منابع مشابه
Factorized ground state in dimerized spin chains
The possibility of observing factorized ground states in dimerized spin systems is studied. A set of sufficient conditions is derived which allows one to establish whether or not it is possible to have factorization both in nearestneighbor and long-range Hamiltonians. These conditions can be derived by forcing factorization for each of the pairwise terms of the total Hamiltonian. Due to the pec...
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The Ising spin glass model on Z 2 has spins o i = + 1 on sites i ~ Z 2 and nearest -neighbor interact ion with coupling Jb = + 1, b ~ B, B the set of bonds. The Jb are i ndependen t r a n d o m variables with P rob ( J b = 1) = x. T h e r m o d y n a m i c funct ions such as the free energy and the magnet iza t ion are r a n d o m variables on the space of bond configurations. Cons ider a finit...
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Using a stochastic algorithm introduced in a previous paper, we study the finite size volume corrections and the fluctuations of the ground state energy in the Sherrington-Kirkpatrick and the EdwardsAnderson models at zero temperature. The algorithm is based on a suitable annealing procedure coupled with a balanced greedy-reluctant strategy that drives the systems towards the deepest minimum of...
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ژورنال
عنوان ژورنال: EPL (Europhysics Letters)
سال: 2012
ISSN: 0295-5075,1286-4854
DOI: 10.1209/0295-5075/99/57004