for a Bose-Einstein condensate in a Sinai-oscillator trap