Quantum Nondemolition Detection of a Propagating Microwave Photon
Journal article, 2014

The ability to nondestructively detect the presence of a single, traveling photon has been a long-standing goal in optics, with applications in quantum information and measurement. Realizing such a detector is complicated by the fact that photon-photon interactions are typically very weak. At microwave frequencies, very strong effective photon-photon interactions in a waveguide have recently been demonstrated. Here we show how this type of interaction can be used to realize a quantum nondemolition measurement of a single propagating microwave photon. The scheme we propose uses a chain of solid-state three-level systems (transmons) cascaded through circulators which suppress photon backscattering. Our theoretical analysis shows that microwave-photon detection with fidelity around 90% can be realized with existing technologies.

NUMBER

FIELD

CIRCUIT

Author

Sankar Raman Sathyamoorthy

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Lars Tornberg

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Anton Frisk Kockum

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

B. Q. Baragiola

J. Combes

Christopher Wilson

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

T. M. Stace

Göran Johansson

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 112 9 art. no. 093601-

Subject Categories

Atom and Molecular Physics and Optics

DOI

10.1103/PhysRevLett.112.093601

More information

Created

10/6/2017