We study collisions of ultracold CaF molecules in strong static electric fields. These fields allow the creation long-range barriers interaction potential, effectively preventing from reaching short-range region where inelastic and other loss processes are likely to occur. carry out coupled-channel calculations rate coefficients for elastic scattering loss. develop an efficient procedure includ...

The 4f^6 systems were hypothesized to possess non-magnetic (J = 0) ground state. However, all such have distinctly shown the presence of non-zero effective moment. In this context, a rare earth orthovanadate EuVO4, which in spite having J 0 state, magnetic Our studies reveal three different regions compound, boundaries are demarcated from susceptibility data. high temperature exhibits linear de...

John Van Vleck published his classic monograph “The Theory of Electric and Magnetic Susceptibilities” in 1932 while on the faculty of the University of Wisconsin. In his later years, he worked on a second edition which unfortunately was never completed. After his death his wife Abigail gave his notes for the second edition to Chun Lin. These notes contain additions and other, mostly minor, chan...

B. M. Armstrong, Frank Ayres, R. P. Baker, G. A. Bliss, Blumberg, Brahana, Brand, O. E. Brown, C. C. Camp, Chittenden, Conkwright, Cope, Curtiss, H. T. Davis, Denton, Dickson, Dresden, Emch, Frink, C. A. Garabedian, Raymond Garver, Gouwens, Griffiths, Harkin, Harshbarger, W. L. Hart , Hickson, Hodge, Hofmann, L. A. Hopkins, Dunham Jackson, R .L . Jackson, B.W. Jones, Krathwohl,LaPaz,Lytle,McFar...

We consider the local properties of the Yb ion in the crystal electric field in the Kondo lattice compounds YbRh2Si2 and YbIr2Si2. On this basis we have calculated the magnetic susceptibility taking into account the Kondo interaction in the simplest molecular field approximation. The resulting Curie-Weiss law and Van Vleck susceptibilities could be excellently fitted to experimental results in ...

We study quantum caustics (i.e., the quantum analogue of the classical singularity in the Dirichlet boundary problem) in d-dimensional systems with quadratic Lagrangians of the form L = 1 2 Pij(t) ẋ ẋ +Qij(t)x ẋ + 1 2 Rij(t)x x + Si(t) x . Based on Schulman’s procedure in the path-integral we derive the transition amplitude on caustics in a closed form for generic multiplicity f , and thereby c...

Recent achievements at the EVN Mk IV data processor at JIVE include decreasing the read-out time for the whole correlator to 0.25 s (or 0.125 s for half the correlator), improving the end quality of user data (e.g., applying an improved 2-bit van Vleck correction), developing new astronomical capabilities (e.g., oversampling to ×4, wider-field mapping), and strengthening liaison procedures with...

We present a Floquet treatment of multiphoton quantum interference in a strongly driven superconducting flux qubit. The periodically time-dependent Schrödinger equation can be reduced to an equivalent timeindependent infinite-dimensional Floquet matrix eigenvalue problem. For resonant or nearly resonant multiphoton transitions, we extend the generalized Van Vleck GVV nearly degenerate high-orde...