Martensite is a supersaturated solid solution of carbon in body-centered iron wherein interstitial atoms preferentially occupy single octahedral sublattice. Despite century research, the mechanism this long-range ordering still subject debate. Recently, Zener’s theory was challenged both experimentally and theoretically. In an attempt to settle controversy, we investigated by density functional...

We analyze the formation of maximally entangled Rydberg atom pairs subjected to Landau-Zener sweeps atom-light detuning. Though populations reach a steady value at longer times, phases evolve continuously, leading periodic oscillations in entanglement entropy. The local unitary equivalence between obtained states and Bell is verified by computing polynomial invariants. Finally, we study effect ...

Employing the time-dependent variational principle combined with multiple Davydov $\mathrm{D}_2$ Ansatz, we investigate Landau-Zener (LZ) transitions in a qubit coupled to photon mode various initial states at zero temperature. Thanks trial states, exact photonic dynamics taking place course of LZ transition is also studied efficiently. With driven by linear external field and initialized Schr\...

The Zhu-Nakamura theory was proved to work well within the TSH (trajectory surface hopping) scheme in the case of DH2 which presents a typical example of crossing seam type chemical reactions. It was found that the classically forbidden nonadiabatic transitions which cannot be treated by the Landau-Zener theory play important roles. In the present work the similar kind of analysis is carried ou...

Cold-target recoil-ion-momentum spectroscopy ~COLTRIMS! has been used to study single electron capture from He by Ar ions at projectile velocities between 0.2 and 1.0 a.u. Populations of 3d through 7l states on the final ion are resolved, and angular distributions are presented for separated major final channels. As the projectile velocity is raised, the reaction window is observed to spread. C...

Georg Heinrich,1 J. G. E. Harris,2,3 and Florian Marquardt1 1Arnold Sommerfeld Center for Theoretical Physics, Center for NanoScience and Department of Physics, Ludwig-Maximilians-Universität München, Theresienstr. 37, D-80333 München, Germany 2Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06520, USA 3Department of Applied Physics, Yale University, 15 Prosp...