2012/08/12 by Yoni Shalibo, Roy Resh, Ofer Fogel +5 · 3 citations
Computer Science · Physics and Astronomy · #Anharmonicity #Chirp #Coherent states #Cold Atom Physics and Bose-Einstein Condensates #Computer science #Harmonic #Harmonic oscillator #Laser #Network packet #Phase (matter) #Phase space #Photon #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum mechanics #Superconductivity #Wave packet #Wigner distribution function #cond-mat.supr-con #quant-ph
paper · pdf · doi:10.1103/physrevlett.110.100404
5 figures, 1 table and supplementary material
arxiv created 2012/08/12 · openalex publication_date 2013/03/05 · arxiv updated 2015/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The analysis of wave-packet dynamics may be greatly simplified when viewed in phase space. While harmonic oscillators are often used as a convenient platform to study wave packets, arbitrary state preparation in these systems is more challenging. Here, we demonstrate a direct measurement of the Wigner distribution of complex photon states in an anharmonic oscillator--a superconducting phase circuit, biased in the small anharmonicity regime. We apply our method on nondispersive wave packets to explicitly show phase locking in states prepared by a frequency chirp. This method requires a simple calibration, and is easily applicable in our system out to the fifth level.