2,989 research outputs found
Three-Qubit Gate Realization Using Single Quantum Particle
Using virtual spin formalism it is shown that a quantum particle with eight
energy levels can store three qubits. The formalism allows to realize a
universal set of quantum gates. Feasible formalism implementation is suggested
which uses nuclear spin-7/2 as a storage medium and radio frequency pulses as
the gates. One pulse realization of all universal gates has been found,
including three-qubit Toffoli gate.Comment: LaTeX, 6 pages, no figures; Submitted to "Pis'ma v Zh. Eksp. Teor.
Fiz.
The Dante Alighieri Society in Warsaw. From aristocratic sociability to Fascism’s intellectual showcasing (1924-1934)
The Dante Alighieri Society in Warsaw. From aristocratic sociability to Fascism’s intellectual showcasing (1924-1934)
‘Si deve amare la mamma anche se povera’: the Dante Alighieri Society, Italian emigration and the safeguarding of italianità , 1870-1925
Particle acceleration due to shocks in the interplanetary field: High time resolution data and simulation results
Data were examined from two experiments aboard the Explorer 50 (IMP 8) spacecraft. The Johns Hopkins University/Applied Lab Charged Particle Measurement Experiment (CPME) provides 10.12 second resolution ion and electron count rates as well as 5.5 minute or longer averages of the same, with data sampled in the ecliptic plane. The high time resolution of the data allows for an explicit, point by point, merging of the magnetic field and particle data and thus a close examination of the pre- and post-shock conditions and particle fluxes associated with large angle oblique shocks in the interplanetary field. A computer simulation has been developed wherein sample particle trajectories, taken from observed fluxes, are allowed to interact with a planar shock either forward or backward in time. One event, the 1974 Day 312 shock, is examined in detail
The Path-Integral Approach to Spontaneous Symmetry Breaking
We will investigate two models which exhibit SSB in the canonical approach:
the N=1 and N=2 linear sigma model. In both models the Green's functions and
the effective potential will be computed in the path-integral approach. We will
demonstrate how we get different results than in the canonical approach.Comment: PhD-thesi
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