Browsing by Author "Pan, Wei"

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    Superradiant Decay of Cyclotron Resonance of Two-Dimensional Electron Gases
    (American Physical Society, 2014) Zhang, Qi; Arikawa, Takashi; Kato, Eiji; Reno, John L.; Pan, Wei; Watson, John D.; Manfra, Michael J.; Zudov, Michael A.; Tokman, Mikhail; Erukhimova, Maria; Belyanin, Alexey; Kono, Junichiro
    We report on the observation of collective radiative decay, or superradiance, of cyclotron resonance (CR) in high-mobility two-dimensional electron gases in GaAs quantum wells using time-domain terahertz magnetospectroscopy. The decay rate of coherent CR oscillations increases linearly with the electron density in a wide range, which is a hallmark of superradiant damping. Our fully quantum mechanical theory provides a universal formula for the decay rate, which reproduces our experimental data without any adjustable parameter. These results firmly establish the many-body nature of CR decoherence in this system, despite the fact that the CR frequency is immune to electron-electron interactions due to Kohnﾒs theorem.
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    Ventricular coupling in single ventricle patients: a MRI study of cardiac biomechanics
    (BioMed Central, 2016) Krishnamurthy, Ramkumar; Noel, Cory V.; Pan, Wei; Jacot, Jeffrey; Lantin-Hermoso, Regina; Krishnamurthy, Rajesh