Superradiance from non-ideal initial states -- a quantum trajectory approach

Abstract

Collective emission behavior is usually described by the decay dynamics of the completely symmetric Dicke states. To study a more realistic scenario, we investigate alternative initial states inducing a more complex time evolution. Superposition states of the fully inverted Dicke state and the Dicke ground state with unequal mutual weights are studied as examples as well as superradiance stemming from atoms in clusters separated by more than one wavelength. The Monte Carlo wave function method serves as framework to study the dynamics of quantum states, which is determined by quantum jumps on the one hand and continuous evolution dynamics on the other hand. We compare this method with the classical picture of a system of rate equations written for the diagonal components of the density matrix.

arXiv comment11 pages, 5 figures

References in corpus (10)

• The Dicke Quantum Phase Transition with a Superfluid Gas in an Optical Cavity
• The Quantum Jump Approach to Dissipative Dynamics in Quantum Optics
• Coherent and Collective Quantum Optical Effects in Mesoscopic Systems
• Elimination of the A-square problem from cavity QED
• Adequacy of the Dicke model in cavity QED: a counter-"no-go" statement
• C++QED: An object-oriented framework for wave-function simulations of cavity QED systems
• Orthogonal jumps of wavefunction in white-noise potentials
• The Monte Carlo wave-function method: a robust adaptive algorithm and a study in convergence
• Superradiance of non-Dicke states
• Non-equilibrium dynamics of the Dicke model for mesoscopic aggregates: signatures of superradiance

Cited by in corpus (3)

• Characterizing superradiant dynamics in atomic arrays via a cumulant expansion approach
• Theoretical study of early time superradiance for atom clouds and arrays
• Dicke superradiance requires interactions beyond nearest-neighbors