65,657 research outputs found

    Intense terahertz laser fields on a quantum dot with Rashba spin-orbit coupling

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    We investigate the effects of the intense terahertz laser field and the spin-orbit coupling on single electron spin in a quantum dot. The laser field and the spin-orbit coupling can strongly affect the electron density of states and can excite a magnetic moment. The direction of the magnetic moment depends on the symmetries of the system, and its amplitude can be tuned by the strength and frequency of the laser field as well as the spin-orbit coupling.Comment: 5 pages, 4 figures, to be published in J. Appl. Phy

    Sending multiple RTP streams in a single RTP session

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    This memo expands and clarifies the behavior of Real-time Transport Protocol (RTP) endpoints that use multiple synchronization sources (SSRCs). This occurs, for example, when an endpoint sends multiple RTP streams in a single RTP session. This memo updates RFC 3550 with regard to handling multiple SSRCs per endpoint in RTP sessions, with a particular focus on RTP Control Protocol (RTCP) behavior. It also updates RFC 4585 to change and clarify the calculation of the timeout of SSRCs and the inclusion of feedback messages

    Chiral geometry of higher excited bands in triaxial nuclei with particle-hole configuration

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    The lowest six rotational bands have been studied in the particle-rotor model with the particle-hole configuration πh11/21⊗νh11/2−1\pi h^1_{11/2}\otimes\nu h^{-1}_{11/2} and different triaxiality parameter γ\gamma. Both constant and spin-dependent variable moments of inertial (CMI and VMI) are introduced. The energy spectra, electromagnetic transition probabilities, angular momentum components and KK-distribution have been examined. It is shown that, besides the band 1 and band 2, the predicted band 3 and band 4 in the calculations of both CMI and VMI for atomic nuclei with γ=30∘\gamma=30^\circ could be interpreted as chiral doublet bands.Comment: 4 pages, 4 figure
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