Search Results - subject:"Field theory"

A BBGKY-based density gradient approximation of interparticle forces: Application for discrete Boltzmann methods

Martys, Nicos S. - In: Physica A: Statistical Mechanics and its Applications 362 (2006) 1, pp. 57-61

essentially the same mean-field-theory philosophy, do not apply the density gradient approximation in a self consistent fashion …

Persistent link: https://www.econbiz.de/10010872599

Hamiltonian and Brownian systems with long-range interactions: I Statistical equilibrium states and correlation functions

Chavanis, Pierre-Henri - In: Physica A: Statistical Mechanics and its Applications 361 (2006) 1, pp. 55-80

We discuss the equilibrium statistical mechanics of systems with long-range interactions. We contrast the microcanonical description of an isolated Hamiltonian system from the canonical description of a stochastically forced Brownian system. We show that the mean-field approximation is exact in...

Persistent link: https://www.econbiz.de/10011058238

Hamiltonian and Brownian systems with long-range interactions: II. Kinetic equations and stability analysis

Chavanis, Pierre-Henri - In: Physica A: Statistical Mechanics and its Applications 361 (2006) 1, pp. 81-123

We discuss the kinetic theory of systems with long-range interactions. We contrast the microcanonical description of an isolated Hamiltonian system described by the Liouville equation from the canonical description of a stochastically forced Brownian system described by the Fokker–Planck...

Persistent link: https://www.econbiz.de/10011062969

Contagion and coordination in random networks

López-Pintado, Dunia - In: International Journal of Game Theory 34 (2006) 3, pp. 371-381

Persistent link: https://www.econbiz.de/10005755792

Price of coupon bond options in a quantum field theory of forward interest rates

Baaquie, Belal E. - In: Physica A: Statistical Mechanics and its Applications 370 (2006) 1, pp. 98-103

European options on coupon bonds are studied in a quantum field theory model of forward interest rates. A approximation … small quantity. The field theory for the forward interest rates is in effect Gaussian, and when the payoff function for the … coupon bonds option is included it makes the field theory exponentially nonlinear. A Feynman perturbation expansion gives a …

Persistent link: https://www.econbiz.de/10010588726

Statistical field theory for simple fluids: The collective variables representation

Caillol, J.-M.; Patsahan, O.; Mryglod, I. - In: Physica A: Statistical Mechanics and its Applications 368 (2006) 2, pp. 326-344

An alternative representation of an exact statistical field theory for simple fluids, based on the method of collective …

Persistent link: https://www.econbiz.de/10010589383

Superconductors with topological order

Diamantini, M. C.; Sodano, P.; Trugenberger, C. A. - In: The European Physical Journal B - Condensed Matter and … 53 (2006) 1, pp. 19-22

We propose a mechanism of superconductivity in which the order of the ground state does not arise from the usual Landau mechanism of spontaneous symmetry breaking but is rather of topological origin. The low-energy effective theory is formulated in terms of emerging gauge fields rather than a...

Persistent link: https://www.econbiz.de/10009282992

Bourdieu and the journalistic field

Benson, Rodney (contributor) - 2005

Persistent link: https://www.econbiz.de/10004802993

Chemical etching of a disordered solid: From experiments to field theory

Gabrielli, Andrea; Baldassarri, Andrea; Angel Muñoz, Miguel - In: Physica A: Statistical Mechanics and its Applications 357 (2005) 1, pp. 122-128

We present a two-dimensional theoretical model for the slow chemical corrosion of a thin film of a disordered solid by suitable etching solutions. This model explains different experimental results showing that the corrosion stops spontaneously in a situation in which the concentration of the...

Persistent link: https://www.econbiz.de/10011058314

A COMMON MARKET MEASURE FOR LIBOR AND PRICING CAPS, FLOORS AND SWAPS IN A FIELD THEORY OF FORWARD INTEREST RATES

BAAQUIE, BELAL E. - In: International Journal of Theoretical and Applied … 08 (2005) 08, pp. 999-1018

the drift, all LIBOR interest rates have a common market measure. LIBOR is described using a quantum field theory model …

Persistent link: https://www.econbiz.de/10005060196