Sensing single atoms in a cavity using a broadband squeezed light

Abstract

We investigate a single atom cavity-QED system directly driven by a broadband squeezed light. We demonstrate how the squeezed radiation can be used to sense the presence of a single atom in a cavity. This happens by transferring one of the photons from the field in a state with even number of photons to the atom and thereby populating odd number Fock states. Specifically, the presence of the atom is sensed by remarkable changing in the presence of one photon and the loss of squeezing of the cavity field. A complete study of quantum fluctuations and the excitation of multiphoton transitions is given.

References in corpus (8)

• The Quantum Internet
• Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
• Microwave photonics with superconducting quantum circuits
• Climbing the Jaynes-Cummings Ladder and Observing its Sqrt(n) Nonlinearity in a Cavity QED System
• Dressed Collective Qubit States and the Tavis-Cummings Model in Circuit QED
• Deterministic loading of individual atoms to a high-finesse optical cavity
• Resonator-Aided Single-Atom Detection on a Microfabricated Chip
• Dispersive Qubit Measurement by Interferometry with Parametric Amplifiers