823 citations
- University of HelsinkiFI19 papers
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6 papers · 1 filter
Radiative strength functions in 93-98Mo
M. Guttormsen, R. Chankova, U. Agvaanluvsan +12
Radiative strength functions (RSFs) in 93-98Mo have been extracted using the (3He,alpha gamma) and (3He,3He' gamma) reactions. The RSFs are U-shaped as function of gamma energy wit…
Diffusion local time storage
M. Kozlova, P. Salminen
In this paper we study a storage process or a liquid queue in which the input process is the local time of a positively recurrent stationary diffusion in stationary state and the p…
Perpetual integral functionals as hitting and occupation times
Paavo Salminen, Marc Yor
Let be a linear diffusion and a non-negative, Borel measurable function. We are interested in finding conditions on and which imply that the perpetual integral func…
Impurity effects at finite temperature in the two-dimensional S=1/2 Heisenberg antiferromagnet
Kaj H. Hoglund, Anders W. Sandvik
We discuss effects of various impurities on the magnetic susceptibility and the specific heat of the quantum S=1/2 Heisenberg antiferromagnet on a two-dimensional square lattice. F…
Theory of the Magnetic phase diagram of LiHoF
P. B. Chakraborty, P. Henelius, H. Kjønsberg +2
The properties of LiHoF are believed to be well described by a long-range dipolar Ising model. We go beyond mean-field theory and calculate the phase diagram of the Ising model…
Ground state phases of the Half-Filled One-Dimensional Extended Hubbard Model
A. W. Sandvik, L. Balents, D. K. Campbell
Using quantum Monte Carlo simulations, results of a strong-coupling expansion, and Luttinger liquid theory, we determine quantitatively the ground state phase diagram of the one-di…