The mid-summer drought of Central America is an important feature of loader the regional precipitation regime within the Pacific drainage ranging from Mexico to Panama.The drought is less severe when the Atlantic is warmer.Cooler temperatures in the tropical Atlantic signify a strengthening of the North Atlantic anticyclone and the alisos.When comb… Read More


In contrast to natural atoms, the potential energies for superconducting flux qubit (SFQ) circuits can be artificially controlled.When the inversion symmetry of the potential energy is broken, we find that multi-photon processes can coexist in multi-level SFQ circuits.Moreover, there are not only transverse but also longitudinal couplings between t… Read More