A comparison of Josephson Voltage Standards (JVS) between the National Institute of Standards and Technology (NIST) and the Centro Nacional de Metrología (CENAM) held at CENAM from 21 to 23 of March 2006 is reported. The comparison was made at the 10 V level by measuring four Zener references using the JVS of CENAM and the transportable Compact Josephson Voltage Standard (CJVS) of NIST. The dif...

Time-dependent Schrödinger’s equation is integrated for a one-dimensional strongly-correlated electron system driven by large electric fields. For larger electric fields, many-body Landau-Zener tunneling takes place at anticrossings of the many-body energy levels. The nonlinear I-V characteristics as well as the time dependence of the energy expectation value are obtained. The energy of the Mot...

We study the propagation of molecular wave packets through the simplest two types of avoided crossings of electronic energy levels in a limit where the gap between the eigenvalues shrinks as the nuclear masses are increased. For these types of avoided crossings, the electron energy levels essentially depend on only one of the nuclear configuration parameters, as is the case for all diatomic mol...

Landau-Zener physics is often exploited to generate quantum logic gates and perform state initialization readout. The quality of these operations can be degraded by noise fluctuations in the energy gap at avoided crossing. We leverage a recently discovered correspondence between qubit evolution space curves three dimensions design noise-robust sweeps through an In case where crossing purely noi...