Phase diagram of an imprinted copolymer in a random external field

1995 ◽  
Vol 28 (13) ◽  
pp. 3657-3666 ◽  
Author(s):  
V S Pande ◽  
A Yu Grosberg ◽  
T Tanaka
Keyword(s):  
Phase Diagram ◽  
External Field ◽  
Random External Field

On the mean-field Ising model in a random external field

1985 ◽  
Vol 41 (1-2) ◽  
pp. 299-313 ◽  
Author(s):  
S. R. Salinas ◽  
W. F. Wreszinski
Keyword(s):  
Ising Model ◽  
External Field ◽  
Mean Field ◽  
The Mean ◽  
Random External Field

TWO-DIMENSIONAL WANG–LANDAU SAMPLING OF AN ASYMMETRIC ISING MODEL

2009 ◽  
Vol 20 (09) ◽  
pp. 1357-1366 ◽  
Author(s):  
SHAN-HO TSAI ◽  
FUGAO WANG ◽  
D. P. LANDAU
Keyword(s):  
Phase Diagram ◽  
Ising Model ◽  
External Field ◽  
Density Of States ◽  
Triangular Lattice ◽  
Sampling Method ◽  
Two Dimensional ◽  
Theoretical Predictions ◽  
The Spectator ◽  
Three Body

We study the critical endpoint behavior of an asymmetric Ising model with two- and three-body interactions on a triangular lattice, in the presence of an external field. We use a two-dimensional Wang–Landau sampling method to determine the density of states for this model. An accurate density of states allowed us to map out the phase diagram accurately and observe a clear divergence of the curvature of the spectator phase boundary and of the derivative of the magnetization coexistence diameter near the critical endpoint, in agreement with previous theoretical predictions.

scholarly journals A Dielectric Instability of a Fermion Gas in a Random Potential

1977 ◽  
Vol 32 (8) ◽  
pp. 844-852
Author(s):  
V. Dallacasa
Keyword(s):  
External Field ◽  
Crystal Lattice ◽  
Alkali Metals ◽  
Random Potential ◽  
Coulomb Field ◽  
Acoustic Phonons ◽  
Frequency Dependent ◽  
Fermion Gas ◽  
Random External Field

Abstract A dielectric instability of a collection of charged fermions interacting via Coulomb forces and subjected to a random external field is pointed out. It is shown that, as a result of localization produced by the random potential, an RPA Coulomb field can generate a dielectric instability, both static or frequency dependent, resulting in a static or oscillating crystalline arrangement of the fermions. In simple metals, such as the alkali metals, this mechanism is shown to provide an explanation of the existence of the crystal lattice and of acoustic phonons.

Quantum correlations of three-qubit states driven by a classical random external field

2015 ◽  
Vol 90 (3) ◽  
pp. 035103 ◽  
Author(s):  
Youneng Guo ◽  
Maofa Fang ◽  
Shiyang Zhang ◽  
Xiang Liu
Keyword(s):  
External Field ◽  
Quantum Correlations ◽  
Qubit States ◽  
Random External Field
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