Microwave Photon Detector in Circuit QED
Abstract
In this Letter we design a metamaterial composed of discrete superconducting elements that implements a high-efficiency microwave photon detector. Our design consists of a microwave guide coupled to an array of metastable quantum circuits, whose internal states are irreversibly changed due to the absorption of photons. This proposal can be widely applied to different physical systems and can be generalized to implement a microwave photon counter.
- Publication:
-
Physical Review Letters
- Pub Date:
- May 2009
- DOI:
- 10.1103/PhysRevLett.102.173602
- arXiv:
- arXiv:0811.3909
- Bibcode:
- 2009PhRvL.102q3602R
- Keywords:
-
- 42.50.-p;
- 85.25.Pb;
- 85.60.Gz;
- Quantum optics;
- Superconducting infrared submillimeter and millimeter wave detectors;
- Photodetectors;
- Condensed Matter - Mesoscale and Nanoscale Physics;
- Quantum Physics
- E-Print:
- accepted in Phys. Rev. Lett