Microwave Photon Counter Based on Josephson Junctions

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/52933

Title:	Microwave Photon Counter Based on Josephson Junctions
Authors:	Chen,YF;Hover,D;Sendelbach,S;Maurer,L;Merkel,ST;Pritchett,EJ;Wilhelm,FK;McDermott,R
Contributors:	物理學系
Keywords:	QUANTUM-NOISE;CIRCUIT;STATES
Date:	2011
Issue Date:	2012-06-11 10:50:38 (UTC+8)
Publisher:	國立中央大學
Abstract:	We describe a microwave photon counter based on the current-biased Josephson junction. The junction is tuned to absorb single microwave photons from the incident field, after which it tunnels into a classically observable voltage state. Using two such detectors, we have performed a microwave version of the Hanbury Brown-Twiss experiment at 4 GHz and demonstrated a clear signature of photon bunching for a thermal source. The design is readily scalable to tens of parallelized junctions, a configuration that would allow number-resolved counting of microwave photons.
Relation:	PHYSICAL REVIEW LETTERS
Appears in Collections:	[Department of Physics] journal & Dissertation

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