Analyzing quantum jumps of one and two atoms strongly coupled to an optical cavity

Abstract

We induce quantum jumps between the hyperfine ground states of one and two Cesium atoms, strongly coupled to the mode of a high-finesse optical resonator, and analyze the resulting random telegraph signals. We identify experimental parameters to deduce the atomic spin state nondestructively from the stream of photons transmitted through the cavity, achieving a compromise between a good signal-to-noise ratio and minimal measurement-induced perturbations. In order to extract optimum information about the spin dynamics from the photon count signal, a Bayesian update formalism is employed, which yields time-dependent probabilities for the atoms to be in either hyperfine state. We discuss the effect of super-Poissonian photon number distributions caused by atomic motion.

12 pages, 13 figures

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Cited by in corpus (11)

• Cavity-Modified Collective Rayleigh Scattering of Two Atoms
• Bayesian parameter inference from continuously monitored quantum systems
• Fast non-destructive parallel readout of neutral atom registers in optical potentials
• Bayesian feedback control of a two-atom spin-state in an atom-cavity system
• A Hidden Markov Model of atomic quantum jump dynamics in an optically probed cavity
• Optical bistability in strong-coupling cavity QED with a few atoms
• State-dependent fluorescence of neutral atoms in optical potentials
• Measurement-induced two-qubit entanglement in a bad cavity: Fundamental and practical considerations
• Atom-mediated effective interactions between modes of a bimodal cavity
• Minimizing the discrimination time for quantum states of an artificial atom
• Unitary decoupling treatment of a quadratic bimodal CQED model