Control of atomic decay rates via manipulation of reservoir mode frequencies

Abstract

We analyse the problem of a two-level atom interacting with a time-dependent dissipative environment modelled by a bath of reservoir modes. In the model of this paper the principal features of the reservoir structure remain constant in time, but the microscopic structure does not. In the context of an atom in a leaky cavity this corresponds to a fixed cavity and a time-dependent external bath. In this situation we show that by chirping the reservoir modes sufficiently fast it is possible to inhibit, or dramatically enhance the decay of the atomic system, even though the gross reservoir structure is fixed. Thus it is possible to extract energy from a cavity-atom system faster than the empty cavity rate. Similar, but less dramatic effects are possible for moderate chirps where partial trapping of atomic population is also possible.

arXiv comment12 pages, 9 figures

References in corpus (4)

• Observation of the Vacuum-Rabi Spectrum for One Trapped Atom
• Universal dynamical control of quantum mechanical decay: Modulation of the coupling to the continuum
• Convolutionless Non-Markovian master equations and quantum trajectories: Brownian motion revisited
• Control of Decoherence and Relaxation by Frequency Modulation of Heat Bath

Cited by in corpus (6)

• Dissipation control in cavity QED with oscillating mode-structures
• Entanglement trapping in a non-stationary structured reservoir
• Adiabatic transfer of light in a double cavity and the optical Landau-Zener problem
• Generation of entanglement density within a reservoir
• Regular patterns in the information flow of local dephasing channels
• Cascade atom in high-Q cavity: The spectrum for non-Markovian decay