Detecting phonon blockade with photons

Journal Article · Mon Aug 01 04:00:00 EDT 2011 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.84.054503· OSTI ID:21596838

Didier, Nicolas; Pugnetti, Stefano; Fazio, Rosario ^[1]; Blanter, Yaroslav M ^[2]

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1. NEST, Scuola Normale Superiore and Istituto di Nanoscienze - CNR, Pisa (Italy)
2. Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft (Netherlands)

Measuring the quantum dynamics of a mechanical system, when few phonons are involved, remains a challenge. We show that a superconducting microwave resonator linearly coupled to the mechanical mode constitutes a very powerful probe for this scope. This new coupling can be much stronger than the usual radiation pressure interaction by adjusting a gate voltage. We focus on the detection of phonon blockade, showing that it can be observed by measuring the statistics of the light in the cavity. The underlying reason is the formation of an entangled state between the two resonators. Our scheme realizes a phonotonic Josephson junction, giving rise to coherent oscillations between phonons and photons as well as a self-trapping regime for a coupling smaller than a critical value. The transition from the self-trapping to the oscillating regime is also induced dynamically by dissipation.

• OSTI ID: 21596838
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 5 Vol. 84; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSONS
CAVITIES
COUPLING
DETECTION
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
EQUIPMENT
INTERACTIONS
JOSEPHSON JUNCTIONS
MASSLESS PARTICLES
MATHEMATICS
MICROWAVE RADIATION
OSCILLATIONS
PHONONS
PHOTONS
QUANTUM ENTANGLEMENT
QUASI PARTICLES
RADIATION PRESSURE
RADIATIONS
RESONATORS
STATISTICS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING JUNCTIONS
TRAPPING