Results 11 to 20 of about 1,205 (52)

Fractional Quantum Mechanics and Levy Path Integrals

open access: yes, 1999
The fractional quantum and statistical mechanics have been developed via new path integrals approach.Comment: 8 pages, added references for section
Berkelman   +11 more
core   +1 more source

Formal equivalence between Tsallis and extended Boltzmann-Gibbs statistics

open access: yes, 2007
A formal correspondence between the q-distribution obtained from the Tsallis entropy and non-maxwellian distributions obtained from the Boltzmann-Gibbs entropy is afforded.Comment: 3 pages.
Clayton   +7 more
core   +1 more source

The nature of most probable paths at finite temperatures

open access: yes, 2003
We determine the most probable length of paths at finite temperatures, with a preassigned end-to-end distance and a unit of energy assigned to every step on a $D$-dimensional hypercubic lattice.
Bhattacharyya, Pratip
core   +1 more source

Scale-Dependent Price Fluctuations for the Indian Stock Market

open access: yes, 2003
Classic studies of the probability density of price fluctuations $g$ for stocks and foreign exchanges of several highly developed economies have been interpreted using a {\it power-law} probability density function $P(g) \sim g^{-(\alpha+1)}$ with ...
  +8 more
core   +1 more source

Long Range Hops and the Pair Annihilation Reaction A+A->0: Renormalization Group and Simulation

open access: yes, 2003
A simple example of a non-equilibrium system for which fluctuations are important is a system of particles which diffuse and may annihilate in pairs on contact.
A.A. Lushnikov   +16 more
core   +1 more source

Finding passwords by random walks: How long does it take? [PDF]

open access: yes, 2009
We compare an efficiency of a deterministic "lawnmower" and random search strategies for finding a prescribed sequence of letters (a password) of length M in which all letters are taken from the same Q-ary alphabet.
Bose R C   +8 more
core   +1 more source

DNA denaturation and wetting in the presence of disorder

open access: yes, 2012
We present a precise equivalence of the Lifson-Poland-Scheraga model with wetting models. Making use of a representation of the former model in terms of random matrices, we obtain, in the limit of weak disorder, a mean--field approximation, that shows a ...
Kunz, Hervé, Livi, Roberto
core   +1 more source

Scattering functions of knotted ring polymers

open access: yes, 2005
We discuss the scattering function of a Gaussian random polygon with N nodes under a given topological constraint through simulation. We obtain the Kratky plot of a Gaussian polygon of N=200 having a fixed knot for some different knots such as the ...
A. V. Vologodskii   +12 more
core   +1 more source

Current reversal with type-I intermittency in deterministic inertia ratchets

open access: yes, 2003
The intermittency is investigated when the current reversal occurs in a deterministic inertia ratchet system. To determine which type the intermittency belongs to, we obtain the return map of velocities of particle using stroboscopic recording, and ...
B. Hu   +34 more
core   +1 more source

The quantum to classical transition for random walks

open access: yes, 2002
We look at two possible routes to classical behavior for the discrete quantum random walk on the line: decoherence in the quantum ``coin'' which drives the walk, or the use of higher-dimensional coins to dilute the effects of interference.
A. Ambainis   +7 more
core   +1 more source

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