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- Publications
- Influence

SELF-ORGANIZED CRITICALITY IN THE HYSTERESIS OF THE SHERRINGTON-KIRKPATRICK MODEL

- F. Pázmándi, G. Zar'and, G. Zimányi
- Physics
- 10 February 1999

We study hysteretic phenomena in random ferromagnets. We argue that the angle dependent magnetostatic (dipolar) terms introduce frustration and long range interactions in these systems. This makes it… Expand

Theoretical modeling of prion disease incubation.

- R. V. Kulkarni, A. Slepoy, R. Singh, D. Cox, F. Pázmándi
- Physics, Medicine
- Biophysical journal
- 24 October 2001

We apply a theoretical aggregation model to laboratory and epidemiological prion disease incubation time data. In our model, slow growth of misfolded protein aggregates from small initial seeds… Expand

Revisiting the Theory of Finite Size Scaling in Disordered Systems

- F. Pázmándi, R. Scalettar, G. Zimányi
- Materials Science, Physics
- 17 April 1997

For phase transitions in disordered systems, an exact theorem provides a bound on the finite size correlation length exponent: ${\ensuremath{\nu}}_{\mathrm{FS}}\ensuremath{\ge}2/d$. It is believed… Expand

Using hysteresis for optimization.

- G. Zar'and, F. Pázmándi, K. Pál, G. Zimányi
- Medicine, Physics
- Physical review letters
- 7 October 2002

We propose a new optimization method based on a demagnetization procedure well known in magnetism. We show how this procedure can be applied as a general tool to search for optimal solutions in any… Expand

Reversal-field memory in the hysteresis of spin glasses.

- H. Katzgraber, F. Pázmándi, +4 authors G. Zimányi
- Medicine, Physics
- Physical review letters
- 13 May 2002

We report a novel singularity in the hysteresis of spin glasses, the reversal-field memory effect, which creates a nonanalyticity in the magnetization curves at a particular point related to the… Expand

Statistical mechanics of prion diseases.

- A. Slepoy, R. P. Singh, F. Pázmándi, R. V. Kulkarni, D. Cox
- Physics, Biology
- Physical review letters
- 26 February 2001

We present a two-dimensional, lattice based, protein-level statistical mechanical model for prion diseases (e.g., mad cow disease) with concomitant prion protein misfolding and aggregation. Our… Expand

Learning within bounds and dream sleep

- T. Geszti, F. Pázmándi
- Physics
- 21 December 1987

In a bounded-synapses version of Hopfield's model (1984) for neural networks the quasienergy of a given memory, which is approximately equal to the depth of the corresponding energy well is… Expand

Hysteretic Optimization

- G. Zar'and, F. Pázmándi, K. Pál, G. Zimányi
- Physics
- 19 September 2001

We propose a new optimization method based on a demagnetization procedure well known in magnetism. We show how this procedure can be applied as a general tool to search for optimal solutions in any… Expand

Spin glasses with cubic anisotropy

- Z. Domański, T. Kopeć, F. Pázmándi, P. Erdös
- Physics
- 15 May 1994

The infinite‐range quantum spin glasses with cubic anisotropy (K) are studied using a combination of the imaginary‐time representation with the n‐replica approach and the thermofield dynamic method.… Expand