In helioseismic inversions, the number of independent pieces of information that a mode set contains is much less than the actual number of modes. This is due in part to the similarity between the basis functions that define the inverse problem, the kernels, while the observational errors also contribute to the loss of independent information. We

Not Available

The smallest quantum code that can correct all one-qubit errors is based on five qubits. We experimentally implemented the encoding, decoding and error-correction quantum networks using nuclear magnetic resonance on a five spin subsystem of labeled crotonic acid. The ability to correct each error was verified by tomography of the process. The use

Not Available

The GOLF team pushes a new concept of instrument devoted to the search of gravity modes and low order low frequency p modes in order to improve our knowledge of the deep solar interior. The instrumental concept is to measure the Doppler shift together with the time evolution of the D1 sodium line using a 15 point resonance spectrometer. A sodium

Not Available