July 31, 2017 to August 4, 2017
Fermi National Accelerator Laboratory
US/Central timezone

Detecting Axions with Superconducting Qubits

Aug 1, 2017, 1:51 PM
IARC Building (Fermi National Accelerator Laboratory)

IARC Building

Fermi National Accelerator Laboratory

Presentation Particle Detectors Particle Detectors


Akash Dixit (University of Chicago)


The Axion Dark Matter eXperiment (ADMX) aims to detect dark matter axions converting to single photons in a resonant cavity bathed in a uniform magnetic field. A qubit (two level system) operating as a single microwave photon detector is a viable readout system for ADMX and may offer advantages over the quantum limited amplifiers currently used ADMX. When weakly coupled to the detection cavity, the qubit transition frequency is shifted by an amount proportional to the cavity photon number. Through spectroscopy of the qubit, the frequency shift is measured and the cavity occupation number is extracted. At low enough temperatures, this system would allow sensitivities exceeding that of the standard quantum limit.

Primary author

Akash Dixit (University of Chicago)


Aaron Chou (Fermilab) Prof. David Schuster (U.Chicago)

Presentation materials