We employ a single-charge counting technique to measure the full counting statistics of Andreev events in which Cooper pairs are either produced from electrons that are reflected as holes at a superconductor-normal-metal interface or annihilated in the reverse process. The full counting statistics consists of quiet periods with no Andreev processes, interrupted by the tunneling of a single elec...

COVER Spin-resolved scanning tunneling microscopy (STM) image (width: 51.6 nanometers) of single magnetic skyrmions (gray) and a few remaining spin spiral lines in a bilayer of Pd/Fe on top of an Ir(111) surface. The magnetic STM tip is sensitive to the out-of-plane magnetization component of the sample. Skyrmions can be created and annihilated locally by injecting spin-polarized currents from ...

Let k be a perfect field of characteristic p > 0. We obtain a complete classification of finite abelian local k-Hopf algebras with local dual such that the augmentation ideal is annihilated by the Frobenius map. We then use the theory of finite Honda systems to show that these Hopf algebras lift to extensions R of W (k) with 2 ≤ e(R/W (k)) ≤ p − 1, and construct all such lifts.

Disclaimer: We will work with rightD-modules. AnyD-module we consider will be at least coherent. We will work locally, choosing etale coordinates x1, . . . , xn; then dx1∧ . . .∧dxn is a generator forK, annihilated by ∂1, . . . , ∂n and thus we will regard K as D/(∂1, . . . , ∂n)D, and not bother writing the volume element down. All our constructions will patch together globally in an obvious m...

This paper deals with on-line identification of continuous-time systems with structured entries. Such entries, which may consist in inputs, perturbations or piecewise polynomial (time varying) parameters, can be defined as signals that can be easily annihilated. The proposed cancellation method allows to obtain non asymptotic estimators for the unknown coefficients. Application to delayed and s...

We discuss the Penrose limit of pure AdS space, which is flat Minkowski space. Even though there is no holographic principle, we construct a " holographic screen " on which information on the corresponding CFT is encoded. The screen is obtained as a gauge-fixing condition upon restricting the Hilbert space to the states that are annihilated by the generator of scale transformations. This constr...

The annihilation of vortex-antivortex pairs is a key event in two-dimensional Bose-Einstein condensates (BECs). It known that dissipation or catalyst vortex required for the one-component BECs. We numerically confirmed two-component BECs can be annihilated even without any vortices when intercomponent interaction strong. In addition, pair recreated alternately two components under certain condi...

As is well known, E(K) and X(E/K) are somehow linked in the sense that it is often easier to come by information about the Selmer group of E over K which is built out of both E(K) and X(E/K) than it is to get information about either of these groups separately. It occurred to us that, although these two groups (Mordell-Weil and X) are partners, so to speak, in the arithmetic analysis of the ell...

Some ideas are presented concerning the question which of the harmonic wavefunctions constructed in [hep-th/9909191] may be annihilated by all supercharges. In an attempt to extend our knowledge about the asymptotic form of zeroenergy wave functions of SU(N) invariant supersymmetric matrix models beyond N = 2, it was recently shown [1], for N = 3, how to construct Weyl ⊗ Spin(d) invariant asymp...