Measurements of the Correlation Function of a Microwave Frequency Single Photon Source

Abstract

At optical frequencies the radiation produced by a source, such as a laser, a black body or a single photon source, is frequently characterized by analyzing the temporal correlations of emitted photons using single photon counters. At microwave frequencies, however, there are no efficient single photon counters yet. Instead, well developed linear amplifiers allow for efficient measurement of the amplitude of an electromagnetic field. Here, we demonstrate how the properties of a microwave single photon source can be characterized using correlation measurements of the emitted radiation with such detectors. We also demonstrate the cooling of a thermal field stored in a cavity, an effect which we detect using a cross-correlation measurement of the radiation emitted at the two ends of the cavity.

5 pages, 4 figures

References in corpus (7)

• Charge insensitive qubit design derived from the Cooper pair box
• Amplification and squeezing of quantum noise with a tunable Josephson metamaterial
• Reconstruction of non-classical cavity field states with snapshots of their decoherence
• Generating Single Microwave Photons in a Circuit
• Schemes for the observation of photon correlation functions in circuit QED with linear detectors
• Dynamics of dispersive single qubit read-out in circuit quantum electrodynamics
• Planck Spectroscopy and the Quantum Noise of Microwave Beam Splitters

Cited by in corpus (5)

• Observation of Resonant Photon Blockade at Microwave Frequencies using Correlation Function Measurements
• Nonclassical Radiation from Thermal Cavities in the Ultrastrong Coupling Regime
• Detecting phonon blockade with photons
• Lasing and transport in a quantum dot-resonator circuit
• Fourth moments reveal the negativity of the Wigner function